Vitamin B12, also known as cobalamin, is a water-soluble vitamin that plays a crucial role in many functions in the body.

Vitamin B9, also known as folate or folic acid, is a water-soluble vitamin that plays an important role in several functions in the body.

Vitamin B7, also known as biotin, is a water-soluble vitamin that plays an important role in several functions in the body.

Vitamin B6, also known as pyridoxine, is a water-soluble vitamin that plays an important role in many functions in the body.

Vitamin B5, also known as pantothenic acid, is a water-soluble vitamin that plays an important role in energy metabolism and other important functions in the body.

Vitamin B3, also known as niacin, is a water-soluble vitamin that plays an important role in energy metabolism and other important functions in the body.

Vitamin B2, also known as riboflavin, is a water-soluble vitamin that plays an important role in energy metabolism and other important functions in the body.

Vitamin A is essential for maintaining healthy vision, immune function, and cell growth and differentiation. It is also important for healthy skin and mucous membranes, and it plays a role in reproduction and bone health.

Water is a vital nutrient for the human body, and it is essential for many important functions. It is necessary to maintain the balance of fluids in the body.