Really interesting, your orginal post inspired me to give it a go having read Joe Wicks cook book which is essentially plagerised from Ruled me and is keto lite.
I waited until I’d run the marathon before I started on th high fat low carb diet as I didn’t fancy changing my diet whilst training so heavily.
I’ve lost about 1 stone in about 6 weeks with much lower activity levels having already lost weight marathon training. I do allow myself the occasional bowl of oats before or imediately after a long long training session. Some days I was keto some not.
I’m on hols this week and I’m having a weeks off the diet. I’ve cycled and indulged one day and fasted with a single keto meal the next. I have no idea how that’s worked. I’ll be much better prepared for the next holiday but unsweetened almond milk which a main stay in my diet is impossible to get in France.
The one weekend I has to give in was a three day bikepacking/hike a bike where no matter how many nuts I ate I had no energy. The first thing I did when I hit civilisation was neck two portion of beans on toast.