The Most Common Vitamin Deficiencies Worldwide

Vitamin deficiencies remain one of the most widespread public health challenges globally. Despite advances in healthcare and food production, billions of people still fail to obtain sufficient amounts of essential vitamins through their diets.

These deficiencies can impair immunity, cognitive development, vision, bone health, energy production, and overall well-being. Children, pregnant women, older adults, and people living in low-income regions are particularly vulnerable.

Understanding the most common vitamin deficiencies can help individuals make informed dietary choices and support global efforts to improve nutrition. According to the World Health Organization (WHO), micronutrient deficiencies continue to affect large populations worldwide and contribute significantly to disease burden and reduced quality of life.