Nutrition: Thiamin is a member of the water-soluble B-vitamins and is also known as vitamin B1. Thiamin assists the coenzyme thiamin diphosphate (TPP) in the production of energy through metabolism.TPP helps with the conversion of pyruvate to acetyl CoA, the first step in the Krebs cycle. Thiamine also plays a role in the transmission of nerve signals to other nerves and also to muscles. As a vitamin, it is necessary to get thiamin in the diet since the body cannot produce it. Deficiency of thiamin causes a condition known as beriberi that is fatal if left untreated. The symptoms of beriberi are edema, enlarged heart, arrhythmia, heart failure, muscle wasting, weakness, painful calf muscles, paralysis and loss of reflexes. Thiamin is found in a wide variety of food sources but is very high in brewer’s yeast, pork and cereal grains. The recommended intake of thiamin is about 1.5 mg per day. Of course it can also be supplemented alone, in a multivitamin or in a B-complex with other B-vitamins. Toxicity due to thiamin is unlikely when taken orally since excess amounts are excreted in the urine.