I'm 18 260lbs, trying to burn the fat away. Currently I'm doing 45 minutes of weight training (upper and mid body), and 30 minutes of cardio (lower body with bike and stair climber). And I'm not sure on what kind of intake I should have... I want to be able to keep my muscles in tip top shape (and avoid catabolism), as well as reduce my calorie intake to loose the weight. Another problem that comes out of this is how much calories should I reduce from my diet? If I don't eat enough my metabolism will slow down, which is what I don't want. So I'm guessing there is a balance some where.