Mixed
Adherence to high-quality dietary patterns (specifically DASH, aHEI, or aMED scores) is associated with a 9–13% reduced risk of type 2 diabetes per 1-SD increase in score.
Adopt a dietary pattern rich in whole grains, vegetables, fruits, nuts, legumes, and low-fat dairy, while limiting red/processed meat, sugar-sweetened beverages, and trans fats. This pattern (reflected in DASH, aHEI, or aMED scores) is associated with a 9–13% lower risk of type 2 diabetes. You do not need to follow every rule perfectly; focusing on these core components provides substantial benefit.
A 1-SD increase was associated with 9–13% reduced risk (P < 0.01)
Why this rating
Large prospective cohort (n=41,615), long follow-up (20 years), rigorous adjustment for confounders, though observational design limits causal inference.
Source
Diet-Quality Scores and the Risk of Type 2 Diabetes in Men
Lawrence de Koning et al. · Diabetes Care · 2011
DOI 10.2337/dc10-2352
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