30 Aug 2024 --- According to a new study by researchers at Harvard TH Chan School of Public Health, UC Santa Barbara (UCSB), and the Global Alliance for Improved Nutrition (GAIN), more than half of the global population consumes inadequate levels of several micronutrients essential to health including calcium, iron and vitamins C and E. The researchers claim it is the first study to provide global estimates of inadequate consumption of 15 critical micronutrients.