What
they say about each other.
A.
The scientists
Willett:
Eat, Drink, and Be Healthy
only way to tell is to interlineate
ED&BH bibliography with Campbell bibliography, not worth the effort
chief publication of China study seems to
be Chen et al., Willett does not cite
Campbell
& Campbell: The China Study
Willett 271-275: "One scientist
especially took note . . ." spurious; carnivorous nurses, good
Willett 284: more fruits & veggies
better for cardio than cancer
Willett 286: Hu + Willett: "Although we
agree that overall dietary patterns are also important in determining disease
risk [ref], we believe that identification of associations with individual
nutrients should be the first step because it is the specific compounds or
groups of compounds that are fundamentally related to the [disease
process]. Specific components of diet
can be modified, and individuals and the food industry are actively doing
so. Understanding the health effects of
specific dietary changes, which Campbell refers to as 'reductionism,' is
therefore an important undertaking."
B.
The journalists
Pollan:
In Defense of Food
Willett 60: "Epidemiologist WCW if the
HSPH (a coauthor of the Hu paper) cites the increase in consumption of
polyunsaturated fats 'as a major factor, if not the most important factor, in
the decline of heart disease' observed in the seventies and eighties and calls
the campaign to reduce saturated fats in the diet one of the great public
health success stories of our time. And
so it would appear to be: We reduced our saturated fat intake, our cholesterol
levels fell, and many fewer people dropped dead of heart attacks. Whether the low-fat campaigners should take
the credit for this achievement is doubtful, however."
Willett 72, Campbell 72: "'Virtually this
entire cohort of nurses is consuming a high-risk diet,' according to
Campbell. That might explain why the
Nurses' Study has failed to detect significant benefits for many of the dietary
interventions it's looked at. In a
subject population that is eating a fairly standard Western diet, as this one
is, you're never going to capture the effects, good or bad, of more radically
different ways of eating. (In his book,
Campbell reports WW's personal response to this criticism: 'You may be right,
Colin, but people don't want to go there.'"
Willett 77: "It's not as though the
epidemiologists who develop and deploy FFQs [=food-frequency questionnaires]
are unaware of their limitations. Some
of them, like WW, strive heroically to repair the faulty data, developing
'energy adjustment' factors to correct for the fact that the calories reported
on surveys are invariably wrong and complicated 'measurement error' algorithms
to fix the errors in the twenty-four-hour recall surveys used to fix the errors
in the FFQ>"
Willett 88n: "According to WCW, only 3.1
percent of the Nurses' Health Study population could be described as following
a 'low risk' diet and lifestyle, which he defines as follows: nonsmoker,
body-mass index 9BMI) below 25 (the threshold for overweight), thirty minutes of
exercise a day, and a diet characterized by low intake of trans fat; high ratio
of polyunsaturated to saturated fats; high
whole-grain intake; two servings of fish
a week; recommended daily allowance of folic acid and at lease five grams of
alcohol a day. Based on fourteen years
of follow-up, Willett and his colleagues calculated that, had the entire cohort
adopted these behaviors, 80 percent of coronary heart disease; 90 percent of
type 2 diabetes, and more than 70 percent of color cancer cases could have been
avoided. This analysis suggests that the
worst effects of the Western diet can be avoided or reversed without leaving
civilization. Or, as Willett writes,
'the potential for disease prevention by modest dietary and lifestyle changes
that are readily compatible with life in the 21st century is
enormous.' From WCW, 'The Pursuit of
Optimal Diets" etc.
Willett 141-142: "You could argue that
the medical community's willingness to treat the broad contours of the Western
diet as a given is a reflection of its realism rather than its greed. 'People don't want to go there,' as WW
responded to the critic who asked him why the Nurses' Health Study didn't study
the benefits of more alternative diets."
Campbell 25-26: "According to TCC, a
Cornell nutritional biochemist who served on the panel, all of the human
population studies linking dietary fat to cancer actually showed that the
groups with higher cancer rates consumed not just more fats, but also more
animal foods and fewer plant foods as well.
'This meant that these cancers could just as easily be caused by animal
protein, dietary cholesterol, something else exclusively found in animal-based
foods, or a lack of plant-based foods,' Campbell wrote years later. The argument fell on deaf ears."
Campbell 68: "Unfortunately, the focus on
nutrients didn't tell us much about foods. Perhaps the culprit nutrient in meat and
dairy is the animal protein itself, as some researchers hypothesize. (The Cornell nutritionist TCC argues as much
in his recent book, The China Study.)
Campbell 71-72: Critics (notably CC)
point out that the sample is relatively uniform and is even more carnivorous
than the U.S. population as a whole."
Taubes 46: "So don't count on a
scientific Aleksandr Solzhenitsyn to show up and expose the whole fat paradigm
as a historical disaster. The closest
thing to such a figure we have had is not a scientist but a science journalist
named Gary Taubes, who for the last decade has been blowing the whistle on the
science behind the low-far campaign. In
a devastating series of articles and an important new book called Good Calories, Bad Calories, Taubes has
all but demolished the whole lipid hypothesis, demonstrating just how little
scientific backing it had from the very beginning.
Taubes 48: "But as Taubes has documented.
the attitude on the committee [the Senate Select Committee on Nutrition and
Human Needs] was that even if all the data weren't hard as rock quite yet, what
would be the harm in getting Americans to cut down on dietary fats?"
Taubes 59n: GT described the developing
carbohydrate hypothesis at great length in Good
Calories, Bad Calories. According to
the hypothesis, most of the damage to our health that has been wrongly
attributed to fats for the past half century – heart disease, obesity, cancer,
diabetes, and so on – can rightly be blamed on refined carbohydrates. But the healthy skepticism Taubes brought to
the lipid hypothesis is nowhere in evidence when he writes about the (also
unproven) carbohydrate hypothesis. Even
if refined carbohydrates do represent a more serious threat to health than
dietary fat, to dwell on any one nutrient to the exclusion of all others is to
commit the same reductionist error that the lipophobes did. Indeed, Taubes is so single-minded in his
demonization of the carbohydrate that he overlooks several other possible
explanations for the deleterious effects of the Western diet, including
deficiencies of omega-3s and micronutrients from plants. He also downplays the risks (to health as
well as eating pleasure) of the high-protein Atkins diet that the carbohydrate
hypothesis implies is a sound way to eat.
As its title suggests, GC,BC,
valuable as it is, does not escape the confines of nutritionism."
Taubes 69: "As GT points out, it's
difficult to design a dietary trial of something like saturated fat because as
soon as you remove it from the trial diet, either you have dramatically reduced
the calories in that diet or you have replaced the saturated fat with something
else: other fats (but which ones?), or carbohydrates (but what kind?), or
protein. Whatever you do, you've
introduced a second variable into the experiment, so you will not be able to
attribute any observed effect strictly to the absence of saturated fat."