Many of you have asked for my opinion on the ketogenic diet, here is my summary, based on current evidence.
What it is:
A very high fat, low carbohydrate diet, initially devised in the 1920’s to treat severe seizures in epilepsy.
Gained popularity for weight loss in recent years.
What is ketosis?
Glucose is the main source of energy for the body, from carbohydrates. Brain uses 120g glucose per day
When the body is deprived, alternative fuel is produced =‘ketones’
During fasting – body removes glucose from the liver and breaks down muscle (glycogen) to release glucose
Once this depletes glucose stores, (3-4 days), insulin decreases and body uses fat as primary fuel.
Liver produces ketone bodies from fat.
Ketones accumulate in the blood = ketosis
So what is the bottom line?
– Weight regain a risk after following a restrictive diet