Research
Macro partitioning
Implementing a low-glycemic index (GI) diet provides an additional benefit to blood glucose control (lowered A1C) compared to diets focusing solely on total carbohydrate amount.
In addition to managing total carbohydrate grams, try to choose carbohydrate sources with a lower Glycemic Index (GI), such as legumes, whole grains, and non-starchy vegetables, rather than refined grains and sugars. This can provide an additional small but meaningful improvement in your long-term blood sugar control (A1C).
GoodSupportsHIGH confidence
Their findings indicate that implementing a low– glycemic index diet lowered A1C values by 0.43% when compared with a high– glycemic index diet.
Why this rating
Based on a meta-analysis of randomized controlled trials.
Source
Dietary Carbohydrate (Amount and Type) in the Prevention and Management of Diabetes
Nancy F. Sheard et al. · Diabetes Care · 2004
DOI 10.2337/diacare.27.9.2266
narrative_reviewCited 471×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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