I've been on keto for a while and my dad mentioned to someone at his work who is a very nice gentlemen who has a child with very serious health problems and is on a variety of meds and is on the keto diet to drop some weight I belive.
Anyway he has given me a truck load of keto things that has been prescribed due to him having an absolute abundance of it. I believe you can buy them online somewhere but they are pretty expensive.
They are made by nutricia and are called calogen and ketocal 3:1.
Not sure about the keto cal but the calogen has 50g fat per 100ml with no protein or carbs.
Don't know if I feel right about it ahha and has anyone ever tried this? Strict medical supervision is advised but what are you guys thoughts?