As I was driving home today after a day-long hike, it occurred to me that the alertness that I felt while driving home qualifies as a non-scale victory. Pre-keto, I would consume sugar-laden gels throughout the hike and I would save a few of the caffeinated ones for the very end of the hike in hopes that the caffeine would keep me awake for the drive home. Despite the caffeine, there were more than a few times when I would struggle to stay awake on the drive home. I was really happy when someone else would drive as that would give me a chance to snooze.
Anyway, I’ve noticed that I haven’t had any problem with easily staying awake and alert on the drive home shortly after starting keto w/ IF. (I’ve been fasting during my hikes, though I do consume water w/ electrolytes.)