A micronutrient is a nutrient that our body requires in small amounts, but plays an important role in maintaining good health. These include vitamins and minerals such as calcium, iron, zinc, magnesium, selenium, chromium, copper, manganese, molybdenum, cobalt, and iodine among others. Micronutrients are essential for various bodily functions including growth, development, immune function, metabolism, and reproduction. They help in the proper functioning of enzymes, hormones, and other body chemicals that regulate processes such as blood clotting, nerve transmission, and cell division. A deficiency or insufficiency of micronutrients can lead to various health problems including anemia, osteoporosis, goiter, scurvy, rickets, and other developmental disorders. Therefore, it is essential to include a variety of nutritious foods in our diet that are rich in micronutrients to maintain good health.