> At least understand how ketosis works and why it isn't our default mode of metabolism It is the default metabolism. 1. All things being equal if you do not

> At least understand how ketosis works and why it isn't our default mode of metabolism It is the default metabolism. 1. All things being equal if you do not introduce any calories into your body you will naturally be in ketosis. 2. The only way to be kicked out of ketosis is to elevate blood glucose levels/spike insulin. Sure that is nearly everyone now, but that doesn’t make it the Body’s default...you need to eat a certain way for that to happen, historically there really wouldn’t have been a ton of available options to Eat Foods to kick humans out of ketosis until humans began farming grains and cereals. 3. Perhaps most importantly your brain can run off of ketones or glucose, very few things can cross the blood brain barrier, and ketones are far more efficient at crossing the blood brain barrier and powering the brain.