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this post was submitted on 23 Mar 2026
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Asklemmy
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I used to do 36 hours a week, as an experiment. Not for weight loss. Maintained my weight.
Results: lower LDL cholesterol. Sharply lower. Blood pressure lower only while fasting.
Side effects: migraines. I tried to arrange it so there was not so much time fasting before sleeping but would usually wake up with a migraine.
Never fasted more than 2 days voluntarily.
What did you allow yourself to consume during the fasts and how did you break the fasts?
Did you LDL go back up when you stopped fasting?
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.
ETA - short fast doesn't need careful refeed. I just made a regular supper to break those fasts. No problems, and in general digestion has never been a weakness for me.