Kennedy's controversial push to end the 'war on saturated fats' with new dietary guidelines
Health and Human Services (HHS) Secretary Robert F. Kennedy Jr. is set to challenge the long-standing advice of doctors and dietitians by promoting increased saturated fat consumption among Americans. The expected release of new dietary guidelines on Wednesday marks a significant shift in nutritional advice, with Kennedy advocating for a diet rich in protein and saturated fats.
Despite the potential backlash, HHS assures that the new recommendations will be grounded in rigorous scientific research. Kennedy's stance on saturated fats has been well-documented, with NewsNation reporting in October that he plans to recommend higher intake of these fats. In November, Kennedy stated his belief that this dietary shift would revolutionize the country's food system and culture, emphasizing the importance of protein and saturated fats.
However, this proposal goes against established public health guidelines. The Office of Disease Prevention and Health Promotion (ODPHP) recommends that saturated fats should make up less than 10% of one's diet, while the American Heart Association suggests an even lower limit of less than 6%. According to 2017-2018 data from the National Center for Health Statistics, the average American consumes around 28 grams of saturated fats daily, with toddlers and infants expected to have a higher fat intake. The ODPHP generally advises against consuming more than 20 grams of saturated fats per day.
Saturated fats are solid at room temperature and include butter, lard, coconut oil, beef tallow, cheese, and palm kernel oil. Health authorities began advising against high saturated fat consumption in the 1950s due to evidence linking it to high cholesterol and heart disease. Subsequent investigations and reviews have further confirmed this guidance, with studies consistently associating high saturated fat intake with higher LDL cholesterol, heart disease, weight gain, and diabetes.
A 2025 systematic review found that replacing saturated fat with polyunsaturated fat significantly reduced mortality and major cardiovascular events, particularly in individuals at high cardiovascular risk. Nutrition experts emphasize that lower saturated fat intake is associated with reduced risk of cardiovascular disease. Alison Steiber, Chief Mission, Impact, and Strategy Officer for the Academy of Nutrition and Dietetics, supports this view, stating that lower saturated fat intake leads to better outcomes in patients with obesity and those at risk of cardio-metabolic disease.
Kennedy's dietary preferences align with the 'carnivore diet,' which primarily consists of meat and fermented foods like yogurt, coleslaw, kimchi, and fermented vegetables. However, experts caution against extreme diets, as high saturated fat consumption can lead to elevated LDL levels, increasing the risk of heart disease and associated cardiovascular issues.
Critics argue that Kennedy and his allies often cite the dietary habits of other countries and cultures as evidence of their health benefits, but these examples cannot be generalized to most populations. The 'French paradox,' where French people have lower rates of heart disease despite high fat consumption, is often cited, but experts like Alice H. Lichtenstein suggest that there are other factors at play.
Additionally, the lower rates of physical inactivity in other countries compared to the United States cannot be overlooked. Between 2017 and 2020, 25.3% of American adults reported being physically inactive, as defined by federal health authorities. Kennedy's efforts to promote physical activity since taking over the country's health agencies further highlight the complexity of the issue.
In conclusion, Kennedy's push to end the 'war on saturated fats' is a controversial move that challenges established nutritional advice. While scientific research forms the basis of the new guidelines, the potential impact on public health and the ongoing debate surrounding dietary habits remain a topic of discussion and further study.
