Glycemic Index of Common Indian Flours - The Complete GI Chart for Atta

⚠ Disclaimer: This article is for informational purposes only. Consult your doctor or registered dietitian for personalised advice.

If you are managing diabetes, weight, or simply want to understand how different flours affect your blood sugar, the glycemic index (GI) is one of the most important numbers you need to know. Yet most Indians do not know the GI of the atta they use every day.

In this post, we give you the complete glycemic index chart for every major Indian flour - with clear explanations of what each number means and which flours are best for blood sugar management.

What is the Glycemic Index (GI)?

The Glycemic Index measures how quickly a carbohydrate-containing food raises blood sugar (glucose) after eating, on a scale of 0 to 100 (pure glucose = 100). Foods are classified as:

GI Category	GI Range	Effect
Low GI	0–55	Slow, gradual blood sugar rise ideal for diabetics and weight management
Medium GI	56–69	Moderate rise acceptable in controlled portions
High GI	70+	Rapid blood sugar spike should be limited

An important nuance: GI measures the response to a specific amount of carbohydrate in isolation. In real meals, fat, protein, and fibre eaten alongside a food slow its digestion and lower its effective GI. A roti eaten with dal and sabzi has a lower real-world blood sugar impact than the same roti eaten alone.

Complete GI Chart — Indian Flours

Flour / Atta	GI Score	Category	Fibre/100g	Notes
Sugar Care Atta (Chakki Peesing)	35–42	Low	High	Purpose-built low GI blend
Rajgira (Amaranth) Flour	35–40	Low	7g	Gluten-free, complete protein
Khapli Wheat Atta (Emmer)	40–45	Low	9–11g	Ancient wheat, high fibre
Kuttu (Buckwheat) Flour	40–50	Low	10g	Gluten-free, rutin-rich
Besan (Chickpea Flour)	44	Low	10g	Very high protein
Bajra (Pearl Millet) Flour	54	Low–Medium	8g	Traditional winter grain
Ragi (Finger Millet) Flour	68	Medium	11g	Highest calcium content
Jowar (Sorghum) Flour	62	Medium	6g	Gluten-free, antioxidants
Oat Flour	55–60	Low–Medium	10g	Beta-glucan for cholesterol
Whole Wheat Atta (packaged)	65–70	Medium	2–4g	Common commercial atta
Multigrain Atta (well formulated)	45–55	Low–Medium	8g	Depends on grain mix
White Rice Flour	72	High	<1g	Avoid for blood sugar management
Maida (Refined Wheat)	85+	High	<1g	Highest GI — avoid for health
Corn Flour (Makki)	70–75	High	3g	Use in moderation

The Lowest GI Flours for Diabetics - Ranked

Based on the GI chart above, here are the best atta choices if blood sugar management is your primary goal:

1. Sugar Care Atta (GI 35–42): Chakki Peesing's purpose-built low GI blend. Best for replacing regular wheat atta with minimal taste change.

2. Rajgira / Amaranth Flour (GI 35–40): Very low GI but distinct taste and texture best blended with other flours.

3. Khapli Wheat Atta (GI 40–45): The best single-grain wheat atta for diabetics. Lower GI than regular wheat, higher fibre, similar cooking behaviour.

4. Kuttu / Buckwheat Flour (GI 40–50): Excellent low GI option particularly for those who can incorporate non-wheat flatbreads.

5. Besan / Chickpea Flour (GI 44): Very low GI and high protein best used in missi roti (blended with wheat atta) or cheelas.

 "Shop Sugar Care Atta — India's lowest GI atta blend"  →  /collections/sugar-smart

"Read our full guide: Best atta for diabetics"  →  /blogs/why-is-fresh-ground-flour-good-for-health/best-atta-for-diabetics-india

Why Does Fresh Milling Lower the GI?

An important and often overlooked point: the same wheat grain ground fresh will have a lower real-world GI than the same grain milled months ago and stored as packaged flour. Here's why:

Intact bran matrix: In freshly stone-ground atta, the bran is fully intact and evenly distributed throughout the flour. This bran creates a physical barrier in the digestive tract that slows starch digestion lowering the effective GI of the flour.

No processing damage: Commercial refining and high-heat milling damage the fibre structure of the bran, reducing its ability to slow starch digestion. Stone-ground fresh atta retains its full fibre functionality.

Natural enzymes: Fresh flour contains active enzymes that participate in fermentation during dough-making. This natural fermentation process (similar to sourdough) produces organic acids that lower the GI of the baked product.

This is why Chakki Peesing's freshly stone-ground Khapli atta has a lower effective GI than packaged Khapli atta of the same grain variety.

Glycemic Load vs Glycemic Index What Actually Matters

GI measures the speed of blood sugar rise. Glycemic Load (GL) measures both speed and amount factoring in the quantity of carbohydrate per serving. GL = (GI × grams of carbohydrate per serving) ÷ 100

A food with a high GI but small carbohydrate content can have a low GL. For example, watermelon has a high GI (72) but very few carbohydrates per serving so its GL is low and it is perfectly fine for diabetics in normal portions.

For Indian atta, both GI and portion size matter. Even low GI atta eaten in very large portions will spike blood sugar. The combination of: low GI atta + appropriate portion size + paired with protein and vegetables = optimal blood sugar management.

"Explore Chakki Peesing's full range of low GI flours"  →  /collections/sugar-smart

CONCLUSION: The glycemic index of Indian flours varies enormously from GI 35 (rajgira) to GI 85+ (maida). For blood sugar management, switching from regular wheat atta (GI 65–70) to Sugar Care Atta (GI 35–42) or Khapli atta (GI 40–45) can make a significant difference in daily blood sugar response. Fresh stone-ground milling further lowers the effective GI by preserving the intact bran fibre matrix. Chakki Peesing's low GI flour range is freshly milled to order.

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