My mom is 48 years old.she has diabetics nearly 10years.she has been taking a tablet Metformin 500mg during morning and has been taking insulin 12ml during night time.she is in sincere diet to reduce the blood
sugar level.But the blood sugar is not in control.In empty stomach she has the blood sugar level at 215mg.And she has done the diabetic retinopathy laser treatment.please tell us some suggestions to reduce the blood sugar level.shall we increase the insulin level to 20ml?