Interesting study, good work by authors, I read it as little to no effect though. Confidence interval includes 0.14 kg of difference in weight loss. But I couldn’t read the full paper to show how they tested compliance between the groups.

For me, fasting (skipping breakfast or breakfast and lunch) and eating more vegetables (to feel full) are the easiest ways to hit calorie targets, but I suspect that is the only effect.

So the practical takeaway of this, and all diets, is focusing on what is the most sustainable way to hit calorie targets.