Just coffee. I would eat a late breakfast one day, then stop eating, coffee (no calories) the next morning and then nothing until supper, usually around 8pm.

Yes the LDL went back up. I know it was related to the fasting and not weight loss - I am not fat and maintained calories overall to keep my weight stable. I had been sort of stumped, like you are. Obviously if someone is overweight and loses weight that will have benefits, there wasn’t a lot of research on people of normal weight fasting and not reducing. I got the one measurable benefit, but no improvements I could feel in any way, and the headaches were pretty bad.