I came across an article that says: “Not eating for 12-16 hours can help people quickly reset their sleep-wake cycle, according to a study from the Harvard Medical School. This discovery can drastically improve a person’s ability to cope with jet lag or adjust to working late shifts.”
I didn’t know about this and as they mention Harvard it might be true (however the article doesn’t have a link to the study itself). When I travel to Europe first 2 days are usually wasted, so first time I travel there I’ll see whether it works. If I want to be up at 6 AM I have to stop eating at 2-6 PM the day before which might be hard as I usually wake up during my first night and eat and eat.
The full article is here .