Besan, or chickpea flour, is one of the better flour options for people managing diabetes. With a glycemic index estimated at 28 to 35 for chickpea-based foods (compared to about 70 for white flour), it causes a much slower, smaller rise in blood sugar after meals. Its combination of high protein, high fiber, and resistant starch makes it a genuinely useful swap in a diabetes-friendly diet.
Why Besan Has a Low Glycemic Impact
The glycemic index ranks foods by how quickly they raise blood sugar on a scale of 0 to 100. Chickpeas themselves score remarkably low at just 6, and foods made from chickpea flour land in the 28 to 35 range. For comparison, white flour sits around 70. That difference is significant: it means besan-based foods release glucose into your bloodstream gradually rather than in a sharp spike.
The effect holds up even when besan is blended with other flours. In one study, whole-wheat bread made with just 25 to 35 percent chickpea flour produced a noticeably smaller blood sugar rise than both white bread and 100 percent whole-wheat bread. You don’t need to replace wheat entirely to see a benefit.
Nutritional Profile Per 100 Grams
Besan’s blood sugar advantages come down to what’s actually in it. Per 100 grams, chickpea flour contains roughly 19.7 grams of protein, 20.8 grams of dietary fiber, and 38.5 grams of available carbohydrates. That fiber-to-carbohydrate ratio is unusually favorable. Regular wheat flour, by contrast, has far less fiber and protein per serving, which means its carbohydrates hit your bloodstream faster and with less to slow them down.
The high protein content also matters. Protein slows digestion and helps you feel full longer, which can reduce the tendency to snack between meals or overeat at the next one.
How Besan Slows Glucose Absorption
Several mechanisms work together to blunt the blood sugar response when you eat besan-based foods. The soluble fiber in chickpea flour forms a viscous gel in your digestive tract. This gel physically slows down gastric emptying, meaning food takes longer to leave your stomach and glucose enters your bloodstream more gradually.
Insoluble fiber plays a different role. It reduces how efficiently your body breaks down starch into sugar, limiting how much glucose gets absorbed in the small intestine. On top of that, chickpea flour contains resistant starch, a type of starch your small intestine can’t digest at all. Native chickpea starch is about 40 percent resistant starch, and this portion passes through to your colon, where gut bacteria ferment it instead of it turning into blood sugar. Bioactive compounds naturally present in chickpeas, including polyphenols, also contribute to glycemic control by interfering with starch digestion.
Effects on Insulin Resistance
Blood sugar is only half the picture in diabetes management. Insulin resistance, where your cells stop responding efficiently to insulin, is the core problem in type 2 diabetes. Research on chickpea consumption shows promising effects here too.
In one acute feeding study, a chickpea-based meal lowered post-meal blood sugar at 30 and 60 minutes compared to wheat and control meals. The same study found that chickpea consumption also reduced fasting insulin levels and a standard measure of insulin resistance called HOMA-IR. A longer 12-week intervention found that people eating a chickpea-rich diet had lower fasting insulin and improved insulin resistance scores compared to those on a regular diet. These aren’t dramatic, drug-like effects, but they point in a consistently helpful direction.
How to Use Besan in Your Diet
Besan is versatile enough to work its way into meals you already eat. In Indian cooking, it’s the base for dishes like chilla (savory pancakes), dhokla, and pakora batter. You can also use it to thicken soups and gravies, make flatbreads, or partially substitute it into baked goods. Even replacing a quarter to a third of the wheat flour in a recipe with besan meaningfully lowers the glycemic impact of that food.
A few practical tips help you get the most benefit. Pairing besan with vegetables adds even more fiber and slows digestion further. Cooking methods matter too: a besan chilla cooked with minimal oil on a flat pan is a very different food from deep-fried pakoras, even though both start with the same flour. The deep-fried version adds calories and fat that can work against blood sugar control over time.
Portion size still matters. Besan contains about 38.5 grams of available carbohydrates per 100 grams. That’s lower than wheat flour, but it’s not negligible. If you eat a large quantity in one sitting, your blood sugar will still rise. Keeping portions moderate, roughly 30 to 50 grams of flour per meal, lets you benefit from the slow-digesting properties without overloading on carbohydrates.
Besan vs. Other Flour Options
Among common flours, besan ranks well for diabetes management, but it’s worth knowing where it stands relative to alternatives. White flour (maida) is the worst choice, with a GI around 70 and very little fiber or protein. Whole wheat flour is better but still produces a larger blood sugar response than besan, as the clinical comparisons show directly. Almond flour and coconut flour have even fewer carbohydrates than besan but lack its versatility in traditional cooking and can be significantly more expensive.
Besan’s real advantage is that it’s affordable, widely available, and already central to many cuisines. You don’t need to learn entirely new recipes or buy specialty ingredients. For most people with diabetes, switching from refined wheat flour to besan in everyday cooking is one of the simplest, most effective dietary changes available.