Kefir may support digestion by helping break down lactose and promoting a healthier gut environment. Many people find it easier to tolerate than regular milk, though not everyone.
For metabolism, gut microbes can influence how your body processes nutrients. By shifting gut balance, kefir may indirectly support energy regulation and healthier nutrient use.
Long-term, fermented foods are generally linked with better gut health patterns. If you have lactose intolerance, dairy sensitivity, or specific conditions, choose lactose-free or non-dairy kefir and watch your response.