This study provides the first global estimates of inadequate micronutrient intakes using dietary intake data, accounting for the shape of a population’s nutrient intake distribution. The analysis estimates the prevalence of inadequate nutrient intakes for 15 essential micronutrients across 34 age-sex groups in 185 countries. Key findings include: - Over 5 billion people do not consume enough iodine (68% of the global population), vitamin E (67%), and calcium (66%). - More than 4 billion people do not consume enough iron (65%), riboflavin (55%), folate (54%), and vitamin C (53%). - Inadequate intakes are higher for women than for men for iodine, vitamin B12, iron, and selenium, and higher for men than for women for magnesium, vitamin B6, zinc, vitamin C, vitamin A, thiamin, and niacin. The study highlights the widespread nature of micronutrient inadequacies and the need for targeted interventions to address these deficiencies. The results are intended to inform public health policies and interventions to improve nutritional outcomes.This study provides the first global estimates of inadequate micronutrient intakes using dietary intake data, accounting for the shape of a population’s nutrient intake distribution. The analysis estimates the prevalence of inadequate nutrient intakes for 15 essential micronutrients across 34 age-sex groups in 185 countries. Key findings include: - Over 5 billion people do not consume enough iodine (68% of the global population), vitamin E (67%), and calcium (66%). - More than 4 billion people do not consume enough iron (65%), riboflavin (55%), folate (54%), and vitamin C (53%). - Inadequate intakes are higher for women than for men for iodine, vitamin B12, iron, and selenium, and higher for men than for women for magnesium, vitamin B6, zinc, vitamin C, vitamin A, thiamin, and niacin. The study highlights the widespread nature of micronutrient inadequacies and the need for targeted interventions to address these deficiencies. The results are intended to inform public health policies and interventions to improve nutritional outcomes.