You're welcome!
I think you are right, there is no point in doing the keto diet unless you're over weight or have cognitive
and or energy problems.
Isn't this the case for most of us? ;>)
If 15 stone is your healthy weight, you must have pretty heavy bones or loads of muscle, or both. For me, it would be very difficult to ever reach that weight unless I become a body builder. I burn my calories way too fast.