I feel more like that's saying "30% of people will only need to lose 10% of their weight to make a significant change. You might be one of those people. But you might be one of the 70% who is not and after losing 10%, you might need to continue to make changes. So start with the 10% and see where you get."

My bigger question is really whether the cause and effect logic is holding up here. My understanding from the science is that obesity doesn't cause T2D, rather that T2D causes obesity. So if you control glucose and insulin and begin to heal T2D then you'll lose weight.

So, all these people who think their diabetes is getting better because they lost 10% of their body weight, maybe it's really that they're lost weight because their diabetes is better.