Glad to hear you are eating healthily. Sounds a bit like my diet... but I rarely eat rice, just spuds. I am fortunate to live with a woman that is an exceptional gardener.
That's exactly what is explained in the interview with Tm Ferriss and Peter Attia. NUSI is currently doing just that, using metabolic chambers and human volunteers. Dr Attia would be happy to have the hypothesis that carbohydrates are the driver of obesity confirmed but equally happy to see it disproved. NUSI has hired scientists and laboratories that don't see eye to eye and will keep the project honest. The science just hasn't been done and the world has gotten fatter since industry and government started meddling in food in a big way.
Ate states, once again, that everyone knows the second law of thermodynamics, but just saying that putting on weight ls due to eating more than one uses is uninteresting. He makes a little analogy something like Bill Gates is wealthy because he spends less than he earns. It's what is making people overweight and obese that is interesting and important.
NUSI is also addressing the growing problem of non-alcoholic liver disease in children (liver surgery is Attia's specialty). The reigning hypotheses are too many calories, too much sugar or too much fructose.