The science of fermented foods
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Researchers are starting to understand how foods like kimchi, yogurt and sauerkraut affect our health.
PHOTO: CELESTE NOCHE/NYTIMES
Alice Callahan
- Fermented foods like kimchi, yogurt, and sauerkraut are increasingly popular and recommended for gut health, with potential benefits including reduced inflammation and improved gut microbiome diversity.
- Studies suggest fermented foods may lower risks of chronic diseases, obesity, and diabetes, but research is limited and cannot yet prove direct health benefits.
- Fermented foods provide nutrients and aid digestion, but some contain histamines or high sodium, requiring caution for sensitive or immunocompromised individuals.
AI generated
NEW YORK – Breweries sell craft kombucha on tap. Fruit vinegars and cultured chilli pastes are featured on five-star restaurant menus. Walmart and Target stock kimchi and kefir.
Fermented foods have been popular in the US for decades, but, more recently, they have been thrust into the national spotlight.

