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arnoldspump
11-14-2017, 08:53 PM
if you eat protein only, you are intaking necessary aminos for tissue repair
but if you eat no carbs (nor fats) as sources of energy for you metabolism then this is bad (if you have no reserves)
but if you have energy reserve, ie body fat, then even if you eat no carbs for energy then it will take the necessary energy from your stored fat

disagree? why?

FatalTragedy12
11-14-2017, 10:03 PM
No, because of this thing called malnutrition. There are many different forms of malnutrition (eg. Kwashiorkor is protein-energy malnutrition) and you must get some intake of fats and carbohydrates as not all the essential nutrients and fatty acids are stored in your adipose tissue readily available for your brain and other organs. You must continuously get these from sources of nutrition or you will face significant morbidity, disease and/or death. This applies less to carbohydrates as ketone bodies can act as carbohydrates to nourish the brain in the absence of carbohydrates.

Protein isn't the only thing we use to repair muscles, on that diet, a significant portion will undergo gluconeogenesis to be converted into glucose for energy. Your entire body would shut down as fat is required for hormone synthesis (primarily testosterone) which is synthesized from dietary and formed cholesterol. It's also very unnecessary when fat loss can be achieved by healthier means.

In short, it's a bad idea and nobody should do it.

BecomingSmaller
11-14-2017, 11:59 PM
Google “rabbit starvation” aka protein poisoning.

lowkey122
11-15-2017, 05:22 AM
if you eat protein only, you are intaking necessary aminos for tissue repair

agreed


but if you eat no carbs (nor fats) as sources of energy for you metabolism then this is bad (if you have no reserves)

agreed


but if you have energy reserve, ie body fat, then even if you eat no carbs for energy then it will take the necessary energy from your stored fat

Not exactly. First and foremost you still need essential fatty acids in your diet. Even if your fat intake is too low, much less nonexistent, you can set yourself up for failure.

Second, your body can only convert so much energy from its fat reserves. If your body could just turn fat right back into energy then theoretically we could just fast until we got down to our ideal weight but the fact is we'd die before that would happen even though the potential calories are there in abundance.