Can Prediabetes Be Reversed? What the Evidence Says
For some people, yes: with structured lifestyle change, blood sugar can return to the normal range, and the CDC says such programs can cut the risk of type 2 diabetes in half. It is not guaranteed and not a cure, so retesting matters.
What “reversed” means
Prediabetes is defined by test results: an A1C of 5.7 to 6.4%, fasting glucose of 100 to 125 mg/dL, or a 2-hour value of 140 to 199 mg/dL (ADA 2026, Section 2). “Reversed” means repeat tests fall back below those ranges. The ADA calls it a return to normal glucose regulation. It means lower risk, not zero risk.
What the evidence shows
- Lifestyle programs lower the chance of type 2 diabetes. The CDC says people who make these lifestyle changes can cut their risk in half. The ADA recommends referral of people with prediabetes to an intensive lifestyle program (Section 3).
- Eating and activity both count. The NIDDK lists healthy eating and being active as steps to prevent type 2 diabetes. See the prediabetes diet page.
- Some people take medicine. The ADA discusses metformin for selected people at high risk. That is a decision between you and your clinician.
- It can come back. The ADA recommends testing at least yearly in people with prediabetes.
What to do
- Get a confirmed blood test. Start with the risk test if you have not been tested.
- Find a CDC-recognized program with the Diabetes Prevention Program finder.
- Ask your clinician how often to retest and what targets suit you.
Ignore products or programs that promise to cure or reverse diabetes quickly. No official source supports them.
Frequently asked questions
Can prediabetes go back to normal?
For some people, yes. The ADA describes lifestyle change as able to lower the chance of progressing and, in research, to bring glucose back to the normal range for some participants. It is not guaranteed, and it can come back if habits change or risk factors remain.
Is it a cure?
No. Prediabetes means glucose is higher than normal but below the diabetes range. Bringing it down is risk reduction, and it needs follow-up testing, not a one-time fix.
How do I know it is back to normal?
Only repeat blood tests can show it. Normal on the ADA scale is an A1C below 5.7%, fasting glucose under 100 mg/dL, and a 2-hour value under 140 mg/dL. Ask how often to be retested; the ADA says yearly for people with prediabetes.
What helps most?
The strongest evidence is for structured lifestyle programs such as the CDC National DPP. The ADA also describes some medicines for people at high risk. Whether any of that fits you is a decision for you and your clinician.
Do supplements or special diets reverse it?
We found no official source showing that supplements reverse prediabetes, and we do not recommend any. Be careful with products that promise a cure.
Information only, not medical advice. Your care team may set different targets for you, and only a lab test ordered by a clinician can diagnose diabetes or prediabetes. See our medical disclaimer.
Sources
- ADA Standards of Care in Diabetes—2026, Section 3: Prevention or Delay of Diabetes and Associated Comorbidities
- ADA Standards of Care in Diabetes—2026, Section 2: Diagnosis and Classification
- CDC: National Diabetes Prevention Program lifestyle change program
- NIDDK: Preventing Type 2 Diabetes
Last reviewed: by the Diabetes Blogs editorial team. Information only, not medical advice.
