Vitamins and minerals are essential for supporting overall fitness as they facilitate various bodily functions. Vitamins such as B-complex are crucial for energy production, while vitamin D is vital for bone health and immune function. Minerals like calcium and magnesium play roles in muscle contraction and recovery. A balanced diet rich in these nutrients supports endurance, strength, and overall performance. Supplementing deficiencies through dietary adjustments or targeted supplementation can help enhance athletic performance and maintain optimal health levels.