[ilyt]

Not my experience. I eat one meal a day and I don't really get work going before that meal (which is usually around noon).

It's not even that I feel particularly hungry (unless I ate less than usual yesterday), peak of hunger is usually somewhere before I go asleep, I just feel a bit lethargic.

I only get "brain fog" some time after eating a lot of sweet or otherwise easily accessible sugars

> Anyway, I'm surprised this article (study?) didn't take into account "meeting fatigue". I know that for myself, after an hour in a meeting, I just want to get out so I can recharge. I know nothing productive will happen until I do so.

I swear I feel way more drained after a day of meetings than a day of brain work...

[katbyte]

In uni I would always have an energy drink during my tests, sugar is pure calories and fuel so doesn’t cause food fog

[distantaidenn]

> Not my experience. I eat one meal a day and I don't really get work going before that meal (which is usually around noon).

Of course, you do what is best for you. But I recommend you do some research in the parasympathetic and sympathetic nervous systems and how these systems relate to fasting and energy expenditure/utilization based on the diurnal cycle.

For my IF schedule, I aim to maximize the efficiency of both. This results in my having only an evening meal. I.e. active and responsive during the day (fasting), relaxed and digesting during the evening (meal time) before sleep.