[kaonashi]

> Also why conflate fasting and ketogenics?

He made the distinction between ketosis, a ketosis-inducing diet and fasting as far as I could tell:

> I’m suspicious that there are big differences between nutritional ketosis (induced by reducing the intake of high glycemic index foods) and ketosis induced from fasting. In other runs done in nutritional ketosis I didn’t feel that energetic (but it’s hard to compare since I’ve never done it that far in distance). That’s something I may explore.

[DrScump]

Ketosis should have a uniform effect, whether induced by fasting or keto eating. What makes the former more fatiguing, psychological effects aside, is the lack of instantly-available free fatty acids.