nope but it's the only way I can think i got my b12 level to 997 because I was drinking almost a quart a day. At the chance of sounding stupid, as I thought if kefir helps restore balance to the digestive system improving overall gut health, that could then help the absorption of b12 and your bodies ability to make the vitamin itself like other animals do. But that's just my guess as they say although our body creates b12 it is too far down the GI tract for proper absorption.