Vitamin B6 Deficiency occurs when the body does not get enough pyridoxine, a vital nutrient that helps in various bodily functions. This vitamin is essential for protein metabolism, the production of neurotransmitters, and the formation of red blood cells. A deficiency can lead to symptoms such as fatigue, irritability, and weakened immune function. Common causes of Vitamin B6 Deficiency include poor diet, certain medical conditions, and the use of specific medications. Foods rich in Vitamin B6 include poultry, fish, potatoes, and non-citrus fruits. Addressing the deficiency typically involves dietary changes or supplementation under medical guidance.