Difficult to say how many calories you expend during the day and in 45 minutes of lifting because there are many variables involved making the numbers different for each person.However,in general,one should stick to a diet of lean proteins like fish,egg whites,turkey,chicken,buffalo,and protein powders with moderate amounts of good carbs like brown rice,sweet potatoes,and oatmeal.Eat plenty of veggies,esp greens,and drink alot of water.Train intensely with weights at least 3 times per week and do 30-45 minutes of cardio on opposite days,preferably on an empty stomach.Good luck.
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symmetry over size