Is there any research concerning the benefits of kefir?
Yes. Elie Metchnikoff, a Nobel prize winner, was the first to extensively study kefir and its links to longevity, documenting how kefir is an extremely effective natural ingredient that combats intestinal infections(4). Through his research, he detailed how kefir activates the flow of saliva, contributing to easier digestion, greater gastrointestinal health and a prolonged life. Further research of its protective mechanisms have found that several of the bacteria in kefir produce lactic acid, which alters the Ph of the colon and may help prevent some types of cancer by preventing the growth of harmful bacteria that favor tumor growth(5). Through the years, several other researchers have followed in Metchnikoff’s footsteps to study lactic acid fermenting dairy products, and much of their evidence supports his initial theory.