In Australia, these nutrients, along with calcium and dietary fibre are the most likely to be deficient. The first symptoms of low iron are constantly feeling tired and lethargic, and lack of concentration. Iron deficiency can be diagnosed by a blood test. Yet surveys show that many women and girls do not consume enough iron in their diet. Many deliberately avoid meat and do not eat enough other good sources of iron to provide adequate amounts.
Athletes are also at high risk of low iron levels.
This may be due to inadequate diets or to increased rates of iron loss. During pregnancy and lactation, iron needs increase further and good dietary sources of iron are important. Fortunately, the body increases its ability to absorb a greater percentage of iron from foods at these times. However, some pregnant women with low iron intake do run the risk of iron-deficiency. Breast-milk contains a type of iron that is absorbed better than any other form of iron.