Can diabetes be reversed? The truth about diabetes remission

You may have seen advertisements promising to “reverse” diabetes in a few weeks. The honest answer is more hopeful than most people expect, and also more careful than those advertisements. Many people with type 2 diabetes can reach a stage where their sugar is in the normal range without any diabetes medicines. Doctors call this remission, not reversal, and the difference in the word matters.

Why do doctors say “remission” and not “reversal”?

“Reversal” sounds permanent. It suggests the diabetes is gone and you never need to think about it again. That is not what happens.

Type 2 diabetes is a long-term condition. The things that made it appear in the first place, such as your genes, the fat stored in your liver and pancreas, and your family history, are still there even when the sugar is normal. If weight comes back or habits slip, the sugar usually rises again.

In 2021, major diabetes and hormone organisations, including the American Diabetes Association, the European Association for the Study of Diabetes, Diabetes UK and the Endocrine Society, agreed on one word: remission. It is the same idea as remission in some cancers. The disease is quiet, but the risk is still there, so you keep getting checked.

Calling it remission protects you. People who believe their diabetes is “reversed” often stop their follow-up visits, and that is exactly when complications can creep in unnoticed.

What exactly counts as remission?

The international definition is simple:

• Your HbA1c is below 6.5%.
• It stays there for at least three months after all diabetes medicines have been stopped by your doctor.
• You keep having check-ups, usually an HbA1c at least once a year, to make sure it stays there.

If you are still on a diabetes medicine, even a small one, it is called good control, not remission. That is also a good result, just a different one. You can see what your HbA1c means in everyday sugar terms with the HbA1c to average glucose converter.

Who has the best chance of remission?

Remission is mainly possible in type 2 diabetes. Your chances are better if:

• You were diagnosed recently, ideally within the last few years.
• You are carrying extra weight, especially around the waist.
• You have fatty liver.
• Your pancreas still makes a fair amount of insulin.
• You are not yet on insulin, or have only needed it for a short time.

Remission, as defined above, is a term for type 2 diabetes. Some other kinds of high sugar improve once their cause is removed, for example diabetes caused by steroid medicines, or gestational diabetes, which usually goes away after delivery. Doctors do not call these remission in the same sense, and both still carry a higher risk of type 2 diabetes later.

Remission is not possible in type 1 diabetes, where the immune system has destroyed the insulin-making cells. It is also not expected in most genetic forms of diabetes such as MODY, or in diabetes caused by pancreas damage. If anyone offers to take a person with type 1 diabetes off insulin, that is dangerous.

Many Indians develop diabetes at a lower body weight than people in Western countries, because we tend to store fat around the middle and in the liver. Measuring your waist is often more useful than weight alone. Try the waist-to-height ratio calculator or read about the Body Roundness Index.

How do people achieve remission?

The common thread in almost every route is losing weight, particularly fat from the liver and pancreas. When that fat goes down, the pancreas often starts working better again.

The main routes your doctor may discuss are:

• Diet and activity changes, done in a structured way with support.
• Low-calorie meal-replacement programmes, supervised by a medical team, followed by a slow return to normal food.
• Weight-loss medicines prescribed by a doctor. Note that newer medicines in the GLP-1 family also lower sugar directly, so while you are on them it is counted as control rather than remission.
• Bariatric (weight-loss) surgery, for people with significant obesity.
• A short course of intensive insulin soon after diagnosis, in selected people, to give the pancreas a rest. This is decided and supervised by a specialist.

Never stop your diabetes medicines on your own to “test” whether you are in remission. Stopping suddenly can push your sugar very high. Any reduction should be planned with your doctor while you check your readings.

What do the studies show?

The best-known study is DiRECT, from the UK. People with type 2 diabetes of less than six years followed a supervised meal-replacement programme and then long-term support. After one year, nearly half were in remission. After two years, just over a third were still in remission.

The five-year follow-up, published in 2024, is the honest part of the story. Only about one in eight of those who kept getting support were still in remission at five years, although they still had better sugar levels and fewer serious health problems than the comparison group. Remission is real, but staying there is hard and needs ongoing help.

Weight-loss surgery has shown higher remission rates in people with significant obesity, but diabetes can return over the years in some people, especially if weight comes back.

What are the benefits?

If you reach remission, or even get close to it, you may:

• Lower your risk of heart, kidney, eye and nerve problems linked to high sugar.
• Need fewer medicines and fewer tests.
• Feel more energetic.

Even if full remission does not happen, the weight loss and healthier habits along the way usually improve your blood pressure, cholesterol and fatty liver.

What are the catches?

• It can come back. Weight regain is the most common reason.
• It needs effort for life. Remission is a journey, not a one-time event.
• Beware of false promises. There is no magic product, herbal powder or short programme that removes diabetes for ever. Be careful of anyone who sells a “reversal” package and asks you to stop your medicines.
• Complications still need screening. Eye checks, kidney tests and foot checks continue even in remission, because years of high sugar before remission still count.

What should you ask your doctor?

• Am I a good candidate for remission, given how long I have had diabetes?
• What type of diabetes do I have? Is it definitely type 2?
• How much weight loss would make a real difference for me?
• Which approach suits me: diet, medicines or surgery?
• How will we reduce my medicines safely if my sugar improves?

If you want a detailed plan, an endocrinologist can assess your type of diabetes, your insulin reserve and your options. You can book a consultation to discuss it.