Thiamin also called Vitamin B1 is part of the vitamin B family. All B vitamins are water soluble and overdosage is therefore not likely to occur. Vitamins are substances that the body cannot create create. We get our vitamins via food. Vitamins are found in fruits and vegetables. It may happen that because of poor dietary habits or other circumstances a shortage may occur in the body. The products in this category are an excellent alternative to extra intake of vitamin B1.