A mineral naturally present in many foods and available as a dietary supplement, Iron is an essential component of haemoglobin, an erythrocyte protein that transfers oxygen from the lungs to the tissues. As a component of myoglobin, a protein that provides oxygen to muscles, Iron supports metabolism. Iron is also necessary for growth, development, normal cellular functioning, and synthesis of some hormones and connective tissue.
7 Caffeine-free Ways to Boost Your Energy Levels
A cuppa a day, keeps the drowsiness away. Or so you think. Discover other foods that do a good job of perking you up, without the ill effects of caffeine.