In 1908, Metchnikov wrote as part of his book “The extension of life” how the key to longevity based in the Russian Caucasus Mountains was Kefir. Kefir is definitely cultured…
In 1908, Metchnikov wrote as part of his book “The extension of life” how the key to longevity based in the Russian Caucasus Mountains was Kefir. Kefir is definitely cultured…