7 ms·

As a lot of things here in Brazil, this looks like not very thought through. "When you consider the fact that Brazilian diets are commonly high in fat – meat i

by soneca 12y ago

As a lot of things here in Brazil, this looks like not very thought through. "When you consider the fact that Brazilian diets are commonly high in fat – meat is often eaten for all three meals of the day – it’s no surprise that hypertension, diabetes, cancer, obesity and cardiovascular disease are on the rise." What about all the serious recent research showing little correlation between fat in diet and all the diseases? EDIT: also, I would add that meat is often eaten in upper classes meals. Meat is a luxury for the better part of our population. Actually, I believe that there is research showing that physical activities has, at the most, an indirect effect on obesity. Although I can't cite any study here. Another strange passage: "What really convinces politicians and funders is evidence. " Not sure this is true, in Brazil or any other democracy. What really convinces politicians are projects that generate good publicity. Which this one proved it can. Said that, I think this is indeed a good project and it is a good thing that it is running. But I am inclined to say that the answer to "Can a grand vision of 4,000 free public gyms overcome inequality and fight Brazil’s health crisis? " is no.

jerf 12y ago
"Said that, I think this is indeed a good project and it is a good thing that it is running." But is it a billion dollars of good? Especially if the most likely outcome obtains and these turn into 4,000 underused and eventually neglected gyms, eventually resulting in almost all 4,000 being sold at fire sale prices once the government's priorities move on?
- soneca 12y ago
  Hard to say, but if I were to bet, I would bet your predicted outcome is pretty accurate.
  - dkural 12y ago
    There isn't much to "sell". They're metal+concrete installations.
- arrrg 12y ago
  The article seems to indicate that the gyms are actually used. Even better, they seem to reclaim previously neglected and unsafe public space. That seems like a good use of public space to me, like a soccer field or a well-maintained park, even irrespective of any health benefits. Of course, lots can go wrong in the actual implementation (clever uses for public spaces are notoriously tricky and hard to get right), but this doesn’t seem like a bad idea to me.
  - mtdewcmu 12y ago
    Investing in a community is a gesture of goodwill. That could be the major legacy of this.
lotsofmangos 12y ago
What really convinces politicians are projects that generate good publicity. I used to think that counted, but then I noticed that most politicians regularly support projects that generate appalling publicity, so what really convinces politicians most of the time is probably just bribes and prostitutes.
- reversal 12y ago
  A "model politician" in this day and age seems to refer to one Silvio Berlusconi
neonhomer 12y ago
Completely agree. As usual most people blame meat rather than the processed sugar content. It’s also cheaper to eat badly because processed foods that are high in fats and sugars are often cheaper than fresh produce. This is just like the US, where it's cheaper to eat BAD fats and sugar-laden food.
- JoeAltmaier 12y ago
  I thought the good/bad fat controversy had been laid to rest? Fat is good for you, insofar as it doesn't contribute to obesity which is the real demon.
  - lackbeard 12y ago
    It seems that the low-carb/paleo alliance is turning that controversy on on its head by theorizing that the polyunsaturated vegetable oils (e.g. corn, canola, peanut, soybean) are really bad for you. http://www.fathead-movie.com/index.php/2013/02/07/surprise-surprise-animal-fat-beats-vegetable-oil-in-rediscovered-study/ http://www.fathead-movie.com/index.php/2013/02/07/surprise-s...
  - jessaustin 12y ago
    ...obesity which is the real demon. I've heard that, but then I've also heard that moderate obesity (obviously not 2x "normal" weight, but say 1.25x) is actually associated with longer lifetimes than normal weight. There doesn't actually seem to be much consensus in these areas.
    - tormeh 12y ago
      I thought there were multiple tentative results showing that starvation (to the degree that menstruation etc. stops) increases life expectancy. Anyway, the consensus is that obesity is very bad, but I'm not sure if 1.25x is obese.
zeta_ 12y ago
I don't know where you live, but here in RS meat is definitely not a luxury. And I speak as poor person that knows people that gain less than $500 per month.
- yuriks 12y ago
  The RS has historically had more plentiful meat, thus the popularity of churrasco here. Also, while I'm not very well travelled, I've had people from the rest of the country react with shocked gasps when I mentioned that I drink tap water at home, turns out the situation is quite different in the northern areas. As someone once told me: "a relative travelled to the RS once, he told me it is almost like a different country."
- flaviojuvenal 12y ago
  Meat is not a luxury in Recife, one of the cities mentioned in the article. Here, even low income families eat meat every day, despite being low quality meat. Red meat is more expensive, but chicken is very common.
- personlurking 12y ago
  As a foreigner who was once earning R$500/mo ($250 at the time) in rural Brazil, I support this message.
- oscargrouch 12y ago
  > Meat is a luxury for the better part of our population Yeah, i dont know in what Brazil the OP is living in.. meat is pretty much as "rice and beans" even for the poor ones.. and in no way is a luxury item Maybe by meat he means "Picanha" and the most noble parts.. which is indeed expensive and not a "everyday meat".. Note: i was born in the south, raised be "churrascos".. and now live in northeast.. considered by the south brazillians like low-income.. but the reality.. is far from truth.. This country is very big, and we need to know ourselves better.. the old rules and believes no more applies.. (Northeast is now in a constant uprise economically while south and southeast are pratically economically frozen)
stonemetal 12y ago
it’s no surprise that hypertension, diabetes, cancer, obesity and cardiovascular disease are on the rise. Did Brazilian diets change recently to include a bunch of meat? If not then "on the rise" should be surprising. If there was no change in diet and no change in diet related disease levels then it would be unsurprising. But changes in diet related diseases without a change in diet should be somewhat surprising or at least hint that some other factor has changed.
- nandemo 12y ago
  > Did Brazilian diets change recently to include a bunch of meat? Yes, for some values of "recently" (past 20 years). We had a sort of economic renaissance in the 90s, when the government finally managed to control hyperinflation amongst other reforms (slashing tariffs, privatization of several state companies, etc). One of the consequences is that people started eating more meat. The chart in this page shows the chicken consumption per capita (in kg): http://revistaepoca.globo.com/Revista/Epoca/0,,EDG51460-6009,00-O+ANO+DO+FRANGO.html http://revistaepoca.globo.com/Revista/Epoca/0,,EDG51460-6009...
  - daliusd 12y ago
    Do you have statistics for pork and beef. Red meat statistics is more interesting and relevant than poultry.
- eitally 12y ago
  It's the same as has happened in other places: processed foods and restaurants have taken over. Brazilians are bigger, fatter, and more sedentary than they used to be (just like Americans, Chinese, etc).
namenotrequired 12y ago
One more data point, this one from Santa Catarina, where my gf lives with her single mom, they're definitely not upper class but eat meat about twice a day.
- personlurking 12y ago
  Yes, I've had personal experience with a lot of different types of Brazilians, in different parts of Brazil, and I'd say eating meat is no longer a middle-upper class thing as it might have been a decade ago.
PerfectElement 12y ago
>>What about all the serious recent research showing little correlation between fat in diet and all the diseases? Do you mean the few studies coming from the Weston A Price Foundation reverberated by thousands of paleo-fad blogs/books? The ones that have been refuted over and over by the real experts? Despite all the headlines telling you that bacon is healthy, the lipid hypothesis is still the scientific consensus: http://en.wikipedia.org/wiki/Lipid_hypothesis#Widespread_acceptance http://en.wikipedia.org/wiki/Lipid_hypothesis#Widespread_acc... >> I would add that meat is often eaten in upper classes meals. Meat is a luxury for the better part of our population. That's simply not true. I'm originally from Brazil and eating meat is not an upper class thing. Animal products are consumed in luxurious gated communities and in favelas alike. It's part of the culture. Unless you're below the poverty line you eat meat daily in Brazil. And those below the poverty line are not the ones dying from heart disease.
- secabeen 12y ago
  Every study cited in that wikipedia section is at least 10 years old, and the headline survey is 35-years old.
  - stfu 12y ago
    And? Do you think smoking became all of the sudden healthy again over the last 50 years since they discovered it is a main cause for cancer? Unless there is a reasonable expectation that things have changed, studies are valid and do not get invalidated by age. Considering that a decent study might take easily a year to run and another year to get through the peer review process, 10 years are actually rather recent. I've seen papers (although in a different field) that in 2013 describe discoveries from the late 199x as "recent".
    - daliusd 12y ago
      Your comparison with smoking is completely unfair. The problem is that we have scientific proof that smoking tobacco causes lung cancer (the emphasis is on "causes"). The problem with nutritional science is that we only have correlation data (or at least it looks like so).
mtdewcmu 12y ago
Even the connection between exercise and weight loss can be questioned. I highly doubt that gyms will solve the obesity problem. That said, I'm sure the Brazilian people will appreciate the gyms.
scythe 12y ago
>When you consider the fact that Brazilian diets are commonly high in fat – meat is often eaten for all three meals of the day – it’s no surprise that hypertension, diabetes, cancer, obesity and cardiovascular disease are on the rise. I'm sad to report that I downvoted most of the comments replying to this line because they are not constructive: they fail to provide support for their claims, but their only claim is that other claims are unsupported. It's just short of trolling. I'd really, really like not to argue this point in this thread, though. TFA is about a gym construction project, not a dietary intervention, and in any case, the role of "meat" -- which includes many, many different foods -- in the human diet is a complex scientific question which cannot be given a satisfactory treatment in a paragraph. Instead, I hope to provide here useful, accurate resources that allow interested HNers to learn more about the topic. I preemptively acknowledge that I am not a qualified expert and there are considerable differences of opinion among experts. Let's start with "the problem": http://www.sciencedirect.com/science/article/pii/S0002822304000112 http://www.sciencedirect.com/science/article/pii/S0002822304... "Dietary patterns and health outcomes": "A systematic review of the literature on dietary patterns [...] was conducted. [...] Both of the currently used approaches for extracting dietary patterns have limitations, are subject to dietary measurement errors, and have not generated new diet and disease hypotheses." Unfortunately, it turns out nutritional science is hard. Arguing about the age of studies on Wikipedia doesn't help us learn much. The largest study ever conducted on red meat consumption was the European Prospective Investigation into Cancer and Nutrition: https://www.biomedcentral.com/1741-7015/11/63/abstract https://www.biomedcentral.com/1741-7015/11/63/abstract I'm not going to post the result here: read for yourself. The fulltext is freely available. Red meat probably increases the risk of colon cancer: http://preventcancer.aicr.org/site/PageServer?pagename=recommendations_05_red_meat http://preventcancer.aicr.org/site/PageServer?pagename=recom... In the mid-20th century, there were concerns that things like phytate might be bad for you by sequestering nutrients. This one-time dietary "villain" turns out to prevent colon cancer: http://www.ncbi.nlm.nih.gov/pubmed/8383315 http://www.ncbi.nlm.nih.gov/pubmed/8383315 These effects are both suspected to relate to mineral availability in the small intestine, or, as the researchers state, "Phytic acid forms chelates with various metals and suppresses damaging iron-catalyzed redox reactions." Red meat contains a lot of iron, hence, cancer. Be careful reading nutrition studies, they can report strange things which may be spurious correlations. This Harvard School of Public Health study finds that chicken without skin is correlated with bladder cancer, but chicken with skin is not: http://ajcn.nutrition.org/content/84/5/1177.full http://ajcn.nutrition.org/content/84/5/1177.full I don't understand it either. It is common informally to conflate the constellation of diseases represented by "cardiovascular disease" and that represented by "diabetes and metabolic syndrome". While there is a great deal of literature regarding the relation of meat consumption to the former, it is almost never even mentioned in connection with the latter: http://en.wikipedia.org/wiki/Metabolic_syndrome#Etiology http://en.wikipedia.org/wiki/Metabolic_syndrome#Etiology Quick, do these studies contradict each other? http://www.dur-a-avaler.com/wp-content/uploads/2013/02/Red%20meat%20consumption%20An%20overview%20of%20the%20risks%20and%20benefits.pdf http://www.dur-a-avaler.com/wp-content/uploads/2013/02/Red%2... http://ajcn.nutrition.org/content/94/4/1088.full.pdf http://ajcn.nutrition.org/content/94/4/1088.full.pdf Answer: no. Whether red meat is healthier than "X" (here "nuts, dairy, and whole grains") is not the same question as whether it is healthy "in isolation", which really means "relative to other dietary constituents", which often include plenty of sugar and refined grains. Nuts, in particular, are known to be very healthy: http://scholar.google.com/scholar?q=nut+consumption+health&btnG=&hl=en&as_sdt=2005&sciodt=0%2C5&cites=9492863935290104140&scipsc= http://scholar.google.com/scholar?q=nut+consumption+health&b... It's very, very easy to throw things like this at each other without really understanding the research you're looking at. As for obesity, it turns out that fat both causes and prevents obesity: http://ajcn.nutrition.org/content/68/6/1157.short http://ajcn.nutrition.org/content/68/6/1157.short http://inspire.stat.ucla.edu/unit_15/NEJM2082.pdf http://inspire.stat.ucla.edu/unit_15/NEJM2082.pdf http://portalsaudebrasil.com/artigospsb/obes078.pdf http://portalsaudebrasil.com/artigospsb/obes078.pdf http://phdres.caregate.net/curriculum/pdf-files/nejm2k3-2074.pdf http://phdres.caregate.net/curriculum/pdf-files/nejm2k3-2074... Note from the second study: "Adherence was poor and attrition was high in both groups." The most effective diet is the one you actually follow. It should also be noted that the pro-fat studies tend to be experimental, while the anti-fat studies tend to be longitudinal. The recent prevalence of large nutritional experiments represents, in my opinion, increased attention (and concomitant funding) directed towards nutrition research as obesity and associated metabolic syndrome have become a pandemic. Shit be up in the air, yo. Anyone who claims to understand nutrition is a liar. There are, however, low-hanging fruit: sugar is bad, vegetables are good, nuts are good, bologna causes cancer. There are various psychological analyses of diet patterns, but a common theme is that if you are constantly hungry you will give up on your diet or start eating more. I hope this is not too controversial: hunger causes eating. Try to pick foods that generate satiety.
voidlogic 12y ago
>What about all the serious recent research showing little correlation between fat in diet and all the diseases? I don't think that is the best way to interpret them, the way I read the gist of recent research is roughly: 0. Calories you didn't eat are better than: 1. Calories from protein are better than: 2. Calories from mono-unsat. fat are better than: 3. Calories from sat. fat are better than: 4. Calories from poly-unsat. fat are better than: 5. Calories from complex carbs are better than: 6. Calories from simple carbs are better than: 7. Calories from trans. fat are better than: But nothing is better for then the calorie you didn't eat (assuming you have met your caloric needs for the day).
- Evgeny 12y ago
  2. Calories from mono-unsat. fat are better than: 3. Calories from sat. fat are better than: 4. Calories from poly-unsat. fat are better than: I'm wondering about the reasoning for this particular order. There are different arguments, including the one that sat. fat is the best, as it is the least reactive: it is already fully saturated, while mono and poly have still potential to acquire more hydrogens. This is why some people prefer cooking with animal fat: they assume it is more "inert" under heating. Anyway, wouldn't it make sense to order them in order of saturation, either sat > mono > poly, or in reverse, poly > mono > sat?
  - voidlogic 12y ago
    My understanding is monounsaturated fats are known to be cardiovascularly protective and polyunsaturated are less stable, hence the ordering.
dragonwriter 12y ago
> I believe that there is research showing that physical activities has, at the most, an indirect effect on obesity. Whether an effect is "indirect" or not is an orthogonal consideration to whether it is significant. Most effects are indirect on close enough analysis (gunshot wounds other than those inflicting direct trauma to the central nervous system only indirectly produce death, but that's doesn't mean getting shot in the heart has an insignificant effect on your chance of dying.)

by soneca 12y ago

jerf 12y ago

"Said that, I think this is indeed a good project and it is a good thing that it is running." But is it a billion dollars of good? Especially if the most likely outcome obtains and these turn into 4,000 underused and eventually neglected gyms, eventually resulting in almost all 4,000 being sold at fire sale prices once the government's priorities move on?

soneca 12y ago
Hard to say, but if I were to bet, I would bet your predicted outcome is pretty accurate.
- dkural 12y ago
  There isn't much to "sell". They're metal+concrete installations.
arrrg 12y ago
The article seems to indicate that the gyms are actually used. Even better, they seem to reclaim previously neglected and unsafe public space. That seems like a good use of public space to me, like a soccer field or a well-maintained park, even irrespective of any health benefits. Of course, lots can go wrong in the actual implementation (clever uses for public spaces are notoriously tricky and hard to get right), but this doesn’t seem like a bad idea to me.
- mtdewcmu 12y ago
  Investing in a community is a gesture of goodwill. That could be the major legacy of this.

lotsofmangos 12y ago

What really convinces politicians are projects that generate good publicity. I used to think that counted, but then I noticed that most politicians regularly support projects that generate appalling publicity, so what really convinces politicians most of the time is probably just bribes and prostitutes.

reversal 12y ago
A "model politician" in this day and age seems to refer to one Silvio Berlusconi

neonhomer 12y ago

Completely agree. As usual most people blame meat rather than the processed sugar content. It’s also cheaper to eat badly because processed foods that are high in fats and sugars are often cheaper than fresh produce. This is just like the US, where it's cheaper to eat BAD fats and sugar-laden food.

JoeAltmaier 12y ago
I thought the good/bad fat controversy had been laid to rest? Fat is good for you, insofar as it doesn't contribute to obesity which is the real demon.
- lackbeard 12y ago
  It seems that the low-carb/paleo alliance is turning that controversy on on its head by theorizing that the polyunsaturated vegetable oils (e.g. corn, canola, peanut, soybean) are really bad for you. http://www.fathead-movie.com/index.php/2013/02/07/surprise-surprise-animal-fat-beats-vegetable-oil-in-rediscovered-study/ http://www.fathead-movie.com/index.php/2013/02/07/surprise-s...
- jessaustin 12y ago
  ...obesity which is the real demon. I've heard that, but then I've also heard that moderate obesity (obviously not 2x "normal" weight, but say 1.25x) is actually associated with longer lifetimes than normal weight. There doesn't actually seem to be much consensus in these areas.
  - tormeh 12y ago
    I thought there were multiple tentative results showing that starvation (to the degree that menstruation etc. stops) increases life expectancy. Anyway, the consensus is that obesity is very bad, but I'm not sure if 1.25x is obese.

zeta_ 12y ago

I don't know where you live, but here in RS meat is definitely not a luxury. And I speak as poor person that knows people that gain less than $500 per month.

yuriks 12y ago
The RS has historically had more plentiful meat, thus the popularity of churrasco here. Also, while I'm not very well travelled, I've had people from the rest of the country react with shocked gasps when I mentioned that I drink tap water at home, turns out the situation is quite different in the northern areas. As someone once told me: "a relative travelled to the RS once, he told me it is almost like a different country."
flaviojuvenal 12y ago
Meat is not a luxury in Recife, one of the cities mentioned in the article. Here, even low income families eat meat every day, despite being low quality meat. Red meat is more expensive, but chicken is very common.
personlurking 12y ago
As a foreigner who was once earning R$500/mo ($250 at the time) in rural Brazil, I support this message.
oscargrouch 12y ago
> Meat is a luxury for the better part of our population Yeah, i dont know in what Brazil the OP is living in.. meat is pretty much as "rice and beans" even for the poor ones.. and in no way is a luxury item Maybe by meat he means "Picanha" and the most noble parts.. which is indeed expensive and not a "everyday meat".. Note: i was born in the south, raised be "churrascos".. and now live in northeast.. considered by the south brazillians like low-income.. but the reality.. is far from truth.. This country is very big, and we need to know ourselves better.. the old rules and believes no more applies.. (Northeast is now in a constant uprise economically while south and southeast are pratically economically frozen)

stonemetal 12y ago

it’s no surprise that hypertension, diabetes, cancer, obesity and cardiovascular disease are on the rise. Did Brazilian diets change recently to include a bunch of meat? If not then "on the rise" should be surprising. If there was no change in diet and no change in diet related disease levels then it would be unsurprising. But changes in diet related diseases without a change in diet should be somewhat surprising or at least hint that some other factor has changed.

nandemo 12y ago
> Did Brazilian diets change recently to include a bunch of meat? Yes, for some values of "recently" (past 20 years). We had a sort of economic renaissance in the 90s, when the government finally managed to control hyperinflation amongst other reforms (slashing tariffs, privatization of several state companies, etc). One of the consequences is that people started eating more meat. The chart in this page shows the chicken consumption per capita (in kg): http://revistaepoca.globo.com/Revista/Epoca/0,,EDG51460-6009,00-O+ANO+DO+FRANGO.html http://revistaepoca.globo.com/Revista/Epoca/0,,EDG51460-6009...
- daliusd 12y ago
  Do you have statistics for pork and beef. Red meat statistics is more interesting and relevant than poultry.
eitally 12y ago
It's the same as has happened in other places: processed foods and restaurants have taken over. Brazilians are bigger, fatter, and more sedentary than they used to be (just like Americans, Chinese, etc).

namenotrequired 12y ago

One more data point, this one from Santa Catarina, where my gf lives with her single mom, they're definitely not upper class but eat meat about twice a day.

personlurking 12y ago
Yes, I've had personal experience with a lot of different types of Brazilians, in different parts of Brazil, and I'd say eating meat is no longer a middle-upper class thing as it might have been a decade ago.

PerfectElement 12y ago

>>What about all the serious recent research showing little correlation between fat in diet and all the diseases? Do you mean the few studies coming from the Weston A Price Foundation reverberated by thousands of paleo-fad blogs/books? The ones that have been refuted over and over by the real experts? Despite all the headlines telling you that bacon is healthy, the lipid hypothesis is still the scientific consensus: http://en.wikipedia.org/wiki/Lipid_hypothesis#Widespread_acceptance http://en.wikipedia.org/wiki/Lipid_hypothesis#Widespread_acc... >> I would add that meat is often eaten in upper classes meals. Meat is a luxury for the better part of our population. That's simply not true. I'm originally from Brazil and eating meat is not an upper class thing. Animal products are consumed in luxurious gated communities and in favelas alike. It's part of the culture. Unless you're below the poverty line you eat meat daily in Brazil. And those below the poverty line are not the ones dying from heart disease.

secabeen 12y ago
Every study cited in that wikipedia section is at least 10 years old, and the headline survey is 35-years old.
- stfu 12y ago
  And? Do you think smoking became all of the sudden healthy again over the last 50 years since they discovered it is a main cause for cancer? Unless there is a reasonable expectation that things have changed, studies are valid and do not get invalidated by age. Considering that a decent study might take easily a year to run and another year to get through the peer review process, 10 years are actually rather recent. I've seen papers (although in a different field) that in 2013 describe discoveries from the late 199x as "recent".
  - daliusd 12y ago
    Your comparison with smoking is completely unfair. The problem is that we have scientific proof that smoking tobacco causes lung cancer (the emphasis is on "causes"). The problem with nutritional science is that we only have correlation data (or at least it looks like so).

mtdewcmu 12y ago

Even the connection between exercise and weight loss can be questioned. I highly doubt that gyms will solve the obesity problem. That said, I'm sure the Brazilian people will appreciate the gyms.

scythe 12y ago

>When you consider the fact that Brazilian diets are commonly high in fat – meat is often eaten for all three meals of the day – it’s no surprise that hypertension, diabetes, cancer, obesity and cardiovascular disease are on the rise. I'm sad to report that I downvoted most of the comments replying to this line because they are not constructive: they fail to provide support for their claims, but their only claim is that other claims are unsupported. It's just short of trolling. I'd really, really like not to argue this point in this thread, though. TFA is about a gym construction project, not a dietary intervention, and in any case, the role of "meat" -- which includes many, many different foods -- in the human diet is a complex scientific question which cannot be given a satisfactory treatment in a paragraph. Instead, I hope to provide here useful, accurate resources that allow interested HNers to learn more about the topic. I preemptively acknowledge that I am not a qualified expert and there are considerable differences of opinion among experts. Let's start with "the problem": http://www.sciencedirect.com/science/article/pii/S0002822304000112 http://www.sciencedirect.com/science/article/pii/S0002822304... "Dietary patterns and health outcomes": "A systematic review of the literature on dietary patterns [...] was conducted. [...] Both of the currently used approaches for extracting dietary patterns have limitations, are subject to dietary measurement errors, and have not generated new diet and disease hypotheses." Unfortunately, it turns out nutritional science is hard. Arguing about the age of studies on Wikipedia doesn't help us learn much. The largest study ever conducted on red meat consumption was the European Prospective Investigation into Cancer and Nutrition: https://www.biomedcentral.com/1741-7015/11/63/abstract https://www.biomedcentral.com/1741-7015/11/63/abstract I'm not going to post the result here: read for yourself. The fulltext is freely available. Red meat probably increases the risk of colon cancer: http://preventcancer.aicr.org/site/PageServer?pagename=recommendations_05_red_meat http://preventcancer.aicr.org/site/PageServer?pagename=recom... In the mid-20th century, there were concerns that things like phytate might be bad for you by sequestering nutrients. This one-time dietary "villain" turns out to prevent colon cancer: http://www.ncbi.nlm.nih.gov/pubmed/8383315 http://www.ncbi.nlm.nih.gov/pubmed/8383315 These effects are both suspected to relate to mineral availability in the small intestine, or, as the researchers state, "Phytic acid forms chelates with various metals and suppresses damaging iron-catalyzed redox reactions." Red meat contains a lot of iron, hence, cancer. Be careful reading nutrition studies, they can report strange things which may be spurious correlations. This Harvard School of Public Health study finds that chicken without skin is correlated with bladder cancer, but chicken with skin is not: http://ajcn.nutrition.org/content/84/5/1177.full http://ajcn.nutrition.org/content/84/5/1177.full I don't understand it either. It is common informally to conflate the constellation of diseases represented by "cardiovascular disease" and that represented by "diabetes and metabolic syndrome". While there is a great deal of literature regarding the relation of meat consumption to the former, it is almost never even mentioned in connection with the latter: http://en.wikipedia.org/wiki/Metabolic_syndrome#Etiology http://en.wikipedia.org/wiki/Metabolic_syndrome#Etiology Quick, do these studies contradict each other? http://www.dur-a-avaler.com/wp-content/uploads/2013/02/Red%20meat%20consumption%20An%20overview%20of%20the%20risks%20and%20benefits.pdf http://www.dur-a-avaler.com/wp-content/uploads/2013/02/Red%2... http://ajcn.nutrition.org/content/94/4/1088.full.pdf http://ajcn.nutrition.org/content/94/4/1088.full.pdf Answer: no. Whether red meat is healthier than "X" (here "nuts, dairy, and whole grains") is not the same question as whether it is healthy "in isolation", which really means "relative to other dietary constituents", which often include plenty of sugar and refined grains. Nuts, in particular, are known to be very healthy: http://scholar.google.com/scholar?q=nut+consumption+health&btnG=&hl=en&as_sdt=2005&sciodt=0%2C5&cites=9492863935290104140&scipsc= http://scholar.google.com/scholar?q=nut+consumption+health&b... It's very, very easy to throw things like this at each other without really understanding the research you're looking at. As for obesity, it turns out that fat both causes and prevents obesity: http://ajcn.nutrition.org/content/68/6/1157.short http://ajcn.nutrition.org/content/68/6/1157.short http://inspire.stat.ucla.edu/unit_15/NEJM2082.pdf http://inspire.stat.ucla.edu/unit_15/NEJM2082.pdf http://portalsaudebrasil.com/artigospsb/obes078.pdf http://portalsaudebrasil.com/artigospsb/obes078.pdf http://phdres.caregate.net/curriculum/pdf-files/nejm2k3-2074.pdf http://phdres.caregate.net/curriculum/pdf-files/nejm2k3-2074... Note from the second study: "Adherence was poor and attrition was high in both groups." The most effective diet is the one you actually follow. It should also be noted that the pro-fat studies tend to be experimental, while the anti-fat studies tend to be longitudinal. The recent prevalence of large nutritional experiments represents, in my opinion, increased attention (and concomitant funding) directed towards nutrition research as obesity and associated metabolic syndrome have become a pandemic. Shit be up in the air, yo. Anyone who claims to understand nutrition is a liar. There are, however, low-hanging fruit: sugar is bad, vegetables are good, nuts are good, bologna causes cancer. There are various psychological analyses of diet patterns, but a common theme is that if you are constantly hungry you will give up on your diet or start eating more. I hope this is not too controversial: hunger causes eating. Try to pick foods that generate satiety.

voidlogic 12y ago

>What about all the serious recent research showing little correlation between fat in diet and all the diseases? I don't think that is the best way to interpret them, the way I read the gist of recent research is roughly: 0. Calories you didn't eat are better than: 1. Calories from protein are better than: 2. Calories from mono-unsat. fat are better than: 3. Calories from sat. fat are better than: 4. Calories from poly-unsat. fat are better than: 5. Calories from complex carbs are better than: 6. Calories from simple carbs are better than: 7. Calories from trans. fat are better than: But nothing is better for then the calorie you didn't eat (assuming you have met your caloric needs for the day).

Evgeny 12y ago
2. Calories from mono-unsat. fat are better than: 3. Calories from sat. fat are better than: 4. Calories from poly-unsat. fat are better than: I'm wondering about the reasoning for this particular order. There are different arguments, including the one that sat. fat is the best, as it is the least reactive: it is already fully saturated, while mono and poly have still potential to acquire more hydrogens. This is why some people prefer cooking with animal fat: they assume it is more "inert" under heating. Anyway, wouldn't it make sense to order them in order of saturation, either sat > mono > poly, or in reverse, poly > mono > sat?
- voidlogic 12y ago
  My understanding is monounsaturated fats are known to be cardiovascularly protective and polyunsaturated are less stable, hence the ordering.

dragonwriter 12y ago

> I believe that there is research showing that physical activities has, at the most, an indirect effect on obesity. Whether an effect is "indirect" or not is an orthogonal consideration to whether it is significant. Most effects are indirect on close enough analysis (gunshot wounds other than those inflicting direct trauma to the central nervous system only indirectly produce death, but that's doesn't mean getting shot in the heart has an insignificant effect on your chance of dying.)