You need to watch your diet, especially on those days that you intend to work out. Testo XLConsume a few extra calories about 60 minutes before you begin your workout. That doesn't mean you can overeat when you are scheduled for a workout, but just be sure to eat a bit more on those days and less on the days you aren't going to be weight training.When you want to add muscle mass to your frame, make sure you are getting enough…