Vitamin B6, also known as pyridoxine, 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 vitamin B6 and was recognized as an essential nutrient for human health.
Vitamin B6 is well understood for its role in protein metabolism and as a cofactor for various enzymes involved in neurotransmitter synthesis and the metabolism of amino acids. It is widely used in the prevention and treatment of vitamin B6 deficiency and is considered an important component of a balanced diet. The discovery of vitamin B6 and its importance in human nutrition was a significant milestone in the field of nutrition science.