Which two vitamins are classified as water-soluble?

Vitamin B complex and vitamin C are classified as water-soluble vitamins. Water-soluble vitamins are those that dissolve in water and are typically not stored in the body in significant amounts; instead, they are excreted through urine. This means they must be consumed regularly to maintain adequate levels.

Vitamin B complex consists of several vitamins that play vital roles in energy metabolism, neurotransmission, and red blood cell production. These include B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folate), and B12 (cobalamin). Each of these has distinct functions that contribute to overall health.

Vitamin C, also known as ascorbic acid, is essential for collagen synthesis, immune function, and acts as an antioxidant.

In comparison, the other choices include fat-soluble vitamins such as A, E, D, and K, which are stored in the liver and fatty tissues, and therefore do not belong to the water-soluble category.