An A1c tester is the most accurate test
as it measures glucose
over the past 2-3 months. Why? Quite simple, red blood
cells live on
average 2-3 months, excess glucose attaches to new RBC's and the A1c captures this. However, the A1c does not account for your daily individual readings like the One-Touch does.
Most important of all is making a lifestyle change - proper nutrition, maintaining normal body weight, and 30 minutes of daily physical exercise all helps to lower your glucose levels.