Fuel the body with NOW Foods - Iron 36mg, featuring Ferrochel® Iron Bisglycinate to support energy production, immune health, and neurological health. Utilizing iron from Albion Labs, the Iron Bisglycinate is much more gentle on the digestive system and does not cause constipation. Iron is essential and must be supplemented or included within the diet, and plays critical roles in a healthy lifestyle. Biological process like immune system health, neurological health, and energy production require iron and it is critical in hemoglobin to transport oxygen to muscle tissues.