A recent clinical trial led by researchers at Johns Hopkins Bloomberg School of Public Health found that a modified version of the DASH diet, called DASH4D, is effective in lowering blood sugar levels in adults with type 2 diabetes. The DASH4D diet is similar to the original DASH diet but is lower in carbohydrates and higher in unsaturated fats, with reduced potassium levels to improve safety for individuals with chronic kidney disease.
The study, published in Nature Medicine, involved 89 participants with type 2 diabetes who ate prepared meals at a clinical research center for 20 weeks. The results showed that when participants consumed the DASH4D diet, they had a clinically meaningful reduction in average blood glucose level and an increase in average time spent with blood glucose in the recommended range compared to when they consumed a standard diet.
Specifically, the study found that:
- Participants on the DASH4D diet had blood sugar levels that were on average 11 mg/dL lower than when eating the standard diet.
- Participants on the DASH4D diet stayed in the optimal blood glucose range for an extra 75 minutes a day.
- Larger improvements were seen in participants who had higher blood glucose levels at the start of the trial, with those with HbA1c above 8% experiencing an increase in time in the optimal blood glucose range by about three hours per day.
The researchers hope that the results will lead to incorporating the DASH4D diet into clinical guidelines and improving type 2 diabetes management in the broader population. The study’s findings suggest that the DASH4D diet can be a sustainable and effective approach to managing type 2 diabetes, with potential benefits for population health.