I've also had weight loss success with IF. I do 16/8 mostly with the occastional 24 hour fast. I get a lot of pushback that it's 'bro science', and a lot of claims around improving insulin resistance isn't proven, so it's good to get some science behind the practice that clearly works.
The reason I have found it effective is that it's simple to follow. I don't need to count calories, I don't have to learn too much at all, I simply don't eat outside of my hours. Given I've now found I don't feel hungry most days until I start eating, it means I eat less.
Now the net result may simply be less calories, that that's not as simple as 'calories in calories out', because I'm consuming less as a consequence of the timing, not by consciously eating less. This may be an odd distinction for people who can diet, but for those of us who struggle with weight, it's crucial to success.
The reason I have found it effective is that it's simple to follow. I don't need to count calories, I don't have to learn too much at all, I simply don't eat outside of my hours. Given I've now found I don't feel hungry most days until I start eating, it means I eat less.
Now the net result may simply be less calories, that that's not as simple as 'calories in calories out', because I'm consuming less as a consequence of the timing, not by consciously eating less. This may be an odd distinction for people who can diet, but for those of us who struggle with weight, it's crucial to success.