[owebmaster]

> If I eat one meal per day after that meal I will feel lazy and quite tired.

It takes some days/weeks (dependending on the individual) for your body to switch from carbs-only to carbs & fat burning so when you feel lazy and tired it is because your body is not properly burning fat to supply you with the energy required thus asks for food always that it depletes carbs of easy access.

> If I finally eat any later than 6pm I will start getting weak/shaky beyond 6pm.

Yup! I feel the same. I eat 8-9pm and around 11pm I sleep like a baby. Win-win.

> This isn't a result of lack of acclimation.

Now this is a point difficult to prove.

[devotedtoneu]

I've done keto for many months, so I'm quite used to the switch-over you describe.