Originally Posted by PosNhold

I did keto for over a year. It worked great! However, it helped lead to the formation of kidney stones. I had to have one surgically removed. Luckily I wasn’t out of flying for too long, but as someone suggested, consult a Doctor first. Some people are genetically predisposed to having kidney stones (me) and keto helped their formation. If you or family members have had them before, I’d suggest you not do keto. I am no longer on it.