If you do IF, let's say, lunch and dinner, 2 meals a day, do you usually get an energy crash in between these 2 meals, or even before lunch? I'm not saying a sugar crash, just an energy crash.
What would it mean to be experiencing a crash, but after you start nibbling and eating you suddenly feel better, and some hours afterwards you seem to go low energy as well, even though you are very satiated and satisfied and not hungry at all in those periods?
On the other hand, could it be lack of sleep if you do? Or irregular cortisol levels at those times?
BONUS QUESTION: for people who want to gain or maintain weight, can you get enough calories on 2 meals alone or do you recommend a 3rd meal, ie, breakfast to pack on calories?