Low iron is the most common nutritional deficiency for those with gluten sensitivity and celiac disease. Iron is essential in forming hemoglobin, the protein that helps red blood cells carry oxygen. A deficiency of iron can cause anemia, and lead to fatigue, brain fog, shortness of breath, depression, exercise intolerance, and chronic pain. This high potency blend of iron is designed for maximal absorption (even for those with GI damage). It contains cofactors that help aid the body in absorption, uptake, and utilization by the cells.