insulin resistance syndrome
"Life changing!  500 mg 1x/ day, and low carb diet ( 7+/- servings a day and when I started, I was 375 lbs)  very compliant, 60 lb loss in 60 days, added daily hour of cardio (Zumba), continued and in 24 months lost 150 lbs. 



ALL side effects of metformin are indicators that you're eating too many carbs.  A doctor that prescribes metformin that doesn't also prescribe a low carb diet is being absurd.  I've been amazed at how many people I've talked to over the years that have had that happen.  Diarrhea, nausea, metallic taste, all mean you're eating the wrong things!   They're not a reason to quit the meds.  They're proof you need to eat low carb.  7 years later, still down 100, and increasing dose to continue losing."