What about the 18:6 (18 hours of fasting, 6 hours window to eat) for maintenance? Isn't it somewhat better and more comfortable (thus easier to maintain long term and remain and the ideal weight forever) as opposed to 1 day of fasting and one day of refeeding? (talking about the <20% body fat category - basically, normal life)
I agree. Anything that requires drastic lifestyle changes is unlikely to be followed for a long period of time. It's why fad diets come and go. They're often pretty extreme divergences from your pre-existing habits.
Unless you used this technique briefly to get you down to a healthy body fat percentage, say 15-20 and then switched to an 18:6 to maintain. I could get behind that as long as the lack of food doesn't distract people from their work or anything like that.
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