The trial, known as the Women’s Health Initiative, was launched in the early 1990s, and the results were reported in 2006. Once again, it failed to confirm the hypothesis. The roughly twenty thousand women in the trial who had been counseled to consume low-fat diets (and to eat more fruits, vegetables, and whole grains, and less red meat) saw no health benefits compared with the women who had been given no dietary instructions whatsoever.
If you look through nearly all nutritional advice the only thing that seems to tie them together is that we should all be eating more vegetables.