I think it's great that you've managed to get your A1C to this level in such a short time. You asked how low you should go, IMHO, I think the lower you can go the better you're going to be longterm. I have thought about asking the doc to increase my metformin to see if I can get to an even better A1C than my last 6.2. I wanted to share the information below with you. I think it's very interesting. Again, you should be commended on getting such great control so soon.
"a new study from the university of cambridge school of clinical medicine has recently discovered that non-diabetics are also at much higher risk of heart disease and other fatal illnesses if their blood hba1c levels are above normal.
the study, headed by kay-tee khaw, m.d., appears in the september 21 issue of annals of internal medicine.
4,662 men and 5,570 women between the ages of 45 and 79 years old participated in the study from 1995 to 1997, with a follow-up period to 2003.
it was discovered that for both men and women there is a strong relationship between high average blood sugar levels and cardiovascular disease. in fact, high hba1c levels appear to be a risk factor for deaths from all causes. the study found that this is true even for people who do not have diabetes.
"normal" hba1c levels range from 4% to 6%. three-fourths of the 521 deaths from all causes among study participants were people with moderately elevated average blood sugar levels between 5% and 6.9%. those with the lowest rates of heart disease and death had hba1c levels below 5%."