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TYPES, SOURCES, AND ROLES OF VITAMINS IN THE HUMAN BODY
Abstract
This article explores the classification, dietary sources, and physiological functions of vitamins—vital micronutrients required in small amounts for maintaining human health. Vitamins are broadly categorized as fat-soluble (A, D, E, K) and water-soluble (B-complex and C), each with distinct roles in metabolism, immune regulation, tissue repair, and neurological function. The paper highlights how deficiencies in these nutrients may result in various disorders, such as rickets, anemia, scurvy, and neural tube defects. It also emphasizes the importance of a balanced diet, nutritional awareness, and the risks of unsupervised supplementation. The synthesis of literature presented aims to provide a foundational understanding for both students and health professionals regarding the essential role of vitamins in preventive health and clinical nutrition.Keywords
Vitamins; Nutrition; Fat-soluble; Water-soluble; Micronutrients; Deficiency; Dietary intake; Human health; Metabolism; Supplementation
References
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