A true diabetes preventative would be truly a Godsent for millions of people. Diabetes is the source of many other deseases.
Diabetes preventive is already available to everyone at no cost. Limit all calorie intake during ANY 9 hours in a 24 hour period. And walk 1 mile daily at brisk pace. I was diagnosed prediabetic in mid-50’s. Began walking on golf course gradually increasing to 5 rounds of 18/week. All health issues disappeared. At age 75 I quit the private golf course (unlimited rounds for fixed monthly fee) and now doing boring treadmill 6-7 times every week. Still feeling great at age 80.