Interesting with regard to myself I will never know if my reading is from weight loss or metformin.
Hba1c before metformin 6.7./ 6 months later 6.8.on metformin
25 /30 kg lighter 5.4 / 5.5.
10 years later.Doc said insulin in 10 years so I'm ok still on metformin only Changing my diet was one of...