The good news is that if your A1C is on the high side, say, 10% or higher, it will likely start to drop within two to three months (in other words, the higher it is, the faster it comes down). On the other hand, if your A1C is 7.5%, it may take a little longer to lower A1C levels.
It's important to understand that lowering your A1C levels is a gradual (slow) process. As discussed, your A1C, unlike a blood glucose test, measures your average blood sugar over a period of 2 to 3 months. This means, it can take up to 3 months to notice significant changes in your A1C.
If you, from one day to the next, decreased your daily average blood sugar from 300 mg/dl (16.7 mmol/l) to 120 mg/dl (6.7 mmol/l), your A1c would decrease from 12% to 6% in around two months. However, it may not be a good idea to lower your A1c so quickly, as I will explain below.
A 1000mg dose of metformin can decrease an A1C level up to 2% over a 3-month period. A1C or hemoglobin A1C is a 3-month average of blood glucose level. For example, if your A1C was 10%, it may drop to 8% in 3 months.
How I reversed my type 2 diabetes in 3 months | From A1C 7.5 to A1C 5.3
At what A1c should you start metformin?
Recent guidelines recommend considering use of metformin in patients with prediabetes (fasting plasma glucose 100-125 mg/dL, 2-hr post-load glucose 140-199 mg/dL, or A1C 5.7-6.4%), especially in those who are <60 years old, have a BMI >35 kg/m2, or have a history of gestational diabetes.
I learned – as millions of people with type 2 diabetes have – that metformin doesn't immediately lower your blood sugar. It can take four or five days to experience the full benefit, depending on your dosage.
Supplements and medications associated with falsely lowered A1c include vitamin E, Ribavirin, and interferon-alpha. Vitamin E, at doses of 600–1200 mg per day, can reduce protein glycation,10,36 whereas Ribavirin and interferon-alpha can cause a reversible hemolytic anemia.
Chronic stress—especially in relation to living with diabetes—was most strongly associated with A1c, particularly among subgroups that face disproportionate stress, such as minority groups or adolescents/young adults.
Is it possible to have a high A1C and not be diabetic?
Yes, some conditions may raise the level of A1C in your blood, but that does not mean you have diabetes. According to a study by Elizabeth Selvin, a single elevated A1C level greater than 6% was found in the general population with no history of diabetes.
One review of observational studies showed that those who drank more water had a lower risk of developing high blood sugar levels ( 19 ). Drinking water regularly may rehydrate the blood, lower blood sugar levels, and reduce diabetes risk ( 20 , 21 ).
While you may want to lower your A1C levels overnight, that can't happen. It took months for your A1C to get where it is. It will take months to lower. Instead of looking for a quick fix, eat healthily and exercise regularly.
Are home A1C test kits accurate? Most home A1C kits are considered to be as accurate as lab A1C tests. The results are accurate within plus/minus 0.5 percentage points, which is about the same as most lab results.
In general, foods that cause blood sugar level to rise the most are those that are high in carbohydrates, which are quickly converted into energy, such as rice, bread, fruits and sugar. Next are foods high in protein, such as meats, fish eggs, milk and dairy products, and oily foods.
The average A1c was higher in patients with severe vitamin D deficiency compared to those with normal levels of vitamin D. Those with severe deficiency had an average of 8.1%; those with normal vitamin D levels averaged 7.1%.
Measurements of hemoglobin A1c (HbA1c) more accurately identify persons at risk for clinical outcomes than the commonly used measurement of fasting glucose, according to a new study. HbA1c levels accurately predict future diabetes, and they better predict stroke, heart disease and all-cause mortality as well.
What A1c levels require medication/treatment? There is no specific A1c level that makes it necessary for you to be on medication. While an A1c of 6.5% or higher is indicative of diabetes, some people may need to start taking medication for an A1c under 6.5%.
The American Diabetes Association (ADA) also recommends metformin for some patients with prediabetes. Generally, if you are prescribed metformin, you will be on it long term. That could be many decades, unless you experience complications or changes to your health that require you to stop taking it.