A key nutrient that the body needs to break down proteins, carbohydrates, and fats in food for healthy blood, skin, and nerves. It is found in many foods, including meats, bananas, legumes, eggs and whole grains. Pyridoxine is being studied in the prevention of hand-foot syndrome (a disorder sometimes caused by certain anticancer drugs). Hand-foot syndrome is marked by pain, swelling, numbness, tingling or redness of the hands or feet. Also called vitamin B6.