Vitamin B1 (Thiamin) 500 mg provides Vitamin B1, also known as Thiamin, in tablet form. Vitamin B1 is a key B-Vitamin and contributes to energy metabolism in the body helping the body convert food into energy. Vitamin B1 can naturally be found in whole grains, beans, nuts and meat. It is classified as a water-soluble vitamin and is used by almost every cell in your body. As well as regulating energy levels, it supports a healthy heart and a balanced mind. Vitamin B1 (Thiamin) 500 mg Tablets, 1 a day, delivers 500 mg of this key vitamin, contributing to: Normal energy-yielding metabolism Normal functioning of the nervous system Normal psychological function Normal function of the heart