Description

Thiamin (or thiamine) is one of the water-soluble B vitamins. It is also known as Vitamin B1. Thiamin is naturally present in some foods, added to some food products, and available as a dietary supplement.

Symptoms of deficiency are loss of weight and appetite, confusion, memory loss, muscle weakness, heart problems, headache, nausea, fatigue, irritability, and depression.

Fasting not required.