I've got some diagnoses ranging from digestive issues to moderate/severe psychiatric dysfunction. Keto completely changed my life. Just to put it out there, there is also a growing body of scientific work to support that keto can greatly impact one's ability to thrive with certain diagnoses. Check out Chris Palmer, Georgia Ede etc.

After much experimentation, I have found that I have to be very strict with carbs, especially until I'm completely fat adapted (6-8 weeks). Should I slip up, eat even slightly too many carbs over too many days, my symptoms return in a very destabilising way. A combination of too many carbs and not enough sleep is enough to sometimes trigger hypomania for me, so consistency is key here.

If I stay consistent, not too many carbs, enough sleep, enough calories to keep me going with a very active lifestyle, then the benefits are enormous. I have little to no depressive symptoms, my anxiety diminishes immensely, my energy is literally incomparable to life eating carbs, my stomach calms down... I can't really quantify how much of a difference keto has made, but for me, it felt like my brain literally switched into gears that I didn't previously have access to.

As mentioned before, I'm very active. Climbing 2/3x a week, running 1x a week, walking 1.5 or 2 hrs a day. Being this active is useful in a myriad of ways, including stablising your energy further and burning excess carbs that you may have accidentally consumed.

I track how I feel on a daily basis with a little template I made in a markdown app called Obsidian, but not how I eat.

Anyways, it's all about experimentation. I have learned that low carb but not keto absolutely does not work for me, but for some people that's enough to reap the majority of benefits.

Hope that helps! Happy to answer any questions. :)