An A1c of 6.8% falls in the diabetes range, which starts at 6.5%. It’s not a catastrophic number, but it does mean your average blood sugar over the past three months has been higher than normal. The good news: 6.8% is close to the most common treatment target, and with the right changes, many people bring it down relatively quickly.
What 6.8% Means in Everyday Terms
Your A1c reflects how much glucose has attached to your red blood cells over roughly three months, which is the average lifespan of those cells. An A1c of 6.8% translates to an estimated average blood sugar of about 148 mg/dL. For context, a fasting blood sugar in someone without diabetes is typically under 100 mg/dL.
The standard diagnostic ranges break down like this:
- Normal: below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or above
At 6.8%, you’re just above the diabetes threshold. If this is your first result in this range, your doctor will likely want to confirm it with a second test before making a formal diagnosis.
How Close You Are to the Target
The American Diabetes Association recommends an A1c below 7% for most nonpregnant adults with diabetes. At 6.8%, you’re already under that widely used target, which is genuinely encouraging. Being below 7% is associated with meaningfully lower risk of complications affecting the eyes, kidneys, and nerves compared to higher levels.
That said, “below 7%” isn’t the finish line for everyone. Research shows that keeping A1c below 6.5% is linked to even lower risk of microvascular complications like retinopathy and nerve damage. So while 6.8% puts you in a relatively good position compared to someone at 8% or 9%, there’s still benefit in bringing it down further if you can do so safely.
For some people, a higher target makes more sense. Older adults with multiple chronic conditions are often advised to aim for 7% to 8%, or even up to 8.5% in cases of very limited life expectancy or frailty. The reason is simple: pushing blood sugar too low carries its own risks, including dangerous episodes of hypoglycemia, and those risks grow with age and complexity of health conditions. If you’re otherwise healthy and not on medications that cause low blood sugar, aiming closer to 6.5% is reasonable.
Pregnancy Changes the Target
If you’re pregnant or planning to become pregnant, 6.8% is higher than recommended. Guidelines call for an A1c below 6.5% before conception to reduce the risk of birth defects, preeclampsia, and preterm delivery. During pregnancy itself, the ideal target drops to below 6% if that’s achievable without frequent low blood sugar episodes. This is one situation where the difference between 6.8% and 6.0% carries real clinical weight.
What It Takes to Lower 6.8%
A 6.8% A1c is very workable. You don’t need a dramatic overhaul to see improvement. Research tracking real-world patients in intensive lifestyle programs found that people starting with modestly elevated A1c levels (like yours) achieved average reductions of about 0.5 percentage points through a combination of dietary changes, increased physical activity, weight loss, and behavioral strategies. That alone could bring you to 6.3%, which is technically in the prediabetes range rather than diabetes.
People with higher starting levels saw even bigger drops, up to 2.5 percentage points, which underscores an important principle: the further you are from normal, the more room there is for improvement. At 6.8%, you’re close enough to the target that even modest, consistent changes can make a noticeable difference within one testing cycle.
The changes that tend to move A1c the most are reducing refined carbohydrates and added sugars, losing 5% to 7% of body weight if you’re carrying extra, and getting regular aerobic exercise (walking counts). These aren’t quick fixes. They work because they lower your average blood sugar day after day, and that accumulated effect is exactly what A1c measures.
How Long Before You See a Change
Because A1c reflects a three-month average, it won’t budge overnight. Red blood cells live for about 90 to 120 days, and the glucose attached to them stays put for the cell’s entire life. If you make meaningful changes today, your next A1c test in three months will reflect a blend of your old patterns and your new ones. The test after that will more fully reflect your current habits.
Most people with diabetes are advised to test A1c at least twice a year. If you’re actively working to bring your number down or adjusting medications, testing every three months gives you faster feedback. That’s frequent enough to see whether what you’re doing is working without being so frequent that normal fluctuations create unnecessary anxiety.
The Bigger Picture at 6.8%
A1c is one of the most important numbers in diabetes management, but it’s an average, and averages can hide important details. Two people can both have a 6.8% A1c while having very different daily blood sugar patterns. One might stay steadily around 148 mg/dL. Another might swing between 80 and 220 mg/dL throughout the day and land at the same average. The second pattern is harder on the body even though the A1c looks identical.
If you have access to a continuous glucose monitor or regularly check blood sugar at home, those readings add context your A1c can’t provide on its own. Paying attention to how much your blood sugar spikes after meals, how low it dips overnight, and how stable it stays throughout the day gives you a much fuller picture of your metabolic health than a single percentage ever could.