A close-up image of a pile of corn kernels.

What is the glycemic index of corn flour? Is it good for diabetes?

The glycemic index (GI) shows how different foods with carbohydrates affect our blood sugar. It ranks these foods from 0 to 100 based on their impact on blood sugar after we eat them. Foods with a high GI quickly raise blood sugar, while those with a low GI cause a slower increase.

For people with diabetes, knowing the GI is important for managing blood sugar levels. Choosing foods with a lower GI can help them control their blood sugar. Corn flour, which has a moderate GI, is a good option for people looking to manage their blood sugar. It can be used instead of high-GI flours, making it a good choice for a diabetic meal plan.

Glycemic Index of Corn Flour

Corn flour has a Glycemic Index (GI) of 70, placing it in the category of high GI foods. Foods with a high GI are rapidly digested and absorbed, leading to a rapid increase in blood sugar levels. This rapid spike in blood sugar can result in a sudden surge of energy, followed by a crash. For individuals with diabetes or those aiming to control their blood sugar levels, consuming high GI foods like corn flour should be done in moderation. Pairing high GI foods with other low GI foods or incorporating lean proteins and healthy fats can help offset the rapid spike in blood sugar. Additionally, opting for whole grain alternatives or combining corn flour with fiber-rich foods can help lower its overall GI impact. Individuals need to be mindful of their overall dietary intake and make choices that align with their health goals.

Nutritional Value


6.2 g


81 g


1.74 g


7.3 g


1 g


0 g

Is Corn Flour Good for Diabetics?

Corn flour, despite its versatility and widespread use in culinary applications, has drawbacks when it comes to diabetes management. Due to its high carbohydrate content and elevated Glycemic Index, corn flour is not recommended for individuals with diabetes. Carbohydrates can significantly impact blood sugar levels, causing rapid spikes that are problematic for diabetic patients. Moreover, the high Glycemic Index of corn flour signifies that it can lead to sudden increases in blood glucose, which is especially hazardous for those with diabetes.

For diabetic patients, opting for alternative flours with lower carbohydrate content and a lower Glycemic Index is advisable to maintain better control over blood sugar levels and overall health. Therefore, individuals with diabetes must exercise caution and moderation when incorporating corn flour into their diets. Prioritizing whole, unprocessed grains and low-carb flour is crucial for managing diabetes effectively.

Incorporating Corn Flour into a Diabetic Diet

Opt for Whole Grain

When incorporating corn flour into a diabetic diet, it is essential to opt for whole grain corn flour over refined versions. Whole grain corn flour contains more fiber and nutrients, helping in managing blood sugar levels effectively.

Delicious Recipes

Several delicious and diabetic-friendly recipes incorporate corn flour. One popular option is to use whole grain corn flour in homemade tortillas or flatbreads, filled with lean proteins, vegetables, and healthy fats to create satisfying and blood sugar-friendly meals.

Baked Goods

Corn flour can be used to prepare baked goods such as muffins, pancakes, or cornbread, using natural sweeteners and minimal added fats.

Flavorful Coatings

Incorporating corn flour into a diabetic diet can also involve creating flavorful coatings for baked or air-fried proteins such as chicken or fish. By using a mixture of corn flour and herbs/spices, individuals can enjoy crispy textures without the need for deep frying or heavy breading.

Balanced Meals

Pair corn flour-based dishes with ample servings of non-starchy vegetables and lean proteins to ensure a well-rounded and balanced meal that supports stable blood sugar levels.

Alternate Flour Options for Diabetics

For individuals with diabetes, it's important to pay attention to the types of flours used in cooking and baking. Here are some alternative flour options that are suitable for diabetics:

  1. Almond Flour: Made from ground almonds, almond flour is low in carbohydrates and high in healthy fats, making it a great option for those with diabetes.

  2. Coconut Flour: Coconut flour is high in fiber and low in digestible carbohydrates, making it a good choice for managing blood sugar levels.

  3. Oat Flour: Oat flour is a nutritious option that is high in soluble fiber, which can help regulate blood sugar levels.

  4. Chickpea Flour: Also known as besan or gram flour, chickpea flour is high in protein and fiber and has a lower glycemic index than wheat flour.

  5. Flaxseed Flour: Ground flaxseeds are a rich source of omega-3 fatty acids and fiber, and can be used as a low-carb flour alternative.

By incorporating these alternative flours into their diet, individuals with diabetes can enjoy a variety of delicious and healthy meals while keeping their blood sugar levels in check.

To conclude:

The high glycemic index of corn flour means that it can cause a sharp increase in blood sugar levels. This makes it less suitable for people with diabetes. However, if you choose to include corn flour in your diet, it should be in minimal amounts to avoid spikes in blood sugar. Always consult a healthcare professional or a dietitian before incorporating corn flour into your diabetes meal plan.


  1. Is corn flour safe for people with diabetes?

    No, corn flour has a high glycemic index (GI), which can cause a rapid spike in blood sugar levels, making it unsuitable for individuals with diabetes.

  2. Can corn flour be included in a diabetic-friendly diet?

    It is not recommended to include corn flour in a diabetic-friendly diet due to its high GI, which can negatively impact blood sugar levels.

  3. What are the potential risks of consuming corn flour for individuals with diabetes?

    Consuming corn flour can lead to a sharp increase in blood sugar levels, posing a risk for diabetes patients and potentially causing complications related to blood sugar management.

  4. Are there any alternative flours that are suitable for individuals with diabetes?

    Yes, there are several alternative flours with lower GI values, such as almond flour, coconut flour, and chickpea flour, which are more suitable options for individuals with diabetes.

  5. How should individuals with diabetes approach the use of corn flour in recipes?

    Individuals with diabetes should avoid using corn flour in their recipes and opt for alternative flours with lower GI values to better manage their blood sugar levels and overall health.


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