The global challenge of iron deficiency – and the puzzle of whether to take supplements
A lack of this vital nutrient is one of the world's leading causes of disability – but exactly when it becomes a problem, and ...
Supplements are usually taken to improve health. Doctors and nutritionists warn: You can have too much of a good thing.
Americans have their choice of up to 100,000 different dietary supplements, from vitamins and minerals to herbal options and products promising weight loss and a toned body. Nearly 75% of Americans ...