What we've found so far suggests that eating more protein may help young men gain muscle and lose fat when doing intense exercise in a calorie deficit. Our analysis of the available research shows the evidence leans in this direction. We looked at two assertions involving a total of 102.0 supporting data points, with no studies refuting the idea. The first assertion found that young men who lift weights hard and eat less for a month may build more muscle and lose more fat when consuming 2.4 grams of protein per pound of body weight daily, compared to half that amount [1]. This pattern was supported by 51.0 pieces of evidence. The second assertion showed that, in general, young men eating higher protein while exercising intensely and cutting calories tend to gain more muscle and lose more fat than those eating less protein [2]. This broader claim was also backed by 51.0 supporting data points. We did not find any studies that contradicted these patterns. However, our current analysis is based on limited assertions—only two—though each is supported by a large amount of evidence. We cannot say this is true for everyone or under all conditions, as the data focuses on young men, intense training, and one-month periods. Because the evidence we’ve reviewed leans toward higher protein being helpful in this specific situation, it may be worth considering for those trying to improve body composition while cutting calories. But we also recognize that new data could shift or refine these findings over time. Practical takeaway: If you're a young man doing intense workouts while eating less, eating more protein—especially around 2.4 grams per pound of body weight—might help you gain muscle and lose fat at the same time. But this is what we’ve found so far, not a final answer.