Nutrient deficiencies are far more common than we thought. A new study published by Ty Beal and colleagues reveals that nutrient deficiencies are alarmingly common worldwide—even in developed countries. For example, 1 in 2 children and 2 in 3 women worldwide suffer from micronutrient deficiencies. One in 2 women in the U.K. and 1 in 3 women in the U.S. are also nutrient deficient. This is an enormous public health issue. Nutrient deficiencies compromise immune systems; hinder child growth, devel