Vitamin B5, also known as pantothenic acid, was discovered in the mid-20th century. In the 1930s, a substance was identified in liver that was essential for the growth of young animals. This substance was later named pantothenic acid and was recognized as an essential nutrient for human health.
Pantothenic acid is well understood for its role in energy metabolism and as a component of coenzyme A, which is involved in various metabolic reactions, including the breakdown of carbohydrates, proteins, and fats. It is widely used in the prevention and treatment of pantothenic acid deficiency and is considered an important component of a balanced diet.