I was just slightly overweight (probably "average" by american standards).
Hearing the doc say "Prediabetes", plus having heart disease in the family and sky high cholesterol, I decided to try losing a few pounds (for me, that meant deleting all food delivery apps from my phone...)
2-3 months later I had lost maybe 10 lbs (more than the few kgs in the article). Got retested, and I was no longer prediabetes and cholesterol dropped to normal levels.
Since then, I've continued to lose another 40 lbs and am no longer considered overweight.
The reason I'm sharing the anecdote is to share my surprise that almost all of the improvement in blood test came from the first 10 lbs (the extra 40 lbs I lost maybe improved numbers a bit more, but 90% improvement came after the first 10 lbs)