You wrote, "PLEASE do some research before trying to spread that destructive one-size-fits-all fairy tale."
Actually, I've read a TON of research on the matter.
I have a PhD in educational psychology, but I've done more research on nutrition than I ever
did on my doctoral dissertation. I actually spent a good chunk of one of my
sabbaticals reading nutrition research, and much of my research on education
revolves around how people get fooled by research, so I've applied what I
learned there to my study of nutrition.
Much of my research on education revolves around how people get fooled by research,
and I've applied what I learned there to my study of nutrition.
1) T1 diabetes is a very different
disease, and the overwhelming majority of Americans suffer from T2, not T1, so
a case study of someone with T1 isn't really relevant to our discussion here.
2) Although there may well be isolated
groups of peoples who evolved over time to thrive on a high-fat and
high-protein diet (due to local scarcity of carbs, e.g., on rocky Pacific
Islands), the vast majority of peoples on earth have gotten the majority of
their calories from grains and potatoes and some nuts for a very long time.
It's become increasingly clear that archaeologists in the past have
substantially overestimated the role of meat in diets of the past (due to
cultural bias and because bones last a long time and get unearthed later, but
plants decompose rapidly). One archaeologist recently stated
that it would be more accurate to describe humans as "starchivores,"
given the prominent role of starches in keeping us most peoples going.
3) Some of those populations who
supposedly were quite healthy on high protein and high fat diets were actually
not very healthy. For example, superficial expeditionary accounts described the
Inuit as healthy and free of heart disease, but actual medical examinations
revealed high rates of heart disease, osteoporosis, and early mortality.
4) If you are talking about the effects
of "carbs," you have to distinguish between whole food carbs and
processed foods and alcohol. People who get sick after switching to processed
carbs and alcohol don't really disprove my point.
5) Why are Americans confused about the
effects of carbs? First, people don't distinguish between whole food carbs and
processed foods that have lots of other junk in them, and the two categories
(eating cake vs. a sweet potato) have very different effects. Second, we eat
such an unhealthy diet that we have mislabeled as "low fat" diets that
would be more accurately labeled medium fat or even high fat. Most traditional
diets were around 6-20% calories from fat, but most Americans eat somewhere in
the neighborhood of 25-40% calories from fat, and the research studies
supposedly proving that low fat diets don't work are overwhelmingly on diets
with 20-37% calories from fat and lots of processed foods. If you don't believe
me, do what I've done--look up all the research studies in one of those
meta-analyses supposedly showing that "low-fat" diets don't work, and
see how much fat folks were eating. Those researchers are claiming that
low-fat diets don't work but they never actually studied the truly low-fat
diets that have characterized eating for most peoples for most of our history
6) Because we eat a diet so far from
the traditional diet for most of the peoples we descended from, we have come to
take as normal a diet that is far higher in fat and protein than was the diet
most of our ancestors ate, and seem unaware of what happens inside the body
when you eat too much fat and protein (This problem also plagues most nutrition
with serious restriction of range problems--there aren't enough people eating a
healthy diet to identify the real patterns between nutrition and diet). Back to
excess fat and protein: Too much animal protein ramps up cancer and kidney
disease, as well as other diseases. Too much fat and cholesterol causes
systemic damage. Because we're eating excess fat and cholesterol, the body
looks for dumping grounds for all that excess, and that excess fat and
cholesterol accumulates in the coronary arteries (heart disease),
arteries in the brain (dementia), nerve arteries (nerve pain and neuropathy),
cholesterol stones (gallbladder), arteries that should be supplying
nutrients to our disks (back pain, disk degeneration), in our muscle tissues
(diabetes), and of course, in the large amounts of visceral fat we carry
7) T2 Diabetes involves an interaction
effect between fat consumption and carb consumption, as excess fat in the
muscles reduces insulin sensitivity, decreases insulin secretion, and increases
insulin resistance. There are more 70 brief research-based videos on the
NutritionFacts website that relate to diabetes (and address reversing it [and
even reversing diabetic retinopathy] with a very low fat plant-based diet), but
here are some of the better ones:
Yes, obesity also contributes to diabetes, in part because of the aforementioned build-up of fat in muscles, and who are the leanest people? Vegans and those who eat the least fat (with BMI
and diabetes increasing with the more animal foods people eat).
From the PCRM website…
“Diets lower in total fat led to lower total body weights, compared with diets higher in fat, according to a new review published in the British Medical Journal. Researchers analyzed 43 studies with more than 180,000
participants from developed countries and determined that the lower the fat intake, the lower the body mass index (a measure of body weight adjusted for
height), the smaller the waist size, and the greater the weight loss. Lower fat intake was also associated with lower levels of total cholesterol, LDL
cholesterol, and blood pressure.”
Hooper L, Abdelhamid A, Moore HF, Douthwaite W, Skeaff CM, Summerbell CD. Effect of
reducing total fat intake on body weight: systematic review and meta-analysis
of randomized controlled trials and cohort studies. BMJ. Published online December 6, 2012.
And regarding BMI…
Diabetes Care. 2009 May;32(5):791-6. doi: 10.2337/dc08-1886. Epub 2009 Apr 7.
Type of vegetarian diet, body weight, and prevalence of type 2 diabetes.
Tonstad S, Butler T, Yan R, Fraser GE.
“Mean BMI was lowest in vegans (23.6 kg/m(2)) and incrementally higher in
lacto-ovo vegetarians (25.7 kg/m(2)), pesco-vegetarians (26.3 kg/m(2)),
semi-vegetarians (27.3 kg/m(2)), and nonvegetarians (28.8 kg/m(2)).”
As a middle-aged educational
psychologist, I dropped 75 pounds when I switched to a very low fat (~10%
calories from fat) plant-based diet that is largely whole food. Research
studies also show that the same diet can prevent and reverse heart disease, as
retired Cleveland Clinic doctor Caldwell Esselstyn has demonstrated in two
different studies. See http://www.dresselstyn.com/site/articles-studies/
The same diet works amazingly well for
preventing, treating, and even reversing a variety of major chronic diseases
(which is perhaps why it is recommended by Kaiser Permanente, America's largest
HMO) If you want an overview on how diet relates to major diseases, across
peoples and continents, I highly recommend Dr. Gregor's year-end reviews
Take care, -Karl