International Sports Sciences Association (ISSA) Trainer Practice Exam 2026 - Free Trainer Practice Questions and Study Guide

Micronutrients are essential nutrients that the body needs in smaller amounts compared to macronutrients. They play crucial roles in various physiological functions, including metabolism, immunity, and bone health. Vitamins and minerals are classified as micronutrients, which are important for overall health.

Vitamin C is a prime example of a micronutrient. It is a water-soluble vitamin that acts as an antioxidant, supports the immune system, and plays a significant role in the synthesis of collagen, which is vital for the health of skin, cartilage, and bones. Consuming an adequate amount of vitamin C is essential for preventing deficiencies and maintaining optimal health.

In contrast, options such as calcium, while a crucial mineral, is more accurately categorized as a macronutrient in terms of its required quantity for health, though it is technically a mineral. Protein and carbohydrates, on the other hand, are macronutrients that provide energy and are necessary in larger amounts for building and repairing tissues.