The energy produced form ketone bodies during ketosis(a glucose deficient state in which the body falls back to energy sources from ketone bodies production) is proves that life can still continue without a constant carbohydrate source.
At least that is how our ancestors survived.

Does this means proteins are the only food stored as ketone bodies which can be used when glucose is not available?
Or other classes of food too are stored as ketone bodies?

However, I learnt something new today. Nice article.

#bigwaves