Reports indicate that a group of senior White House figures, including Health and Human Services Secretary Robert F. Kennedy Jr., have adopted a highly restrictive diet composed primarily of meat and sauerkraut. Kennedy, 72, is said to have lost 20 pounds in 30 days on this regimen, reporting improvements in aches, pains, and heart health. Vice President JD Vance, 41, has also reportedly joined the trend and appeared slimmer.
The diet, promoted by Dr. Sean O'Mara, is referred to as the 'living carnivore diet.' It builds on a traditional carnivore diet of meat and eggs by pairing each bite with a fermented food, such as sauerkraut, kimchi, or yogurt. O'Mara claims this approach can eliminate visceral fat, the dangerous fat surrounding internal organs, and potentially enhance longevity.
Experts, however, express skepticism regarding the diet's unique claims. Dr. Hope Barkoukis, chair of nutrition at Case Western Reserve University, stated that rapid weight loss on such restrictive diets is often due to a general reduction in calorie intake rather than specific food combinations. She noted that eliminating carbohydrates can induce ketosis, a metabolic state leading to quick initial weight loss, including visceral fat, a phenomenon not exclusive to this diet. Barkoukis cautioned that highly restrictive diets are difficult to maintain, often leading to weight regain.
Fermented foods like sauerkraut do offer potential benefits, including probiotics that support gut health and potentially improve the gut microbiome and immune system. However, these advantages are typically observed within the context of a balanced diet that includes a wide variety of plant-based foods, which is largely absent in a carnivore-style approach. Registered dietitian Tiffany Bruno pointed out that probiotics require fiber to thrive, and a diet lacking fiber would limit their effectiveness.
Concerns have also been raised about the high sodium content in sauerkraut, which, when combined with seasoned meat, could lead to excessive daily sodium intake, increasing risks of high blood pressure, cardiovascular disease, and stroke. A diet rich in animal protein may elevate LDL cholesterol in some individuals and strain the kidneys over time. Furthermore, the lack of dietary variety heightens the risk of nutritional deficiencies, particularly in fiber and essential vitamins typically found in plant foods.
Experts generally recommend a more balanced dietary approach that incorporates a mix of whole foods, including vegetables, fruits, whole grains, and other sources of dietary fiber, rather than relying on restrictive patterns with unproven long-term health benefits.