Thiamine, niacin, and folic acid belong to which category of nutrients?

Thiamine, niacin, and folic acid are classified as water-soluble vitamins, which are essential nutrients that dissolve in water. These vitamins play critical roles in various bodily functions, including metabolism and the production of energy. Being water-soluble means that they are not stored in the body for long periods; any excess amounts are excreted through urine. This characteristic necessitates regular dietary intake to maintain adequate levels.

In the context of nutrition, other categories exist, such as fat-soluble vitamins, which include vitamins like A, D, E, and K, and they are stored in the body’s fat tissues. Organic materials are a broader classification that includes various compounds containing carbon, and inorganic materials refer to minerals and other substances not containing carbon. The specific classification of thiamine, niacin, and folic acid as water-soluble highlights their distinct characteristics and importance to health.