IF doesn't help people perform the calorie deficit part either. You can eat way more calories than you can burn off during eating periods.

Everything comes down to discipline.

I don't do IF. I just do calorie counting with an app. In other words, I just do CICO. This research is a validation that I don't need to do IF to lose weight. It feels smarter and better to just eat at normal times and then count the calories. Less social life impact. Less hunger pains. Actual proof that you're eating fewer calories than you need.