Can Type 2 Diabetes Be Reversed? What the Evidence Really Shows

Can type 2 diabetes be reversed? It is one of the most common questions asked at a diabetes consultation. And for a long time, the standard answer from the medical profession was no.

That answer has changed.

The evidence now clearly shows that for a meaningful number of people, type 2 diabetes can go into remission. That means blood sugar returning to a normal range without the need for medication.

What does remission actually mean?

Remission does not mean the underlying tendency towards diabetes disappears entirely. It means blood sugar levels return to below the diagnostic threshold and stay there for at least 3 months, without medication being used to achieve it.

The definition used by Diabetes UK, the ADA, and other major bodies has 3 criteria:

1. An HbA1c below 48 mmol/mol
2. Sustained for at least 3 months
3. Achieved without glucose-lowering drugs

An important point: if your HbA1c is below 48 mmol/mol but you are on diabetes medication, this does not count as remission. The reduction in HbA1c must be driven by weight loss, not medication.

This is not a cure. Regular monitoring is still needed. But it is a genuinely significant improvement in health outcomes.

Who is most likely to achieve remission?

The evidence points most strongly towards people with these 3 characteristics:

1. Diagnosed with type 2 diabetes relatively recently, ideally within the last 6 years
2. Have lost a significant amount of weight, particularly if carrying excess weight at diagnosis
3. Had a relatively modest HbA1c at the time of diagnosis

So what is the evidence behind this?

A landmark study, the DiRECT trial, was designed to address this question. The 2 most important outcomes were:

1. Nearly 50% of participants who followed an intensive dietary programme achieved remission at 1 year
2. Around 33% maintained remission at 2 years

These are not small numbers.

How was remission achieved in the DiRECT Trial?

The DiRECT trial followed a structured, stepped approach. Here is how it worked:

Step 1: Medication withdrawal

• All antidiabetic medications were withdrawn at the start
• All antihypertensive medications were also withdrawn at the start

Step 2: Total Diet Replacement (TDR)

• A formula diet of 825 to 853 kcal per day
• Duration: 12 to 20 weeks (3 to 5 months)

Step 3: Food reintroduction

• Structured, stepped reintroduction of normal food
• Duration: 2 to 8 weeks

Step 4: Weight loss maintenance

• Long-term structured support programme (Counterweight-Plus)
• Aimed at sustaining weight loss beyond the diet replacement phase
• In the 5-year extension: continued low-intensity dietary support offered annually

The key principle: sustained weight loss was the dominant driver of remission. Every component of the programme was built around achieving and maintaining that weight loss.

So can type 2 diabetes be reversed through lifestyle alone?

The approaches most supported by evidence are:

• Weight loss: losing just 10% to 15% of body weight can produce significant improvements in blood sugar control
• Low carbohydrate eating: reducing refined carbohydrates and added sugars lowers the glucose load the body needs to manage after each meal
• Structured dietary programmes: very low calorie approaches under medical supervision have produced some of the most impressive remission rates in clinical trials
• Regular physical activity: even moderate movement directly improves how muscles absorb and use glucose

These approaches work best in combination and with proper support. Attempting an unsupervised crash approach is not recommended.

What did the trial show for people who did not achieve remission?

Not achieving full remission did not mean no benefit. Many participants who did not reach remission still experienced meaningful improvements:

• Reduced medication burden. Many were able to reduce or stop some of their diabetes medications.
• Improved HbA1c. Blood sugar levels improved significantly, even without meeting the remission threshold.
• Some weight loss. Participants lost meaningful amounts of weight, with positive effects on overall health.
• Improved metabolic markers. This includes better cholesterol levels and improved liver function.

What if remission is not achievable?

For many people, particularly those diagnosed longer ago, with higher initial HbA1c levels, or with other complicating factors, full remission may not be realistic. That does not mean improvement is impossible.

Better blood sugar control significantly reduces the risk of complications. Partial improvement still matters. The goal does not have to be remission for a change in approach to be worthwhile.

When to seek specialist advice

If you have been diagnosed with type 2 diabetes and want to understand whether remission is a realistic goal for you, a specialist consultation is a good starting point. It allows a full review of where you are now, what your options are, and what a realistic plan looks like.

At IM Clinic, Dr Imran Mughal offers private specialist consultations for people with type 2 diabetes and prediabetes across the UK. Appointments are available online.

The Key Points

• Remission means HbA1c below 48 mmol/mol for at least 3 months without medication, not a permanent cure
• If your HbA1c is below 48 on medication, that is not remission — weight loss must be the driver
• The DiRECT trial found nearly 50% of participants achieved remission through an intensive dietary programme
• The DiRECT approach used total diet replacement of 825 to 853 kcal per day, followed by structured reintroduction and long-term support
• Even those who did not achieve remission saw improvements in HbA1c, weight, medication burden, and metabolic markers
• Weight loss, low carbohydrate eating, and regular activity are the most evidence-backed routes to remission
• Better blood sugar control significantly reduces the risk of complications, even if full remission is not achieved
• A specialist consultation can help you understand whether remission is a realistic goal for your situation

References

Lean MEJ et al. Primary care-led weight management for remission of type 2 diabetes (DiRECT). The Lancet. 2018. https://doi.org/10.1016/S0140-6736(17)33102-1

American Diabetes Association. Standards of Care in Diabetes 2025. Diabetes Care. 2025. https://diabetesjournals.org/care

Diabetes UK. Putting Type 2 Diabetes into Remission. 2024. https://www.diabetes.org.uk/remission

NHS. Remission in Type 2 Diabetes. 2023. https://www.nhs.uk/conditions/type-2-diabetes