Anemia is a condition in which the body does not have enough healthy red blood cells. It can be caused by a variety of factors, including iron deficiency, vitamin B12 deficiency, and cancer. Anemia can lead to fatigue, shortness of breath, and problems with memory and concentration. There are many different types of anemia, and each requires specific treatment. In most cases, doctors will prescribe iron supplements or blood transfusions. Anemia can be avoided by getting enough iron. Iron deficiency anemia is the most common type of anemia, and it occurs in about 10% of people aged 6 months to 60 years. The largest single source of iron is red meat, which provides about 8% of the daily value (DV) of iron. Other dietary sources include fish and seafood, lentils, soybeans, eggs, spinach and broccoli. Iron is important for helping to carry oxygen in the bloodstream, and it plays a role in the production of hemoglobin, which carries oxygen. Iron also helps to produce myoglobin, which plays a role in muscle contraction. Because most people consume adequate amounts of iron, it is rarely a concern for most individuals. The main concern with iron deficiency anemia is that it can lead to health problems if left untreated.