BBC:
Many of the changes in my body when I took part in the clinical trial of an intermittent fasting diet, were no surprise. Eating very little for five days each month, I lost weight, and I felt hungry. I also felt more alert a lot of the time, though I tired easily. But there were other effects too that were possibly more important.
During each five-day fasting cycle, when I ate about a quarter the average person’s diet, I lost between 2kg and 4kg (4.4-8.8lbs) but before the next cycle came round, 25 days of eating normally had returned me almost to my original weight.
But not all consequences of the diet faded so quickly.
“What we are seeing is the maintenance of some of the effects even when normal feeding resumes,” explains Dr Valter Longo, director of USC’s Longevity institute-
All religions of world practice some kind of fasting
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