Supplements can play a supportive role in a fitness regimen but should not replace whole foods. They may provide essential nutrients that are difficult to obtain through diet alone or help meet specific needs related to training demands. For instance, protein powder can aid in muscle recovery, while creatine may enhance strength and endurance. However, reliance on supplements can lead to deficiencies in vitamins and minerals found in natural foods. It’s important to consult with a healthcare professional to assess individual nutritional needs and determine which supplements, if any, are appropriate for one’s fitness goals.