Rice Strategies

Rice is a staple food across India and does not need to be eliminated for prediabetes management. What matters most is how much you eat, what you eat it with, and the type of rice you choose. Small adjustments to your rice habits can reduce your post-meal glucose spike by 20–40 mg/dL.

How It Works

Rice has a high Glycaemic Index (GI) — a measure of how quickly a food raises blood glucose.

• White rice GI: 73–78 (high)
• Brown rice GI: 58–70 (medium-high, about 15% lower than white rice)
• Parboiled rice (boiled rice/ukda chawal) GI: 65–70 (slightly lower than regular white rice, but the benefit is modest)
• Foxtail millet GI: approximately 50 (significantly lower)

Glycaemic Load (GL) adjusts for portion size and is more practical:

• 1 cup (200g cooked) white rice alone: GL approximately 33 — very high
• ½ cup (100g cooked) white rice + 1 cup dal: effective GL drops to approximately 16–18 — medium

Cooling and reheating: When cooked rice is cooled (in a fridge overnight) and then reheated, some of the starch converts to resistant starch — a form that does not digest easily and therefore raises glucose more slowly. The GI reduction is approximately 10–15%. Making extra rice at dinner and using it for breakfast the next day is an easy way to apply this benefit.

Your Target

Aim to keep rice portions to half a cup (cooked) per meal, always paired with dal, vegetables, or protein. This combination reduces the effective glycaemic load of the meal from very high to medium.

Why This Matters

Large portions of plain white rice — particularly without adequate fibre, protein, or fat as accompaniments — produce the largest post-meal spikes in most people eating a South Indian diet. This is the single most common driver of elevated post-meal readings seen in glucose tracking data.

What You Can Do

• Use a smaller bowl or serve rice last on the plate, after filling up on dal and vegetables.
• Try substituting 25–50% of your rice with cooked foxtail millet (navane/thinai) — it blends easily into rice dishes and has a similar texture.
• When cooking a large batch of rice, refrigerate the leftover and use it the next meal — the resistant starch benefit applies after cooling.
• Test your personal response using the app: compare your spike from 1 cup of rice with sambar to ½ cup of rice with extra dal. The difference is usually clearly visible in your readings.

Based on: ICMR Carbohydrate Profiling Study; Mohan V et al., Journal of the American Dietetic Association 2010; Lal et al., Comprehensive Reviews in Food Science 2021