To the Editor: In their randomized controlled trial, Dr Jenkins and colleagues1 reported moderately reduced levels of hemoglobin A1c (HbA1c) in patients with type 2 diabetes treated with a low–glycemic index diet compared with a high–cereal fiber diet over 6 months. They concluded that low–glycemic index diets may be useful as part of the strategy to improve glycemic control in patients with type 2 diabetes.
Weickert MO, Pfeiffer AFH. Low–Glycemic Index vs High–Cereal Fiber Diet in Type 2 Diabetes. JAMA. 2009;301(15):1538-1539. doi:10.1001/jama.2009.483