Carbohydrate.

[MikePollard]

On dietary carbohydrate requirement.

The body DOES require some glucose, primarily red blood cells which have no mitochondria. However, if you took in no carbohydrate WHATSOEVER, you would still have all the carbohydrate requirement needed and your blood sugar would be normal. 

What, why, how? Outrageous statement!

Well, the seekers of truth with a computer and access to the internet (ie everyone on this forum) can seek out all the research they need to formulate a science based conclusion, based on published clinical experiment. Become your own expert for heaven's sake.

So back to What, why, how?

It's called gluconeogenesis where the body MAKES glucose from the breakdown of protein and to a lesser extent fat. Look it up - you have a computer!

Not convinced that you would survive by eliminating an entire food group? Well explain how someone could have a normal blood sugar after a 382, no food whatsoever, fast:

ncbi.nlm.nih.gov/pmc/articl...

Whilst you're at it have a little dig about the Inuit and their nutrition before they adopted the western SAD diet.