A slight variation is 1g per pound of lean bodyweight. Bob would kick ass at most powerlifting meets, so he needs to give his muscles about 260-275g of protein to keep them from degenerating due to lack of raw materials. Now, lets like at Puffy. That means that Puffy s lean bodymass is only 165lbs. If you consume fewer calories than you burn, you will lose weight.
Calories are actually a unit of heat.
When your body s natural chemical reactions occur, they release heat, which can be expressed in a number of calories. The biochemical process of building proteins one amino acid at a time inside each muscle cell is an energy consuming activity, and only occurs if there is a surplus of caloric energy in the body. The breaking down of proteins, fats and sugars into energy is what happens when the body runs a deficit of calories. When you exercise, your body actually will feel warmer because you are expending more calories. This does not mean that your temperature goes up, it means your body is producing more heat.