Athletes who think they have a fast metabolism usually just aren't eating enough. Add a fourth meal each day, preferably a high-calorie protein shake, to create the calorie surplus needed for weight gain.
How do you fix your fast metabolism as an athlete? I'm sorry guys, I hate to burst your bubble, but there's almost zero evidence that anyone has a faster metabolism than someone else. Usually the athletes who are telling me that they have a super fast metabolism are the athletes that can't gain weight no matter what they do. I get it, it sucks and it's hard, but if you can't gain weight, it is because you are not eating enough to make up for the amount of activity that you have. One thing that you can start doing tonight to help with that is to add one extra meal into your day. So instead of having 3 meals, Go for 4 meals, and that meal can even be like a super high-calorie protein shake, but that is going to help increase the amount of calories you're having to then allow you to put on weight and to put on muscle size.
