It's not, but the title is extremely misleading. You MUST be in a calorie deficit to lose weight. What the study shows is that simply by doing intermittent fasting, people naturally tend to eat fewer total calories per day, and can end up in a caloric deficit.
Please people, do not simply think that intermittent fasting makes you lose weight. If you still have a propensity to eat junk food or just a lot of food even in fasting windows, you could still be gaining weight or staying at maintenance.
Please people, do not simply think that intermittent fasting makes you lose weight. If you still have a propensity to eat junk food or just a lot of food even in fasting windows, you could still be gaining weight or staying at maintenance.