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Historical Event

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February 1, 1977

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“We Cannot Afford to Wait" vs “serious reservations” about the “divergence of scientific opinion on whether dietary change can help the heart.”

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“We Cannot Afford to Wait”

In the late 1970s in America, the idea that a plant-based diet might be the best for health as well as the most historically authentic was just entering the popular consciousness. Active efforts to demonize saturated fat had been underway for more than fifteen years by that time, and we’ve seen how the McGovern committee’s staff were in short order persuaded by these ideas. Even so, the draft report that Mottern wrote for the McGovern committee sparked an uproar—predictably—from the meat, dairy, and egg producers. They sent representatives to McGovern’s office and insisted that he hold additional hearings. Under pressure from these lobbies, McGovern’s staff carved out an exception for lean meats, which Americans could be advised to eat. Thus, Dietary Goals recommended that Americans increase poultry and fish while cutting back on red meat, butterfat, eggs, and whole milk. In the language of macronutrients, this meant advising Americans to reduce total fat, saturated fat, dietary cholesterol, sugar, and salt while increasing carbohydrate consumption to between 55 percent and 60 percent of daily calories.

While Mottern would have liked the final report to advise against meat altogether, some of the senators on the committee were not so unequivocally confident about their ability to weigh in on matters of nutritional science. The ranking minority member, Charles H. Percy from Illinois, wrote in the final Dietary Goals report that he and two other senators had “serious reservations” about the “divergence of scientific opinion on whether dietary change can help the heart.” They described the “polarity” of views among well-known scientists such as Jerry Stamler and Pete Ahrens and noted that leaders in government, including no less than the head of the NHLBI as well as the undersecretary of health, Theodore Cooper, had urged restraint before making recommendations to the general public.

Yet this hesitation turned out to be too little too late to stop the momentum that Mottern’s report had set in motion. Dietary Goals revived the same argument that Keys and Stamler had used before: that now was the time to take action on an urgent public health problem. “We cannot afford to await the ultimate proof before correcting trends we believe to be detrimental,” said the Senate report.

So it was that Dietary Goals, compiled by one interested layperson, Mottern, without any formal review, became arguably the most influential document in the history of diet and disease. Following publication of Dietary Goals by the highest elective body in the land, an entire government and then a nation swiveled into gear behind its dietary advice. “It has stood the test of time, and I feel very proud of it, as does McGovern,” Marshall Matz, general counsel of the McGovern committee, told me thirty years later.

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Dietary Guidelines
Dietary guidelines are evidence-based recommendations that provide guidance on healthy eating patterns and lifestyle choices to promote overall health and prevent chronic diseases. These guidelines are typically developed by government agencies or expert committees and are updated periodically based on the latest scientific research. This site heavily questions basic assumptions within the dietary guidelines and shows conflicts of interest in their creation.
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