The B vitamins riboflavin, thiamin, niacin, and pyridoxine dissolve into cooking water at differing rates. It also supplies potassium, thiamin, and folate. Vitamin B1 deficiency (thiamin deficiency) can cause glossitis. For Thiamin and Niacin the PRIs are expressed as amounts per MJ of calories consumed. For Thiamin and Niacin, the PRIs are expressed as amounts per MJ of calories consumed. Ascorbic acid, thiamin, and many aromatic compounds are heat-sensitive. It employs one cofactor, thiamin diphosphate. Lack of thiamin causes the disease known as beriberi. The toxicity appears to be due to thiaminase, which can cause thiamin (vitamin B1) deficiency. Lack of thiamin later in life causes the disease known as beriberi. The cofactor necessary for this step to occur is thiamin pyrophosphate (TPP). It has 2 cofactors&colon; FAD, and Thiamin diphosphate. Pork is very high in thiamin (vitamin B). Other names in common use include thiamin-monophosphate kinase, thiamin monophosphatase, and thiamin monophosphokinase.