Micronutrients are essential for athletes, as they support various physiological functions critical for performance. Vital vitamins and minerals such as calcium, magnesium, and vitamin D promote bone health and muscle function. They aid in energy metabolism and help combat oxidative stress induced by intense training. Additionally, micronutrients like iron are crucial for oxygen transport, while antioxidants support recovery and immune function. Ensuring adequate micronutrient intake through a balanced diet can enhance training outcomes and overall athletic performance.