I just found it out >For a good complete info in Vitamin B12 I'd recommend to read >http://www.veganoutreach.org/health/b12.html If you like to read about b12, now it's a PDF, http://veganoutreach.org/health/B122002.pdf And it's even better B12 supplementation is to be recommended for vegans. Or smokers (excrete more). regards Amadeus