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A member asked:

Starvation mode: only fat is used for a short period before turning to muscles? how long before the body taps into muscles for energy? estimation?

A doctor has provided 1 answer

Starvation is not: only counter-productive but dangerous. Muscle loss can begin in as little as 48 hours.

Dr Rhoads and 2 doctors agreed

Answered 11/1/2014

3.6k views

Thank

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How long does it take before your body starts losing muscle when it is in starvation mode or fasting?
Hi, I have heart/chest pain after a prolonged period of starvation (7 weeks), no food ingested. Could the left ventricle have atrophied? What would be the best way to re-strengthen the heart? Cardiovascular exercise only, or is weight training safe?
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