Altering macronutrient ratios can significantly affect body composition. Increasing protein intake while reducing carbohydrates can promote fat loss while preserving muscle mass, an approach often utilized during cutting phases. Conversely, a higher carbohydrate intake may support athletes in gaining muscle strength and size. Balancing dietary fats is also crucial, as healthy fats are necessary for hormonal function and overall energy. However, it is essential to adjust these ratios based on individual goals and activity levels. Monitoring progress and making iterative adjustments ensures effective results in achieving desired body composition.