I'm surfering from diabetes for the past 30yrs. I was diagnosed at the age of 18.

At 1st by struct no sugar diet & exercise, I managed to control my sugar level up to 6-7mmol. However as yrs passby, I hv to depend on medications such as metformin & combi of diamicron.

However for the past 1 decade, medication also failed to control my level which hv since went up to avg 11-12mmol fasting. By this time, my Doc suggested me to switch to insulin (every meals & 1 b4 sleep) + 750mgx2 metformin daily. Now I'm under controlled for the past 8yrs.

When I asked the doc why she maintained the 750mgx2 metformin, she told me recent tesearch showing anti-cancer property on metformin.

So metformin eventhough having bad lousai effect, will benefit in long run. Me too can't torelate higher than 1500mg of metformin/day. & surely loudai if too much but do discuss with ur doctor to reduce the intake and combine wth another drug or even better, start on insulin.

Do read this metfomin -possible anti-cancer agent article
https://www.ncbi.nlm.nih.gov/pubmed/24114491