I took Berbine for a while.
I’m not overweight and i’m in really good shape (12.9% body fat at 209 pounds at 60YO), working out 7 days a week.
I primarily took it because i wanted to cut down on my sugar intake- i eat a ton of sweets. I found it did little for me. Started taking/eating raw honey every day to see if that will work.
My wife dropped her total cholesterol by 40 points in 90 days. I dropped my LDL by 15 in the same timespan with no diet modification.
12.9% is underweight and unhealthy. At 209 lb. you would have to be well over 7 foot tall to be at 12.9%.