Eli5: why do people say to get at least 1g of protein for desired body weight when it comes to losing weight?
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Imagine your body as a very complex and smart machine. From an evolutionary point of view, when you are not eating your body thinks you are in forest don’t have what to hunt. Your body will start burning fat but to produce energy, but also your body wants to preserve as much fat as possible, so at one point will start breaking muscle to produce energy from the aminoacids resulted from the muscle protein. But if you are dieting and constantly have aminoacids in bloodstream, this process will reverse and you will not loose any significant muscle mass. The best example are bodybuilders when are around 3-5% body fat and still loosing weight can go up to 1,5g/lb. They want to preserve as much muscle as possible
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