For people living with diabetes, choosing staple foods does not mean completely cutting off carbohydrates, but rather making careful selections. In my opinion, coarse grains and whole-grain staples are more suitable for individuals managing blood glucose.
Foods such as oats, brown rice, buckwheat, and whole-wheat bread have relatively low glycemic indexes. They also contain more dietary fiber and phytonutrients, which can slow down the rate of blood glucose rise.
Studies show that diabetic patients who consume whole grains long-term experience an average reduction of 0.5–0.7% in glycated hemoglobin (HbA1c), alongside significantly decreased blood glucose fluctuations—both critical for long-term glycemic management.
Additionally, the way you eat staples matters equally. Even if you choose low-glycemic coarse grains, eating large quantities alone may still trigger sharp blood glucose spikes.
Physicians recommend pairing staples with moderate amounts of protein and healthy fats on your plate. This delays carbohydrate absorption and lowers postprandial blood glucose peaks. For example, combining staples with eggs, fish, soy products, or a small handful of nuts results in a much slower glycemic rise than eating plain rice or glutinous fast food alone.
Diabetic patients should prioritize mixed refined-and-coarse staple combinations. On one hand, increase the proportion of coarse grains; on the other hand, moderately choose minimally milled rice and flour. The following practical methods yield effective results:
Eating plain white rice causes immediate blood glucose elevation. However, cooking white rice or congee mixed with brown rice, corn, millet, oats, beans, or sweet potatoes slows the glycemic rise significantly.
Eating plain white bread also raises blood glucose rapidly, but switching to whole-grain bread and replacing regular noodles with buckwheat noodles reduces the speed of glycemic elevation.
Leverage the glucose-lowering benefits of mixed legumes: use them to make various staples, and different bean fillings also pair well with staple dishes. You can also incorporate coarse grains into side dishes—cooked kidney beans, spotted beans, or red beans seasoned lightly make delicious cold dishes or stews that effectively stabilize blood glucose.
One essential note: the postprandial blood glucose response of diabetic patients is closely related not only to staple food types but also to cooking methods and eating order.
Even lightly processed whole coarse grains exert a milder glycemic impact than glutinous products. In short, prioritize the inherent glycemic characteristics when selecting staples, rather than relying on cooking techniques to greatly reduce risks.
Recommended staple portions for diabetics: Control daily intake at 200–400 grams. For those engaged in heavy manual labor, daily staples should not exceed 450 grams.