Dietary Goals for the United States (McGovern Report), Milestones
Standing
Concerns Description
Currently States In January 1977, after hearings on the national diet, the U.S. Senate Select Committee on Nutrition and Human Needs, chaired by Senator George McGovern, issued Dietary Goals for the United States, nutritional guidelines urging Americans to eat less fat, less cholesterol, less refined and processed sugar, and more complex carbohydrates and fiber, aimed at leading causes of death including heart disease, certain cancers and stroke. The committee's eat-less recommendations triggered strong pushback from the cattle, dairy, egg and sugar industries and from the American Medical Association. Under that pressure the committee issued a revised set of guidelines later in 1977 that adjusted the advice on salt and cholesterol and watered down the wording on meat consumption, an early example of the pattern this atlas records honestly elsewhere: dietary fat and cholesterol guidance has shifted repeatedly as evidence and pressure evolved, rather than settling once.
Genuinely contested on the science, not only the politics already described above: the American Medical Association warned in 1977 that the evidence for universal dietary goals was not conclusive, and a 2015 systematic review of the era's own randomized controlled trials (Harcombe et al., Open Heart) found they did not support the fat-reduction recommendation. See the linked open question.
Source Wikipedia: United States Senate Select Committee on Nutrition and Human Needs