Your ferritin may be marked “normal,” but does that mean your iron stores are adequate when you are losing hair? Iron deficiency can develop before anemia, and lower ferritin has been associated with telogen effluvium. But there is no proven universal ferritin target for hair growth—and low ferritin should not automatically mean taking iron. Learn why ferritin is a diagnostic clue, what can cause depleted iron stores, and why unexplained hair loss deserves a broader evaluatio

What is a vitamin? A physician explains vitamin definitions, deficiencies, supplementation, and why vitamin D is actually a hormone.

Minerals are essential inorganic elements that the human body cannot produce but requires for normal structure, metabolism, and physiologic regulation. They play critical roles in bone formation, nerve and muscle function, fluid and electrolyte balance, enzyme activation, hormone production, and oxygen transport. Minerals differ fundamentally from vitamins and hormones, yet deficiencies and imbalances remain common in modern societies due to processed diets, aging, medical co