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A modified version of the Dietary Approaches to Stop Hypertension (DASH) diet is effective at lowering glucose in adults with type 2 diabetes, according to a study published<\/a> online Aug. 5 in Nature Medicine.<\/p>\n Michael Fang, Ph.D., from Johns Hopkins University in Baltimore, and colleagues conducted a crossover trial in which 89 adults with type 2 diabetes were assigned to four isocaloric diets in a random order: the DASH4D diet (a DASH-style diet tailored for diabetes) or a comparison (typical American) diet, each with higher (3,700\u2009mg\/day at 2,000\u2009kcal) or lower (1,500\u2009mg\/day at 2,000\u2009kcal) sodium, with each lasting five weeks.<\/p>\n The researchers found that the DASH4D (versus comparison) diet significantly reduced mean glucose<\/a> (mean difference,\u2009\u221211.1\u2009mg\/dL) and increased time in range (mean difference,\u2009+5.2 percentage points). There was no effect on the coefficient of variation. For secondary outcomes, glucose standard deviation and time spent with hyperglycemia<\/a> (glucose >180\u2009mg\/dL and >250\u2009mg\/dL) were lower in the DASH4D diet. However, time spent with hypoglycemia (glucose\n<\/p>\n “The original DASH diet<\/a> has long been recommended for people with diabetes<\/a> and other health conditions due to its effectiveness in lowering blood pressure, but this is the first time a controlled study has shown a significant improvement in glucose control as well,” senior author Elizabeth Selvin, Ph.D., also from Johns Hopkins, said in a statement.<\/p>\n More information:<\/strong>
\n Michael Fang et al, DASH4D diet for glycemic control and glucose variability in type 2 diabetes: a randomized crossover trial, Nature Medicine (2025). DOI: 10.1038\/s41591-025-03823-3<\/a><\/p>\n