Feeling Off? These 7 Warning Signs Could Mean You're Iron Deficient
Feeling unusually tired, foggy or just off lately? It might not just be stress or poor sleep. Iron deficiency is one of the most common nutritional issues in the U.S. and many people don't even realize they have it. According to national health data, absolute and functional iron deficiencies affect more than one in 10 adults and the symptoms can sneak up on you. An absolute deficiency happens when your body doesn't have enough iron at all, while a functional deficiency means the iron is there b