Vitamin b1 also known as thiamin helps break down carbohydrates fat and protein in the body to provide energy vitamin b1 is needed in every cell of the body for the production of atp the fuel the body runs on it helps support a normal appetite maintain a healthy nervous system and aid the proper functioning of the heart and other muscles stress increases the need for vitamin b1 and all other b vitamins healthaid provides a unique b1 formulation that is readily absorbed for maximum