Effect of dietary patterns on cardiovascular risk factors in people with type 2 diabetes. A systematic review and network meta-analysis
Authors' conclusion
In patients with type 2 diabetes, all dietary patterns outperformed usual diet in improving body weight and HbA1c after 6 months and clinically relevant cardiovascular risk reduction could be achieved. There was insufficient evidence to select one optimal dietary pattern.
Study context
- Population
- People with T2D73 RCTs
- Comparison
- Eight dietary patterns vs usual diet
- Outcome
- Changes in body weight, blood pressure, HbA1c and lipids
- Follow-up
- 6 and 12 months
Methodological detailsBayesian network meta-analysis
- Bayesian network meta-analysis
Pooled result
As reported in the abstract
6 months
Each group vs usual dietBody weight change, kg (95% CrI)
Low carbohydrate
−4.8(−6.5 to −3.2)
Each group vs usual dietHbA1c change, % (95% CrI)
Mediterranean diet
−1.0(−15 to −0.4)
Further pooled results
| Outcome | RRR (%) (95% CI) |
|---|---|
| Expected RRR for cardiovascular events (estimated from 6-month HbA1c, SBP and LDL-C changes)Mediterranean diet vs Usual diet · largest expected RRR | −16 (−31 to 3.0) |
Effects at 12 months
- Dietary patterns had non-statistically significant 12-month effects
Original publication
Effect of dietary patterns on cardiovascular risk factors in people with type 2 diabetes. A systematic review and network meta-analysis. Diabetes Res Clin Pract. Published 10 December 2022. doi:10.
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