We are definitely experiencing a world-wide epidemic of diabetes. While I also think food is one of the primary drivers of this rising prevalence of diabetes, I will be more specific. Processed foods including things like high fructose corn syrup is likely also one of the factors.
I also believe that the demonization of dietary fat and it’s false connection with heart disease adversely affected public health. If you look at the incidence of diabetes and obesity over the last 50 years you can see that they climb steadily as we starting buying low-fat everything combined with all the processed convenience foods.
When I was growing up in the 1950’s and '60’s many families only ate at mealtime. Snacking was not a thing. Unfortunately, that value did not prevail. As I grew older I adopted the habit of regularly eating between meals. We never give our metabolism a rest excpet when we sleep. Even then, eating a late dinner encumbers our sleep with several hours of digestion.
I think we can reverse this alarming trend in diabetes but it will take some serious work. People emotionally defend any suggestion to change the way they eat. We have our work cut out for us. I fear things will get worse before they get better.