Foods that Americans were told to avoid for decades are back under Trump's new nutrition rulesBy Andrea Margolis Published January 18, 2026 11:01am PST Foods that Americans were advised to avoid for decades are back on shopping lists — following updated federal dietary guidance released under President Donald Trump's administration. After years of being told to avoid full-fat dairy, red meat and saturated fats like butter and beef tallow, the White House said updated guidance no longer broadly discourages those foods when consumed in moderation. The changes reflect revisions to federal nutrition recommendations developed through the Departments of Health and Human Services (HHS) and Agriculture (USDA), rather than a wholesale reversal of prior advice. Image: Dietary Guidelines for Americans, Department of Health & Human Services It doesn't mean that every fatty food is encouraged. For example, experts still caution against eating too many processed snacks that are high in saturated fat such as chips, cookies and ice cream. HHS Secretary Robert F. Kennedy Jr. said he was "ending the war on saturated fats" — though the updated report continues to recommend limits on daily intake. "Protein and healthy fats are essential and were wrongly discouraged in prior dietary guidelines," he said. Here's a handy summary of which foods are back — and how federal guidance and nutrition experts say they should be consumed. 1. Full-fat milk and yogurt The new 2025–2030 Dietary Guidelines for Americans describe full-fat milk and yogurt as "healthy fats." "In general, saturated fat consumption should not exceed 10% of total daily calories," the report states. "Significantly limiting highly processed foods will help meet this goal. More high-quality research is needed to determine which types of dietary fats best support long-term health." Full-fat dairy is packed with fat-soluble vitamins such as vitamin A, D, E and K, which "allows for better transportation and absorption," said Amy Goldsmith, a Maryland-based registered dietitian and owner of Kindred Nutrition. "There can also be an increased satiation from the products, as the fat will decrease [the hormone] ghrelin," she told Fox News Digital. Goldsmith noted saturated fat should still be portioned, even if not completely cut out. "This is the nuance with the new dietary guidelines," she said. "As dietitians, we want to ensure this visualization [doesn't lead] to an increase in saturated fat, as it could contribute to an increase in chronic disease." There's usually less added sugar in full-fat products, she noted, but they still need to be portioned out to avoid the consumption of too much saturated fat and total calories. 2. Butter The Trump administration's new report lists butter as one of several fats that may be used in cooking, while prioritizing unsaturated oils. "When cooking with or adding fats to meals, prioritize oils with essential fatty acids, such as olive oil," according to the guidelines. "Other options can include butter or beef tallow." Goldsmith said butter is a great source of vitamin A, which is "essential for vision and immune health." It also has vitamin E, an antioxidant, and vitamin K2 — which "ensures calcium is used to strengthen bones and teeth." "It also is the best source of butyric acid, which serves as an anti-inflammatory," Goldsmith said. "Most butters are 60–70% saturated fat… so it will be difficult to keep total saturated fat intake within recommended limits if portion and volume aren't taken into consideration," she added. "In addition, if someone already has a high LDL cholesterol, butter would not be the best source of spread as it can continue to contribute to increasing LDL." 3. Beef tallowBeef tallow is high in vitamin A, D, E and K, similar to other animal-based fats. Goldsmith also noted that 40–50% of beef tallow is monounsaturated fat, a proportion comparable to some plant-based oils. "The other 50% is saturated fat, however. So once again, serving size and volume need to be considered to keep saturated fat below 10% of total calories," she said. "In addition, beef tallow can be more expensive than butter and difficult to get." 4. Red meat Red meat contains essential amino acids that can't be produced by the human body, a dietitian said. (Getty Images) The new report recommends "[consuming] a variety of protein foods from animal sources, including eggs, poultry, seafood and red meat, as well as a variety of plant-sourced protein foods, including beans, peas, lentils, legumes, nuts, seeds and so." Goldsmith noted that red meat contains all nine of the essential amino acids that can't be produced by the human body alone. "About 60% of the iron in meat is heme iron, and it's one of the best sources of zinc," she said. "Heme iron is absorbed into the gut fast, which means it can rapidly restore ferritin, your iron stores." Red meat's zinc is also crucial for immune cells and inflammation control. "The new dietary guidelines stuck with the recommendation to keep saturated fat below 10% and, on average, red meat is 40–45% saturated fat," Goldsmith said. "It will be important to vary animal protein to keep the saturated fat number down as high saturated fat diets contribute to heart disease and cancers." 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If I haven't learned anything else in my 13 months, I have most definitely learned nothing is carved in stone with this way of eating. It is as individualistic as anything I have ever experienced and within the individual things can change from day to day.
I'm about 96 hours deep into my latest fast. I'm not all that concerned with the weight loss/weight loss potential. My fasting is all about healing and reversing my autoimmune disease now. My first attempts at fasting and the actual fasts I was really looking for the weight loss. I didn't experience near the weight loss I had imagined with not eating for 72-96 hours.
I ate Wednesday night at about 8PM and weighed 223lbs that morning. I hit the gym pretty hard Friday, Saturday and Sunday mornings. I went heavier on the cardio Friday morning and ramped up the weight and volume on the next two mornings. I'm on 12-hour night shifts since Wednesday. When I woke up this afternoon, I hit the scale at 213. I dropped ten pounds since Wednesday morning.
Energy levels are high. I have not been hungry. This time I have not checked my blood sugar nor the blood ketones. I probably will in the morning.
Each fast has been different in regard to weight loss. I feel like the activity level and gym work has been close to the same. I'm at 10lbs with another day to go. (maybe 2)
At 13 months I'm still learning and still don't feel comfortable giving out advice or, 'this is what someone needs to do', but fasting is a really powerful tool. I think coupled with carnivore is like the bonus plan. The first few hours the body does not have a ton of crap to work thru and getting to fat/ketones probably happens a little quicker and maybe even a tad deeper into ketosis. I'm still amazed (maybe even dumbfounded) by the energy levels while not eating. I'm sure there is a point of diminishing returns but right now at 96 hours I am still fully energetic.
I have not decided how far I plan to go. I may stop at 6 days or maybe stretch it to 7. All depends on how the next two-night shifts go.
Scott