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Meta Analysis, Calcium, and Organic Food

Last week we discussed systematic reviews, and why they're better than review articles, or opinions. But they're not the only types of "studies of studies" I've presented to you. Sometimes you can go a step further. After you've collected all the appropriate studies, you can merge the data together and do one large analysis. Those studies are called meta-analyses, and they're the subject of today's Healthcare Triage
For those of you who want to read more or see references, look here: theincidentaleconomist.com/wor...
John Green -- Executive Producer
Stan Muller -- Director, Producer
Aaron Carroll -- Writer
Mark Olsen -- Graphics
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/ realjohngreen
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Пікірлер: 280

  • @KMAsKorner
    @KMAsKorner10 жыл бұрын

    I was one of the people who openly complained initially about the organic food video. Aaron replied and asked me a few questions then replied again and actually convinced me that I was wrong. For that, I will be happy to watch any video of his and suggest others to do the same. I am glad he does these videos.

  • @healthcaretriage

    @healthcaretriage

    10 жыл бұрын

    Made my day.

  • @danielmurillo9579

    @danielmurillo9579

    7 жыл бұрын

    What a BEAST your are KMA's. Popper would be proud. I mean that.

  • @eli_here
    @eli_here8 жыл бұрын

    Wow! What an awesome channel to discover !!!

  • @TheManOfRash
    @TheManOfRash9 жыл бұрын

    Great videos from you guys

  • @matthewgosse514
    @matthewgosse51410 жыл бұрын

    I'm a second year medical student and we're learning all about the different EBCP techniques and its great to see your videos in context with new up to date research! Keep the awesome videos coming!

  • @andrewadkins727
    @andrewadkins72710 жыл бұрын

    I studied crop production as a graduate student. What usually goes unsaid in this debate is that the difference in nutrient content between crops of different gene lines (both organic and non) is significantly greater than any detected difference in nutrient content between organic and non-organic crops of the same gene lines. Meaning, boosting nutrient content is best achieved by selecting the best gene line (crop variety) and not whether you grow them organically or not.

  • @Angelheaven
    @Angelheaven2 жыл бұрын

    I love the way you teach its sassy yet interesting and not to boring.

  • @JoeTaber
    @JoeTaber10 жыл бұрын

    'I'm not saying there was a conflict of interest. I'm just sayin'.' -- Aaron.

  • @healthcaretriage

    @healthcaretriage

    10 жыл бұрын

    Actually "I'm just sayin'" is one of my pet peeves! I wasn't saying that...

  • @InorganicVegan

    @InorganicVegan

    10 жыл бұрын

    Healthcare Triage Aaron, can you please do an episode on circumcision? My sister says that she wants to circumcise her future boys, and I think it's not a good idea. Anything would help.

  • @InorganicVegan

    @InorganicVegan

    10 жыл бұрын

    ***** I know, but I figured a doctor, especially a pediatrician, would be nice to hear from.

  • @DorthLous

    @DorthLous

    10 жыл бұрын

    Would the Green bros allow it, though?

  • @ratdude747

    @ratdude747

    10 жыл бұрын

    Dorth Lous Sexplinations did a video on it, and that's a Green Bros. Production.

  • @plutoh9958
    @plutoh99588 жыл бұрын

    I didn't realize this until watching the video on my computer. The slides with the magnifying glasses are magic eye pictures!

  • @jaycordary
    @jaycordary10 жыл бұрын

    Great job with your whole series, your perspective always illuminates and clarifies these important issues. I for one am glad to know that simply by spending a few minutes each week I understand the issues presented much better. Thank you for doing such a great job providing education perspective and facts.

  • @moxonm6
    @moxonm610 жыл бұрын

    Yay, camera focus!

  • @elliottmcollins
    @elliottmcollins10 жыл бұрын

    This is a fantastic review of how meta-analyses should be used to form opinions, and I'm going to share it with a lot of people. That said, whether Organic foods are more nutritious is a pretty uninteresting question, since that's not the rationale behind the industry.

  • @MatthewSummerton
    @MatthewSummerton10 жыл бұрын

    Good episode. Very informative

  • @drinductor8150
    @drinductor815010 жыл бұрын

    Seems like I have been waiting for forever since the last video. Love it. Keep them coming!

  • @bmaw604
    @bmaw60410 жыл бұрын

    Really enjoy your channel

  • @Thorsummoner0
    @Thorsummoner010 жыл бұрын

    so much sanity its unbelivable

  • @nikemeyer8888
    @nikemeyer888810 жыл бұрын

    Thank you for addressing this! I saw news about the new study and wondered how it affected the one you had previously discussed. Thanks for clearing it up :)

  • @FlippedphysicsNet
    @FlippedphysicsNet10 жыл бұрын

    Although I plan to do more reading, I'm definitely on the path to changing my view due to your videos on this topic. That said, I believe very strongly in buying local produce due to the emissions produced through transportation, and sometimes those same local items also happen to be organic since they're catering to the same market. So I hope this doesn't discourage people from buying local!

  • @Silverizael

    @Silverizael

    10 жыл бұрын

    Just means maybe avoid the local farmers selling that, since the extra price isn't worth it and buy from the other local farmers.

  • @elliottmcollins

    @elliottmcollins

    10 жыл бұрын

    Some things that might be worth throwing out there. tl;dr -- Organics aren't healthier, but are good for the environment. Buying local doesn't reduce emissions, sorry. First, Organics aren't healthier, but if you're interested in the environmental impact of your food, organics start to look much better. They typically release less and less harmful chemical runoff into the soil & water supply. Second, if you're interested in the "carbon footprint" of your food, it's more complicated, and locally grown food is often worse. Shorter trips are often the worst in per-mile terms, since they use smaller, less efficient vehicles. Getting food from a distant (even international) farm to store actually uses less gas than getting it from store to the typical home. Farmer's markets are even worse, since they typically move only small amounts of food and hop from one city to the next before making a sale. So the most important part of "local" may just be to walk to the supermarket. Finally, Transporation is typically a small part of a given calorie's carbon footprint. The impact of tillage, machinery, and inputs is several times larger, which means you may be better off buying from a distant place that's good at growing what you want. Shipping midwestern soy and California avocadoes is better than trying to do those things locally, and Organics with low-yield may be worse for climate change. And the Harvard link makes clear that even getting all your produce from the garden may not be as helpful as just eating less beef. www.extension.harvard.edu/hub/blog/extension-blog/buying-local-do-food-miles-matter shrinkthatfootprint.com/food-miles

  • @Silverizael

    @Silverizael

    10 жыл бұрын

    Elliott Collins Their environmental impact is worse, actually, because they have to use 3 to 5 times more pesticides, as organic pesticides wear off easier and wash off in rain, unlike most syntheitc pesticides. So organic pesticides have to be re-applied more often.

  • @elliottmcollins

    @elliottmcollins

    10 жыл бұрын

    Silverizael I've also talked to farmers who use genuinely eco-friendly techniques. but yeah, I've heard that this is often true.

  • @FlippedphysicsNet

    @FlippedphysicsNet

    10 жыл бұрын

    Elliott Collins Thanks for referencing your claims Elliott. I'll be sure to read through those links and consider this more carefully. Although my ultimate goal is to grow as much of my own food as possible once I have enough space.

  • @dairyqueen1234
    @dairyqueen123410 жыл бұрын

    I'm wondering if you can address what you mean by unsafe levels of pesticide. What studies have determined this? And who funded those studies? And what sort of food preparation strategies does this take into consideration? (Like washing veggies). Worth an episode!

  • @RyanGatts
    @RyanGatts10 жыл бұрын

    So _that's_ how you read those meta analysis charts! Thank you for helping out us laypeople by breaking it down.

  • @RainaRamsay
    @RainaRamsay10 жыл бұрын

    I eat organic because it tends to taste better, which causes me to eat more vegetables (which _does_ have clearly demonstrated health benefits.)

  • @Silverizael
    @Silverizael10 жыл бұрын

    A major thing to note about the most recent meta analysis as well is that, unless i'm mis-reading it, in its comparison of pesticide use, it completely omitted organic pesticides and only looked at synthetic pesticides, even though it is the former actually used in organic farming. A lot of the organic industry funded studies seem to do this, as they don't appear to want people to know about the likely larger pesticide residues that are on organic produce.

  • @MyAccountNameSucks
    @MyAccountNameSucks10 жыл бұрын

    Nice, I've been following you for a week now. Pretty interesting how you put emphasis on studies.

  • @theraider222
    @theraider22210 жыл бұрын

    Really looking forward to the Guinea worm episode! I've been following the carter centers work on the parasite for a while now. So exciting to see a worm that infected millions only a few decades ago being wiped out.

  • 10 жыл бұрын

    As I've said multiple times - quite possibly the most important channel on YT. Please let us know if it's unprofitable or loosing money before you shut it down!

  • @bricejohnson4272
    @bricejohnson42729 жыл бұрын

    I am convinced that conventional and organic are equally nutritious, but the chemicals in conventional fruits have a tendency to not only kill bugs and bacteria on the food, but also the good bacteria in our bodies in long term eating. That is one of many reasons I eat Organic, but this is the most fitting for this episode.

  • @laurinesax
    @laurinesax9 жыл бұрын

    Thanks for the follow-up! I had wondered about the 2014 study.

  • @gekkobear1650
    @gekkobear16506 жыл бұрын

    Same thing happened with the IARC glyphosate study. They just added studies that everyone else deemed subpar to sway the results.

  • @eljohn3
    @eljohn310 жыл бұрын

    I love these videos, first they point out the flaws in the organic food and gluten free fads, then they make you question "common knowledge" things like low sodium diets and the benefits of antioxidants.

  • @vwoxy1
    @vwoxy110 жыл бұрын

    I was somewhat uneasy during this video and didn't figure out why until about 3/4 through... Dr. Carroll's glasses were crooked!

  • @oddzag
    @oddzag10 жыл бұрын

    Wow, this was a really intriguing episode. Your final thought in particular. I was wondering, where do you draw the line when determining whether a study has been influenced by its funders?

  • @frederikwulff411
    @frederikwulff41110 жыл бұрын

    Love this video!

  • @PyroX792
    @PyroX79210 жыл бұрын

    You fixed your camera focus! Thank you! I couldn't watch your last few episodes, only listen.

  • @fartx211
    @fartx21110 жыл бұрын

    As an extension to this video, I do have a request. What determines whether a study is worth including in a meta-analysis? If the new study came to a different conclusion because it is more permissive, which one is correct? Both sides can claim the other might be cherry picking based on selection criteria. What makes methodology "good"? Perhaps give examples or case studies? I love this channel over a lot of other educational ones because it's not afraid to go into the rigorous "boring" analysis of research, and I would like to know more about the nitty gritty of scientific academia.

  • @erinmarie840
    @erinmarie84010 жыл бұрын

    Love this channel and its contents. Dr. Carroll et al., will you do an episode on multi-vitamins and absorption? Include calcium pills please. And gender differences/why different vitamins are marketed to men and women.

  • @MaoRuiqi
    @MaoRuiqi10 жыл бұрын

    Hey, Doc, have done the math? At the time of this writing, you've hit the YT-301 perplex, so i'm not sure how many views you currently have. Nevertheless, that you have 238 likes is a very high percentage of the actual number, although that number is yet unknown. And, without a dislike and having attracted 74 comments, this is a good indicator of your hard work and your appreciative audience.

  • @healthcaretriage

    @healthcaretriage

    10 жыл бұрын

    Appreciated!

  • @glynnL
    @glynnL10 жыл бұрын

    Gah, I love your videos. You sum up scientific articles so well and make the conclusions easier to understand for most of the population than their original form. Making scientific research more accessible and easily understandable is really important to counteract health fads that are actually detrimental to people's health. It's so easy to access a lot of information these days, it can be overwhelming, but your videos approach a topic clearly, in small doses, and what I believe to be in a very fair way (for all sides). Great job, and please continue making videos of such high caliber.

  • @DomSchu
    @DomSchu10 жыл бұрын

    All that matters is that organic is generally of a higher quality than conventional produce. At the end of the day I'll buy what looks and tastes better even if that costs a few extra dollars.

  • @simonnance

    @simonnance

    10 жыл бұрын

    define "higher quality"?

  • @ThePharphis

    @ThePharphis

    10 жыл бұрын

    S Nance presumably fresher which should be true if made locally (more likely with organic simply because long distances aren't an option)... but i'd rather save the 30% or whatever and eat what i already do :D

  • @kgal1298

    @kgal1298

    10 жыл бұрын

    Honestly if you want it that fresh you can also grow some of it at home though I know it probably depends where you live I still know and have known plenty of people who grew veggies and fruit in their yards or in plant boxes in their apartments if they are that concerned it's another option.

  • @Citizen1117

    @Citizen1117

    10 жыл бұрын

    If it truly taste better, which may be the case for you, then by all means. But there are few cases besides where "organic" is better than conventional foods.

  • @DomSchu

    @DomSchu

    10 жыл бұрын

    Sudonym Rodriguez I think it's really noticeable in fruit and lettuces. Especially organic or even fair trade bananas, potatoes, celery, or romaine lettuce are almost always better. I will admit in typical grocery stores with small organic sections the food has usually been there far too long and doesn't taste so good anymore.

  • @ShawnPitman
    @ShawnPitman10 жыл бұрын

    Organic food is just another religion. There are three primary arguments in favor of organic: nutrition/health, impact on the environment, and worker compensation. NONE of these three reasons has been borne out by data. You should be suspicious of anyone still promoting organic food. They are being either maliciously ignorant or outright deceptive.

  • @falconseye97
    @falconseye9710 жыл бұрын

    Haha! "Deal with it." I like you Dr. Carroll.

  • @Mean2guy
    @Mean2guy10 жыл бұрын

    HTC should do a video about homeopathy.

  • @iwishiweregay
    @iwishiweregay10 жыл бұрын

    good video, but vitamin E and beta carotene are nutrients (beta carotene is converted into vitamin A). the study that found higher antioxidant levels also found lower fiber levels, in addition to less protein.

  • @woobmonkeyp3537

    @woobmonkeyp3537

    10 жыл бұрын

    And those lower fiber levels are probably the most significant of the findings, from a nutrition standpoint.

  • @JohanKristo
    @JohanKristo10 жыл бұрын

    This episode was really great and I learned a lot. Good job.

  • @EmethMatthew
    @EmethMatthew10 жыл бұрын

    Thank you for your videos and your systematic explanations of your approach to interpreting research. As you point out, it is unusual to see that since most people just cherry pick what supports what they already believe and it is refreshing to see someone doing this. Your videos really deserve more views than they get.

  • @TheDirthound
    @TheDirthound2 жыл бұрын

    I recently found out that organic crops use plant derived pesticides, however those pesticides can be very toxic and be sprayed multiple times on a single crop. Whereas synthetic or conventional pesticides may only be sprayed one time so take your pick, multiple sprays from a an organic pesticide derived from a toxic plant or a single synthetic application. I also found out that the health effects of the organic pesticides are rarely studied and we fully don't understand what the health implications of exposure are or how long they stay in the system(human or environment). In fact there is a common organic pesticide that was, until recently, used in organic farming and it is still used to kill non native fish and plant species in lakes. Think about that: it is used to kill fish and it's ok to spray it on food because it's organic or plant derived. I'm starting to rethink organics and maybe not fret as much if I have to buy something conventionally grown if the organic option is not available. Either way we're all pretty much boned.

  • @CreightonMiller
    @CreightonMiller10 жыл бұрын

    Some of the text slides in this video were difficult to read quickly; I believe it was the result of the color scheme. Just an FYI.

  • @lissy42nerdfighter
    @lissy42nerdfighter10 жыл бұрын

    Can you do an episode on alternative and "complementary" medicines? Like does any of it really work?

  • @djfoo000
    @djfoo00010 жыл бұрын

    Deeper depth of field looks much better without the constantly in- and out-of-focus Aaron.

  • @megann2546
    @megann25466 жыл бұрын

    I personally find that I’m allergic to many fruits and veggies that aren’t organic. I believe it may have something to do with chemicals used that trigger those with a latex allergy. Perhaps they use those on some organic as well, but I’ve noticed a difference for sure.

  • @liketheduck
    @liketheduck10 жыл бұрын

    I really appreciate the content you make and the insight you bring to my every day thoughts about health. I'm a poor graduate student, so I hope you will accept my meager offering...

  • @goddanbriggs
    @goddanbriggs10 жыл бұрын

    As vaping is exploding into our culture. Can you do an episode on that?

  • @kgal1298
    @kgal129810 жыл бұрын

    All in all either one is still healthier than going out and eating fast food everyday, which is what people should really be focusing on if they want better health.

  • @engdallal
    @engdallal10 жыл бұрын

    Fine, then what is the perfect diet? Please make a video about it.

  • @KibbyCreekwood
    @KibbyCreekwood10 жыл бұрын

    Unrelated, but I went cross eyed while watching this video and it became 3D.

  • @ginkner
    @ginkner10 жыл бұрын

    For the graph at 1:09, why is the total error bar so much smaller than the average component error bars? I thought error compounded.

  • @loopylollypop27
    @loopylollypop2710 жыл бұрын

    I never personally thought that organic food was healthier, or better with regards to it's makeup. I've always supported organic produce because it's more sustainable. It's significantly better for the environment to not use pesticides that can harm the habitats of wildlife.

  • @TheDajamster

    @TheDajamster

    10 жыл бұрын

    Indeed. If we lose the bees, we're up a creek without a paddle.

  • @nolanthiessen1073

    @nolanthiessen1073

    10 жыл бұрын

    At least one study suggests that you're incorrect on the environment claim: www.newscientist.com/article/dn22240-organic-food-no-better-for-you-or-the-planet.html#.VA5rIWd0yUm

  • @woobmonkeyp3537

    @woobmonkeyp3537

    10 жыл бұрын

    loopylollypop27 Any development of land, be it for a shopping mall or for a field of flax, necessitates the alteration of the local environment, which is often detrimental to the species endemic to that environment. By choosing organic, you're choosing a method of crop-raising that requires altering more land, with lower crop yield, than conventional modern practices. If there were an infinite amount of arable land, not being used otherwise, your statement would be sensible and ethical. Sadly, there is not - and so the Amazon basin burns, to make space for your own warm, fuzzy, 'organic' choices. So, question: 'more sustainable' than what, exactly?

  • @oafkad
    @oafkad10 жыл бұрын

    Mentioned it elsewhere but I eat organic because I know what the ingredients are. If non-organic food starts using foodstuffs that I understand I'll purchase them more. I'm a big fan of chemistry and still I find myself scratching my noggin at stuff at Vons. Otherwise no illusions that organic is going to make me live to 300.

  • @kevindunne367
    @kevindunne36710 жыл бұрын

    Can you do an episode on how much sleep you need?

  • @ragnkja
    @ragnkja10 жыл бұрын

    Isn't the benefit of organically grown food more an environmental one than a nutritional one? That's always been my reason to prefer them whenever they're a viable option, at least.

  • @bella91xox
    @bella91xox10 жыл бұрын

    Would you mind posting the link to the vitamin D systematic review? In my experience, many clinical trials studying vitamin D supplements use much lower doses than what is recommended by vitamin D physiologists in the field so I'm curious as to what doses the studies used.

  • @alexminiphee9712
    @alexminiphee971210 жыл бұрын

    Did they change the lighting in the studio?

  • @jessicaquinnell
    @jessicaquinnell3 жыл бұрын

    I would have to agree that the studies on organic food do not suggest it is more nutrient dense. However, what is considered the benchmark for 'safe levels' of pesticides, for instance, is a predeterminate that may actually present difficulty in determining the 'safety' of conventional food versus organic. I don't imagine studies can account for existing policy, research or understanding that in itself may be dated or flawed. Also, the greater health of the land and eco-systems is not taken into account. The studies are only about human health of course which I won't dispute the findings of, however if we argue that the general health of the planet and of humans as a part of a very complex system, then how do you begin to substantiate the role of pesticides and other chemicals or hormones used in conventional farming practices? Just some thoughts

  • @birddog2017
    @birddog201710 жыл бұрын

    How about something on second hand smoke? Have there been any studies that have factual evidence to support any conclusions?

  • @nolanthiessen1073

    @nolanthiessen1073

    10 жыл бұрын

    As far as I've seen, there's no evidence showing that second hand smoke is safe. Instead, there is a small group of people with vested interests who pay scientists to write reviews on the methodology of studies showing that it's dangerous. As was mentioned in the last HCT video, reviews are not in themselves actual studies. This is being done by the same well-funded 'grassroots' organizations which now deny climate change. They don't make evidence against the consensus, they try to convince people there is no consensus. This is written about in the book _Merchants of Doubt_ by Naomi Oreskes.

  • @InorganicVegan

    @InorganicVegan

    10 жыл бұрын

    Not possible. A randomized controlled trial on something like that would be shut down by the ethics board in 5 seconds. That study would require intentionally risking giving people cancer. 100% unethical.

  • @Steinwagner15

    @Steinwagner15

    10 жыл бұрын

    What about 3rd hand smoke? It exists you know!

  • @plucian9230
    @plucian92309 жыл бұрын

    calcium? where is the calcium?

  • @swatsaw6
    @swatsaw610 жыл бұрын

    well i just wanted to share my thoughts, I have heard that organicly grown fruits and vegetables dont have more nutrients or vitamins but they are smaller in size so they are packed in a smaller package, what are your thoughts on this?

  • @Time_Traveling_Corgi
    @Time_Traveling_Corgi10 жыл бұрын

    "Milk is sorta ridiculous... deal with it." LOL

  • @FrayAdjacentTX

    @FrayAdjacentTX

    10 жыл бұрын

    Milk ridicules what? Or is it ridiculous?

  • @Time_Traveling_Corgi

    @Time_Traveling_Corgi

    10 жыл бұрын

    Matthew Johnson haha thanks.

  • @lloydy272
    @lloydy27210 жыл бұрын

    I would like to see a show on strep throat. In the UK I never heard about it. Either people get it there a lot less or no body cares. But here in the USA I hear about it all the time and it seems like the worst thing ever and you NEED to see a doctor about it. But from what I can gather, antibiotics don't help very much but people don't seem to like to hear that. Can you tell us what the research has to say on the topic please?

  • @jellyfox2861

    @jellyfox2861

    10 жыл бұрын

    We do get strep throat we just don't call it that. We usually just call it tonsillitis.

  • @lloydy272

    @lloydy272

    10 жыл бұрын

    jellyfox That makes sense. But most of the time tonsillitis is caused by a virus and I rarely hear people suggest that you take antibiotics.

  • @stevewalker1790

    @stevewalker1790

    10 жыл бұрын

    James Lloyd Tonsillitis can be caused by a virus or bacteria, and it tends not to last longer than a few days at a time. I used to get it a lot as a teenager. I found that the only difference was that the bacterial infection gave me really bad breath. Doctors would always prescribe antibiotics, and the tonsillitis symptoms will have faded by the end of the prescription regardless.

  • @artzfreak

    @artzfreak

    10 жыл бұрын

    Tonsilitis or pharyngitis just means swelling of the tonsils or pharynx - basically, a sore throat. Most of the time it's viral, and not a huge deal. When it's caused by a bacteria, it's most likely to be a case of strep throat. The symptoms will go away whether antibiotics are used or not. BUT antibiotics significantly reduce the risk of transmitting to others. And it makes sure there are no complications. And since the complications of strep throat include things like rheumatic fever, that's kind of important.

  • @gonzaloglz88
    @gonzaloglz8810 жыл бұрын

    Are there any data regarding the taste of organic v. Conventional food?

  • @sylvanscott
    @sylvanscott9 жыл бұрын

    is there a study which combines the psychological or physiological benefits of the placebo effect and the consumption of organic foods? If I'm eating a commercially grown apple, but am told it is 100% organically grown could my body somehow yield some kind of higher benefit from it?

  • @Leviathanjz
    @Leviathanjz10 жыл бұрын

    Hey Aaron, can you cover the efficacy of flossing? There seems to be meta-analyses finding no significant impact and ones finding reductions in plaque and gingivitis compared to just brushing. Does flossing actually have an impact, or is it just a mislead common sense?

  • @mmixan
    @mmixan10 жыл бұрын

    did you use a different camera, or change the depth of field for this episode? it looks.... different, but much more in focus :)

  • @mattwodziak1750
    @mattwodziak17504 жыл бұрын

    I would really love to know if conventionally grown foods affect gut microbiome.

  • @WolfgangLizana

    @WolfgangLizana

    4 жыл бұрын

    matt wodziak why does the microbiome matter if there is NO DIFFERENCE in health outcomes? You don’t care about clinical outcomes?

  • @ihavenomouthandimustmeme
    @ihavenomouthandimustmeme10 жыл бұрын

    I've been watching this series since its first episodes and I can confidently say that the most used phrase in it, is "...no evidence..." :)

  • @freyloda
    @freyloda10 жыл бұрын

    Didn't the AREDS studies on nutritional supplements for macular denegeration containing beta-carotene actually find that it increases the rate of getting lung cancer in previous smokers?

  • @Silverizael

    @Silverizael

    10 жыл бұрын

    I don't think the conclusion was robust enough to rule out random variance.

  • @bemk
    @bemk10 жыл бұрын

    Healthcare Triage I'm seeing all kinds of messages in the news here, about the pesticides on non-organic foods killing out honey bees and different kinds of insects, and also the birds that eat those insects. Those messages come from people with a clear interest against pesticides and because of that manage to make the news. I also see a lot stating that those pesticides are safe for the biosphere and that we shouldn't worry about it. Those messages clearly come from the people with an interest in selling those pesticides, and they too pay to make the news. Could you point out a couple of studies that show what's really going on? Would it help certain species if we were to shift more of our food production to organic food or are there better ways to take care of the other species on our planet, such as banning certain pesticides?

  • @JoshuaChowabc

    @JoshuaChowabc

    10 жыл бұрын

    I would also like to get to know the effect on other natural plants and beneficial insects.

  • @nolanthiessen1073

    @nolanthiessen1073

    10 жыл бұрын

    There are hundreds, if not thousands, of pesticides. You can't paint them all with the same brush. The type of pesticide which is argued to be killing bees is known as neonicotinoids which are fairly new, so we don't know the long term effects. Other pesticides which have been used for decades, however, are mostly shown to be safe.

  • @bemk

    @bemk

    10 жыл бұрын

    Nolan Thiessen that's the reason I'm asking for more data

  • @ideatician4280
    @ideatician42807 жыл бұрын

    This is a pretty meta meta analysis analysis... That's pretty fucking meta.

  • @99thTuesday
    @99thTuesday10 жыл бұрын

    Any comment on types of research that can't be control tested studies because of rarity or ethics? How should we be careful with it?

  • @wabbajackwabbajack6932
    @wabbajackwabbajack69328 жыл бұрын

    IMO a lot of the benefits of eating organic food come from the fact that its less processed. I dont know how it is where you live but here most of the local grocery stores carry almost exclusively processed garbage, with maybe a lackluster produce aisle thrown in somewhere for show...but then you go to the "organic" store and it seems difficult to find food that is processed. And the produce there is incredibly fresh, maybe thats just where I live...even though they focus on organic food they also sell nonorganic food there as well, most of that still tends to be less processed, I can tell the difference in taste and sometimes they ripen at different times. Does that have any effect on health? Probably not but I prefer that store for damn sure. lol

  • @SecretFiri
    @SecretFiri10 жыл бұрын

    When it comes to food, my only real concern is: A) Is it safe? B) Is it delicious? If that's a GMO or not, I don't care.

  • @Birfhum
    @Birfhum10 жыл бұрын

    Yet, everyone who prefers organic food will still ignore the facts.

  • @sonicpsycho13
    @sonicpsycho1310 жыл бұрын

    In next week's news, I hope you cover this "CDC whistleblower" thing that has exploded. Dr. William Thompson is the subject. From reviewing sites, many claims seem very suspect.

  • @hispanohablanteliam3796
    @hispanohablanteliam37969 жыл бұрын

    He never replies to emails...

  • @TheWolphren
    @TheWolphren10 жыл бұрын

    $429,000?! For a meta-analysis?! How many grad students did they pay to sift through the literature?! Does anyone else feel this a insane amount of funding for a meta-analysis, considering that they are not actually conducting new research, just combining older studies and running the data through a big computer?

  • @Silverizael

    @Silverizael

    10 жыл бұрын

    Maybe they thought the more money the spent, the more prestigious the study would sound?

  • @thescowlingschnauzer
    @thescowlingschnauzer10 жыл бұрын

    I get it - milk isn't especially healthy. I still like it on my cereal.

  • @BeenSauce
    @BeenSauce10 жыл бұрын

    "Deal with it" Whuuuuuu~

  • @agemoz
    @agemoz10 жыл бұрын

    your collar

  • @hatorigirl1202
    @hatorigirl120210 жыл бұрын

    I just read an "article" on some website that was filled with vague correlation and absolutely no statistics or facts that said that research in mice found that antibiotic use could harm the bacteria balance in the digestive tract and cause food allergies. Generally I love another reason to be wary of antibiotics, but this was a wildly unsupported claim on this website. Is there any truth to what I can't fathom calling more than a rumor? I know antibiotics can harm healthy bacteria for the body, and can mess with the digestive system, but could it actually affect food allergies?

  • @Silverizael

    @Silverizael

    10 жыл бұрын

    Certain antibiotic treatments can harm gut flora, yes, though I have no idea where the heck food allergies comes into that. That last part makes no sense at all and I would assume is completely unsubstantiated on the part of whatever website you read it on.

  • @dylanhardaway1259
    @dylanhardaway125910 жыл бұрын

    Yeah! Deal with it! =)

  • @jedigecko06
    @jedigecko0610 жыл бұрын

    Episode idea: Does smoking actually help you slim, or is this just a myth? As a non-smoker, I've never understood why people start.

  • @jamesmurray4176

    @jamesmurray4176

    10 жыл бұрын

    I don't think getting slim is anybody's primary reason for starting regardless of whether it's true. This is just anecdotal based on my own experience, but peers around you smoking leads you to try it, smoking kinda feels nice, you allow yourself another, and another, you buy yourself a pack, and BOOM now you're addicted. Cigarettes are an appetite suppressant, so that would have an affect on how much you eat and how frequently you eat. It's not a stretch to think it would have at least some effect on a person's weight.

  • @SenpaiTorpidDOW

    @SenpaiTorpidDOW

    10 жыл бұрын

    Agreed. Definitely more healthy ways of going about reducing your weight.

  • @woobmonkeyp3537

    @woobmonkeyp3537

    10 жыл бұрын

    Smoking doesn't help you slim down. It does, however, cut down on your senses of smell and taste, making eating more mechanical and less sensual. This may lead some to eat less, overall; then again, it may also lead to eating more flavourful, less healthy foodstuffs. Example: after a cigarette, you can't taste much from that pear in your hands, but the excessive seasoning on that bag of potato chips still pops! I haven't seen figures, but anecdotally, there seems to be about the same ratio of lardasses to hardbodies in smokers as there is in the general population.

  • @CraftnMomma
    @CraftnMomma10 жыл бұрын

    I wish you could pick what ads you play, sick of the political ad I keep getting when watching your vids

  • @Overonator
    @Overonator10 жыл бұрын

    Meta-analysis and systematic reviews suffer from the same problem: Garbage in, garbage out. If you include garbage individual studies in your meta-analysis or systematic review, you will have garbage conclusions.

  • @sk8rdaniel
    @sk8rdaniel9 жыл бұрын

    OK we all agree that organic food is not more nutritious and antioxidants are not a major deal. We need some studies/meta analysis on organic vs conventional farming regarding yield and environmental factors!!!!!! Thanks to whoever does it.... I'm not a scientistic. I'm just really tired of talking to nut bar factor 10 hippy morons everywhere in the world I go to.

  • @sk8rdaniel

    @sk8rdaniel

    9 жыл бұрын

    Oh and this is quite possibly the best channel on KZread. I often share it with my friends and colleagues.

  • @ferafish213

    @ferafish213

    9 жыл бұрын

    Study of crop yields has been done www.mcgill.ca/newsroom/node/9942

  • @chipmefford9668

    @chipmefford9668

    9 жыл бұрын

    Fera Fish another study (30 years) on crop yields has also been done. rodaleinstitute.org/our-work/farming-systems-trial/ in fact, many studies have been done.

  • @TheDajamster
    @TheDajamster10 жыл бұрын

    I don't go for organic because I think there's more nutrients in it. I buy it to avoid the toxins that are often sprayed on conventional crops. As for GMOs, if the genetic manipulation is only for the purpose that the plant survives being dosed with more poisons, I'm steering away from them too. Monsanto started out as a *PESTICIDE* company and started doing GMO so they could sell More Pesticides.

  • @woobmonkeyp3537

    @woobmonkeyp3537

    10 жыл бұрын

    So, you avoid the pesticides that are specifically engineered to be targeted only at pests, and harmless to humans - in order to pay more for the privilege of consuming more generalized pesticides that are indiscriminate in what they kill? Also, read a bit about GMO from scientists, not reactionaries. There is a great deal more going on than just one company looking for immediate profits - feeding the world, preventing common nutrition deficiencies (and associated diseases), while better using marginal lands (thereby conserving prime biospheres). . . . Blathering against GMO is just one of the modern ways of saying 'look at me! I'm a poorly-informed dim bulb!' Your complaint about Monsanto is meaningless. Who would know better about how to effectively use pesticides, than people who've spent nearly a century studying and developing them? Bic started as a razor company - does that mean that their lighters and pens are going to slice you open if you use them?

  • @TheDajamster

    @TheDajamster

    10 жыл бұрын

    And you misunderstand the idea of Organic. It *doesn't* mean using "more generalized pesticides." It means using *non-toxic* methods for getting rid of insects, such as letting the chickens eat the bugs off of the plants. As for Monsanto, I grew up hearing commercials for "Roundup-Ready" seed. As in, won't die when sprayed by that toxin. You say it's safe? Go drink a gallon & get back with me. And if their product is so safe, why did they buy off politicians to pass a law *specificly stating* that Monsanto products can't be barred from the market, *even if it is later found to be harmful?* Sounds like they know something they're not telling the rest of us.

  • @woobmonkeyp3537

    @woobmonkeyp3537

    10 жыл бұрын

    TheDajamster No, I posit that you're looking at the term 'organic' with rose-tinted sunglasses firmly affixed to your nose. There are few actual legal restrictions on certified 'organic' crop-raising. Fewer, in fact, than there are on modern, effective, methods. Basically, don't use human waste as fertilizer. There are many 'organic' pesticides which are used, and are incredibly toxic to humans and other mammals. Rotenone, neem oil, pyrethrone - all are potentially deadly, and are generally used with abandon under the delusion that 'natural' = 'safe.' 'You say it's safe? Go drink a gallon & get back with me.' You say water is safe? Go chug a couple olympic-sized swimming pools and get back with me. Your hyperbole doesn't help your case, sir or madam - it only makes you look like a complete idiot. 'why did they buy off politicians. . .' ***Citation Needed***

  • @TheDajamster

    @TheDajamster

    10 жыл бұрын

    woobmonkey p It helps to know the growers. You eat what you want & I'll make my own decisions. I do agree with your risk assessment that a gallon of Roundup is comparable to attempting a couple of olympic-sized swimming pools. Monsanto Protection Act: en.wikipedia.org/wiki/Farmer_Assurance_Provision Fortunately there was enough of an outcry and the mandate was allowed to expire.

  • @woobmonkeyp3537

    @woobmonkeyp3537

    10 жыл бұрын

    TheDajamster 'I do agree with your risk assessment that a gallon of Roundup is comparable to attempting a couple of olympic-sized swimming pools.' It wasn't a risk assesment. It was me pointing out the inherent absurdity of your comment. There are closely-monitored restrictions on the amounts of pesticides used, and when roundup-ready seedstocks are planted, even less pesticide is necessary. And, that's without even pointing out that there are ZERO cases of human toxicity, outside of attempted suicide via direct ingestion in quantity. Did you even read the wiki page you cited? Not a single shred of evidence of anyone being paid off - that's a serious accusation you've made, with no proof whatsoever. Otherwise known as slander. Dirty pool, mate. Also, most of the support for that law came from FARMERS, not bioengineers. Try again. How's the view from inside your own colon?

  • @Nate303
    @Nate3039 жыл бұрын

    I feel very neutral, I have no feelings either way. I just want to eat stuff

  • @dawsonrider01
    @dawsonrider0110 жыл бұрын

    personally I feel ANY level of pesticide in my food is unsafe. just saying

  • @Meloncov

    @Meloncov

    10 жыл бұрын

    Your feelings are entirely irrelevant to the facts of the matter. Do you avoid eating apples because they contain arsenic, and any level of arsenic in your food is unsafe?

  • @jamesmurray4176

    @jamesmurray4176

    10 жыл бұрын

    What you feel and what is true are two different things.

  • @nolanthiessen1073

    @nolanthiessen1073

    10 жыл бұрын

    Fun fact - organic food often uses *more* pesticides than conventional farming methods. The difference, of course, is that those pesticides are labelled as 'organic' for various reasons, mostly because they're found in nature. As any biochemist will tell you, being 'from nature' doesn't necessarily mean a compound is any safer than a man-made compound.

  • @DanThePropMan

    @DanThePropMan

    10 жыл бұрын

    The dose makes the poison.

  • @dawsonrider01

    @dawsonrider01

    10 жыл бұрын

    Kevin Baker I don't avoid eating apples I avoid eating their seeds, which is where the poisons are more likely to be found.

  • @ljmastertroll
    @ljmastertroll10 жыл бұрын

    Meta analysis is what the NSA is supposedly using.

  • @Meloncov

    @Meloncov

    10 жыл бұрын

    You're thinking meta-data analyses. Not the same thing.

  • @ljmastertroll

    @ljmastertroll

    10 жыл бұрын

    Kevin Baker Oops. Your right - thanks for the correction!

  • @nolanthiessen1073

    @nolanthiessen1073

    10 жыл бұрын

    ***** But it is the same idea. Taking large amounts of information, combining it, and withdrawing useful information.

  • @EmethMatthew

    @EmethMatthew

    10 жыл бұрын

    Also, the problem with the NSA is that they are taking their data from people without their knowledge or consent and using it to analyze "things" that presumably then influence decisions being made that have no public oversight to make sure they are using this unconsented data wisely or even usefully. THAT is the major difference from peer-reviewed and published scientific meta-analyses of data that frequently is ignored in decision making anyway... :-P

  • @nolanthiessen1073

    @nolanthiessen1073

    10 жыл бұрын

    EmethMatthew As far as I know, authors do not have knowledge nor give their consent to have their studies used in the majority of systematic reviews.

  • @sunnyjim6505
    @sunnyjim650510 жыл бұрын

    Wow - you really don't like organic food. And I don't really understand why it's so important to discourage people from eating organic. There are a variety of other benefits - cleaner water, greater biodiversity, and fewer pesticides among them. These less direct health benefits are shared by the whole population, not just the people buying organic. Something else that you're leaving out of all this research you're reporting, as though it's the whole story, is that commercially grown organic food is not the same as the food you'd be getting at a farmers' market or growing yourself. The single variety of broccoli, carrots, or beefsteak tomatoes you purchase at the grocery store has been selectively bred for size, color, crop yield, and ease of transport - not for nutrition or flavor. Heirloom varieties, which are very often grown organically, may have more vitamins, minerals, anti-oxidants, and phytonutrients than the mono-culture crops from ConAgra or Dole.

  • @woobmonkeyp3537

    @woobmonkeyp3537

    10 жыл бұрын

    sunny jim Unless your local farmers' market is somehow different from every other market in the world, the farmers there are just as much commercial enterprises as any others supplying your local grocery store. Or are they just giving their stock away, in a grand altruistic gesture? You're right, of course, that major food producers use different methods than you do in your own backyard; the main difference being that their methods work. Consistently well, and backed by the latest scientific data on efficiency, sustainability, and profitibility. As for 'cleaner water, greater biodiversity, and fewer pesticides" - Citation Needed. Pig shit is still pig shit, even if the sow was free-range. The main argument against organics has more to do with the way that one term allows for so much bullshit to sneak by under people's skepticism, unquestioned. As seems to be the case here.

  • @arduria538

    @arduria538

    10 жыл бұрын

    He never stated that he didn't like organic food - he's merely telling you, as a consumer, nutrition-wise, it isn't necessary to spend extra money on organic food.

  • @sunnyjim6505

    @sunnyjim6505

    10 жыл бұрын

    woobmonkey p You're more likely to find heirloom varieties at a farmers market than at a supermarket. I completely agree with you that "Certified Organic" isn't a cure for bullshit. Mostly, I was trying to get across the point (perhaps inelegantly) that it's a far more complicated discussion than just, "Organic isn't worth the money".

  • @woobmonkeyp3537

    @woobmonkeyp3537

    10 жыл бұрын

    sunny jim It's true that it's a complicated issue. The sad fact, for 'organic' supporters, is that the more one takes into account the complications, the less viable the 'organic' market is, as anything more than a cash grab. It's how confidence schemes work - convince your mark that they're knowlegeable, then collect the money!

  • @MrDuocheng
    @MrDuocheng10 жыл бұрын

    First!

  • @Zerkbern
    @Zerkbern10 жыл бұрын

    I don't eat organic produce because I think it might be more nutritious or contribute to improved health for me. Oh, I do think that I'd like to NOT consume chemicals given a choice. But this doesn't keep me up at night. I eat organic because I know it is healthier for THE PLANET. Conventional food production is demonstrably damaging to the planet. The examples are unfortunately endless and, ultimately, an unhealthy planet IS bad for my health. HCT doesn't address this issue at all with this narrow and intense focus on individual health. This is odd because HCT had no problem looking at more macro issues when discussing vaccines and "herd immunity". A little of that kind of focus on the larger health picture would have made this investigation more apt. As it is, this video is a very narrow view of the benefits (or lack thereof) of organic foods

  • @GarethField

    @GarethField

    10 жыл бұрын

    That's very interesting, and I share your enthusiasm for supporting the vibrancy of our ecosystems. Perhaps you could produce some references so we could get some real discussion going.

  • @GarethField

    @GarethField

    10 жыл бұрын

    Or you could realize that you sound like a fool in love, emphasis on fool, apologize, delete your comment, and save some face, or you could leave your ugly mug out there as an example to other fools in love, so that they can make better choices in their lives.

  • @RBuckminsterFuller

    @RBuckminsterFuller

    10 жыл бұрын

    "Chemicals".

  • @kgal1298

    @kgal1298

    10 жыл бұрын

    That's probably a whole other video. I mean it would probably take another 15 minutes to get into that, but most people eat organic based on health reasons which is the significance of the video.

  • @HamzaSayedAli

    @HamzaSayedAli

    10 жыл бұрын

    Yes! EVERYTHING IS CHEMICALS!!!! :D

  • @YogiliciousP
    @YogiliciousP10 жыл бұрын

    What is your beef against organic? Clearly there must be smthg behind it that you fail to mention the many many positive reasons to consume organic products over conventional. It also seems you're trying hard to skew the facts. I very much nearly unsubscribed, but I imagine I'll find more topics of value and don't expect 100% agreement with all things anyways. I don't feel I'll take the topics I'm unfamiliar with at your face value.

  • @Silverizael

    @Silverizael

    10 жыл бұрын

    What positive benefits, exactly? Because all he's doing is going off the scientific literature, which doesn't support that organic farming is any better whatsoever.

  • @nolanthiessen1073

    @nolanthiessen1073

    10 жыл бұрын

    "...you fail to mention the many many positive reasons to consume organic products over conventional." Citation required

  • @GalanDun

    @GalanDun

    10 жыл бұрын

    Nolan Thiessen I see this all the time. Organic is a wide range of things. Wood is organic, but I don't want to eat it.

  • @MyAccountNameSucks
    @MyAccountNameSucks10 жыл бұрын

    Nice, I've been following you for a week now. Pretty interesting how you put emphasis on studies.