[catdog]

I agree to disagree which that headline. IF helps you to loose weight because it helps you to actually take in less calories.

I think it's basically a combination of two things:

1. It's really difficult to break out of that viscous high blood sugar -> Insulin -> felling hungry cycle using pure will power because it's really strong and it most of the time wins in the long run. Our typical high glucose western diet makes this even harder. (Intermittent) Fasting drastically puts the breaks in, anecdotally it can be very hard at the beginning but for many success arrives before willpower is depleted.

2. IF fasting is basically changing your eating habits while not changing your eating habits. Skipping a meal or two is easy (all you have to do is literally nothing) compared to making sure getting the "right" kind of meal in the "right" amount 3+ times a day is a constant effort both psychologically and depending on your daily routine even logistically. Also there is no feeling of missing out on things you like because you don't have to, you just delay them for a couple of hours.

// edit:

To add to that: In itself it's an interesting finding that there seems no additional weight loss effect by the fasting itself but the framing of this in the media (just to gain some attention) is really, really terrible in my opinion. It can turn people away from trying a weight loss technique which for many who failed and failed again with trying "simple" calorie reduction finally leads to success.