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Can type 2 diabetes go into remission without surgery? A review of trials
Type 2 Diabetes Remission: A Systematic Review and Meta-analysis of Nonsurgical Randomized Controlled Trials.
Overview
Sherifali DT et al.. Diabetes Care 2025 · PMID 40982327 · DOI 10.2337/dc25-0562
Structured diet and lifestyle programmes made remission about six times more likely, mainly in people with recently diagnosed type 2 diabetes.
Does the study support the specific claim? Partly · Methodological quality: high
Plain-language summary
Study explained simply
- What did the researchers want to find out?
Pool RCTs of nonsurgical remission.
- How was the study done?
Meta-analysis of 18 RCTs.
- How many people, animals or samples were studied?
11 countries.
- What was actually found?
RR 5.80 (nonpharmacological).
- How large was the observed effect?
RR 1.75-5.80.
- What do the results mean in everyday life?
Early type 2 diabetes can go into remission with strict programmes.
- What are the study's limitations?
Heterogeneity; short follow-up.
- What does it say about Elawady's specific claim?
Supports the T2D kernel, not cure of T1D or long-standing insulin-treated diabetes.
- Do the results apply to Germany and Europe?
Applicable.
- What can explicitly not be concluded from this study?
Cannot show permanent cure.
Scientific in-depth review
1. Full reference
- Authors
- Sherifali DT et al.
- Journal
- Diabetes Care
- Year
- 2025
- Identifier
- PMID 40982327 DOI 10.2337/dc25-0562
- Verification
- verified – PubMed efetch 2026-10-26; Crossref 2026-10-26
- Retracted
- no
- Corrections
- none
- Extent checked
- full text
- Conflicts of interest and funding
Canadian Institutes of Health Research and McMaster Evidence Review and Synthesis Team (full text).
2. Research question
Do nonsurgical interventions induce T2D remission?
3. Study design and population
- Study design
- Meta-analysis – Systematic review and three-level random-effects meta-analysis of RCTs
- Population
Adults with T2D in RCTs (11 countries)
- Country
Multinational
- Period
Search to April 2025
- Sample size
18 RCTs
- Inclusion and exclusion criteria
RCTs of multimodal pharmacological or nonpharmacological remission interventions
4. Methods and endpoints
- Exposure / intervention
Remission interventions (diet-based or multimodal pharmacological)
- Comparator
Control care
- Endpoints
Remission, HbA1c, weight, QoL, adverse events
- Statistical methods
Three-level random-effects model; I2
5. Actual results
- Results
Remission more likely with multimodal interventions RR 1.75 (1.49-2.04) and nonpharmacological interventions RR 5.80 (4.28-7.87). Diabetes duration in trials 14.6 months to 6.7 years; participants mostly insulin-naive (10 studies), 5 studies included some insulin users (1-96%). Mostly low risk of bias (12 studies). Limitations: heterogeneity, strict protocols, narrow selection, inconsistent remission definitions.
- Absolute risks
not reported
- Authors' conclusion
With specific protocols, tailored approaches can induce remission in newly diagnosed T2D for patients able to follow strict protocols; long-term sustainability needs research.
6. Strengths
- RCTs only
- Recent
- Risk-of-bias assessed
7. Weaknesses
- Heterogeneous interventions and definitions
- Short follow-up
- Selected participants
8. Risk of bias
- Orienting tool
- AMSTAR 2
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- low
- Rationale
Moderate-to-high confidence; registered methods described.
9. Assessment of the statistical interpretation
Relative effects large; absolute remission rates vary widely; overlaps with DiRECT/DIADEM-I (not independent).
10. Relevance to the specific claim
Confirms that remission of early T2D through structured nonsurgical programmes is real (the correct kernel) but limited to early disease, strict protocols and uncertain durability.
11. Independent contrary findings
12. Transferability to Germany and Europe
Directly applicable; same biology and clinical standards in Europe.
13. Overall methodological judgement
Best current synthesis on nonsurgical remission.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | high |
| Risk of bias | low |
| Precision of results | moderate |
| Directness | direct |
| Reproducibility | replicated |
| Consistency with the overall evidence | consistent |
| Regional transferability | high |
| Adequacy of the interpretation (by the archive) | not applicable |