Story at-a-glance A large health screening revealed 45% of women have low hemoglobin and 75% are deficient in vitamin D; these low levels affect energy, hormones and overall health Nutrient deficiencies manifest differently across age groups, with younger women experiencing immune and hormonal issues while older women face increased risks of bone loss and cardiovascular problems Smart strategies to increase hemoglobin include consuming iron-rich foods with vitamin C, avoiding coffee/tea near meals and addressing absorption issues like gluten sensitivity While low iron is a concern in menstruating women, iron overload is dangerous and common, especially in men and post-menopausal women; high iron levels increase cancer risk and damage mitochondria Regular testing of ferritin, the protein that stores iron in your body (ideal range 35 to 45 ng/mL), and vitamin D levels (aim for 60 to 80 ng/mL) is necessary for targeted supplementation and lifestyle adjustments