I've been doing keto and am fairly athletic. I also am doing it because I find it hleps my moods and affect, and I have a stable weight when I am on this diet.

I don't think that you have to be calorie-restricted to benefit from a ketogeneic diet.

The climber Dave MacLeod has a 4-hour long video that seems (to my untrained eye) to have a number of good sources. He also has a masters degree in nutrition and is a professional athlete.

He describes how underfeeding was indeed a problem with his early experiments with this approach to diet, but how it's been quite effective after being careful to eat enough.

https://www.youtube.com/watch?v=L9dtfNZahKw&t=46s

Fair enough, thanks for the link

“calorie restriction” is far from the only thing in a diet. You won't get anywhere without a mindset. Keto absolutely helps with your appetite. That's every bit as important as CR over the long haul, despite what naysayers say. They like to limit the conversation, so they can preach CICO as if nothing else matters.

Much of the benefits of any diet are actually not specific to the diet itself. Just being on a diet, any diet, is better than not for health.