AboutIron is an essential mineral and a key element in the metabolism of living organisms. Iron is needed to make red blood cells and is an important component of proteins and enzymes. It also helps transport oxygen throughout your body and supports the creation of energy from nutrients. Iron deficiency is the most common in the world; pregnant and lactating women, infants, adolescents, vegetarians, and those who engage in high-intensity training may be at greater risk. Here at Tespo Vitamins®, we use SunActive®, a micronized form of insoluble iron with no change to color or flavor. It is mild on the gastrointestinal system and contains superior properties and bioavailability. SunActive® Iron is a registered trademark of Taiyo International, Inc.