The Alarming Truth About Global Micronutrient Deficiencies
A new study highlights a widespread deficiency in essential micronutrients, with over half of the global population lacking key nutrients such as calcium, iron, and vitamins C and E. These deficiencies contribute to significant health issues, including malnutrition, vision problems, increased susceptibility to infections, and complications during pregnancy. The findings, published in The Lancet Global Health, underscore the urgent need for improved dietary interventions.
The research, which analyzed data from 185 countries, focused on 15 crucial vitamins and minerals. The study revealed that iodine, vitamin E, calcium, and iron are among the most commonly deficient nutrients, affecting 65% to 68% of people worldwide. In addition, deficiencies in riboflavin, folate, and vitamins C and B6 are prevalent in more than half of the global population.
Gender differences were noted in nutrient deficiencies: women were more likely to have insufficient levels of iodine, vitamin B12, iron, and selenium, while men commonly lacked niacin, thiamin, zinc, magnesium, and vitamins A, C, and B6. Children and young adults, particularly in South and East Asia and sub-Saharan Africa, showed notable deficiencies in calcium, though low intake was also observed in North America, Europe, and Central Asia.
Christopher Golden from Harvard’s T.H. Chan School of Public Health emphasized the magnitude of the public health challenge and the need for targeted dietary interventions. The study represents a significant advancement by providing detailed estimates of micronutrient deficiencies across various age and sex groups globally.
Co-lead author Chris Free from the University of California-Santa Barbara praised the study for its comprehensive approach and accessibility. The research not only highlights the global scale of micronutrient deficiencies but also provides valuable data for addressing these issues effectively.
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