Echoing the other reply, there is a raging scientific debate between the energy balance model and the carbohydrate insulin model of obesity and diabetes. There are large cohorts of very smart scientists on both sides of this debate.
FYI, per HN guidelines, so you can reflect on your future contributions:
- Comments should get more thoughtful and substantive, not less, as a topic gets more divisive.
- Please don't post shallow dismissals, especially of other people's work. A good critical comment teaches us something.