Welcome to sauerkraut season in Washington.

Multiple high-profile men serving in President Donald Trump's administration, such as Vice President JD Vance, Transportation Secretary Sean Duffy, and Commerce Secretary Howard Lutnick, have recently increased their intake of fermented items to support weight management and digestive wellness, according to The Wall Street Journal.

Health and Human Services Secretary Robert F. Kennedy Jr. reported dropping 20 pounds along with 40 percent of his visceral fat by following a regimen focused on meat and fermented options, which he described in earlier comments to USA Today.

The Journal noted that this cabinet-wide interest stems from guidance by Dr. Sean O'Mara, who advises prominent clients in politics and business to prioritize protein and fermented vegetables while avoiding sugar and alcohol.

Incorporating sauerkraut and similar foods into daily meals can support gut health when consumed in moderation. Here is what experts recommend.

Sauerkraut and similar fermented items support a healthy gut microbiome

Foods such as sauerkraut, kimchi, yogurt, and kefir often include helpful live bacteria that convert natural sugars in raw ingredients into tangy flavors during fermentation.

Strains like lactobacillus and bifidobacterium commonly found in these products promote digestion, assist in producing key vitamins, combat harmful bacteria, and reduce inflammation.

O'Mara declined to confirm any specific ties to Trump administration members due to privacy rules, yet he explained to Business Insider that he typically recommends a protein-rich, low-carb approach without processed snacks and advises adding a serving of fermented vegetables to each meal.

While not a guaranteed solution for weight reduction, these foods can enhance gut balance, which in turn supports steadier blood sugar, greater fullness after eating, and better nutrient uptake.

Caution is advised against sudden large portions, as introducing too much too quickly may cause temporary digestive discomfort including gas, bloating, cramps, or loose stools. O'Mara suggests gradual increases to allow the body to adjust.

Over time, he noted, the beneficial microbes establish themselves, leading patients to tolerate and eventually enjoy the foods regularly.

Other dietitians echo this advice, recommending slow integration alongside fiber sources like nuts, seeds, vegetables, and whole grains to foster microbial diversity.

O'Mara emphasized that individuals following vegan, paleo, carnivore, or mixed diets can all gain from including these living foods daily.

Researchers continue to explore the gut microbiome's influence on various health conditions, including how diets heavy in ultra-processed items may encourage harmful bacterial strains linked to issues such as colon cancer.