> In all, sixty-five overweight and obese males (n 26) and females (n 39) were recruited onto this randomised, cross-over design study. Descriptive characteristics of participants are displayed in Table 1. All participants were non-smokers, physically inactive (≤2 h/week of exercise over the previous 6 months), weight stable (±2 kg for the previous 3 months) and not taking medication known to affect metabolism or appetite.

I don’t see anything about the backgrounds of the participants. Of the people I know it seems the people who grew up eating rice are more satiated by carbs while those who ate more meat centric diets are more satiated by meat.

Nutrition is super complicated though. There are effects of genetic background and the way digestion is impacted by the microbiome which is itself dependent on the person’s early life. There are hormonal and microbiome feedback loops that affect digestion and feelings. There are immune system changes triggered by obesity that don’t quickly recover even with weight loss.

The basic science around it is super interesting and valuable but taking action based on any one study is not likely to have a positive outcome.