"Excess calories make you fat. That's a law of physics; I have no idea why some people dispute it. It's like arguing with the law of gravity. The only question is whether calories coming from different sources are absorbed more slowly or quickly, but the end result is the same unless you're exercising to stay in shape. A calorie is a unit of energy and if that energy is not used, it must be stored. Energy doesn't just disappear into thin air; when you consume it, you either use it or you store it."
Ummmh, let's try some laws of chemistry: it takes energy to break down chemical compounds, and different types of compounds take different amounts of energy. Therefore, all calories are NOT created equally, because they move through different biochemical pathways. Protein is (energy) inefficiently broken down to glucose while sugars and starches are efficiently broken down -- you have to use more energy to break down proteins...hence, all calories in in at the mouth are NOT equal.
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Ummmh, let's try some laws of chemistry: it takes energy to break down chemical compounds, and different types of compounds take different amounts of energy. Therefore, all calories are NOT created equally, because they move through different biochemical pathways. Protein is (energy) inefficiently broken down to glucose while sugars and starches are efficiently broken down -- you have to use more energy to break down proteins...hence, all calories in in at the mouth are NOT equal.