Dr. Campbell, author of The China Study, defends low-fat vegan diets:
I am referring to a whole foods, plant-based diet that avoids added fat and processed and animal-based foods. This diet contains about 10-12 percent fat, sometimes pejoratively referred to as “extremely low fat”. Call it what you will, but this diet (also low in total protein, about 8-10 percent) produces, by comparison, “extremely low” incidences of sickness and disease. In fact, it now has been shown not just to prevent these illnesses but to treat them.
You can read the whole article here: http://www.huffingtonpost.com/t-colin-campbell/low-fat-diets-are-grossly_b_740543.html
He concludes by telling readers to “just try it.”