Which nutrient deficiency is most common in females in the USA?

The most common nutrient deficiency in females in the USA is iron. This deficiency is particularly prevalent among women of childbearing age due to menstruation, which can lead to a loss of iron. Additionally, many women may not consume adequate amounts of iron-rich foods or may have increased iron needs during pregnancy. Symptoms of iron deficiency can include fatigue, weakness, and anemia, making it a significant public health concern.

While calcium, vitamin D, and folic acid are also important nutrients and are associated with deficiencies in certain populations, iron deficiency remains the most widespread issue among females, largely due to the factors associated with their reproductive health and dietary patterns.