Micronutrients are vital for fitness, as they support various physiological functions and contribute to overall performance. Essential vitamins and minerals help in energy production, muscle contraction, and recovery processes. For example, iron is crucial for oxygen transport during workouts, while magnesium is involved in muscle function and reducing cramps. A diet rich in fruits, vegetables, whole grains, and lean proteins ensures adequate intake of these nutrients, enhancing physical performance and overall well-being.