Is Sweet Corn Good for Diabetes?

Updated on & Medically Reviewed by Dr Lalitha
Is Sweet Corn Good for Diabetes?

Sweet corn, with its succulent kernels and sweet taste, is a favourite for many. But if you're living with diabetes, you may be wondering whether you can still enjoy this delicious treat. The good news is that sweet corn can indeed be a part of your diabetes-friendly diet when consumed in moderation. In this article, we'll explore the benefits of sweet corn for diabetes and also, you will learn more about why you should include corn on your plate (its nutritional value) and the effect of corn on your blood glucose (sugar) levels.

Glycemic Index of Corn:

Checking corn's glycemic index can allow you to quickly determine whether it is healthy for diabetics. The GI determines how food affects blood glucose levels.

Any Food items under 55 are considered as low GI, whereas food items with a GI of 56 to 69 are considered medium GI. Consuming foods with a GI of 70 or higher should be done with caution because they can raise blood sugar levels. Corn has a GI of 52, placing it in the low-to-medium range, which is generally beneficial for people with diabetes.

When exploring corn-based products, it's essential to be aware of their respective GI:

  • Corn Tortilla: 46 (low GI)
  • Popcorn: 65 (medium GI)
  • Cornflakes: 81 (high GI)

How Corn Helps to Control Diabetes?

Corn can be a beneficial food for people with diabetes due to its nutrient composition and its effect on blood sugar levels. Also, it is found that the consumption of cornmeal is good for both type 1 and type 2 diabetes and it helps lower blood sugar levels.

Here are some ways corn can control diabetes:

  • Abundant in Fibre: Corn is a rich source of dietary fibre, which can slow down the absorption of glucose into the bloodstream. This, in turn, helps in regulating blood sugar levels and prevents sudden spikes.
  • Glycemic Index is Low: Compared to foods with a high glycemic index (GI), corn has a comparatively low GI, which implies it has less of an effect on blood sugar levels. Low GI meal options can enhance blood sugar control by reducing blood sugar spikes.
  • Packed with Antioxidants: Corn is full of antioxidants like carotenoids and flavonoids. These antioxidants have anti-inflammatory properties and protect cells from damage. This is particularly important for people with diabetes, as they are more prone to complications related to chronic inflammation.
  • Versatile in Cooking: You can prepare corn in many ways, from boiling and roasting to grilling. It can be added to salads, soups, and stews, making it easy to include in a diabetes-friendly diet and add variety to your meals.

Fresh, Frozen, or Canned Corn: Which is More Nutritious?

Fresh corn is the top choice, but when it's not around, go for frozen corn as the next best option—it keeps most of its nutrients when frozen. Canned corn, however, isn't as healthy because it often contains preservatives and added sugar. Don't worry about fresh corn raising blood sugar levels too much; it's okay in moderation for people with diabetes. So, to get the most nutrition, go for fresh or frozen corn over canned.

The Nutritional Profile of Corn:

Let's see the nutritional profile of 100 gms of sweetcorn:


For 100 gms


19.02 g


3.2 g


2.7 g


3.22 g


75.96 g

Vitamin A

9 µg

Vitamin B1

0.200 mg

Vitamin B3

1.700 mg

Vitamin B9

46 mg

Vitamin C

11 mg


0.52 mg


37 mg


270 mg


89 mg


0.163 mg


0.46 mg


2 mg


Benefits of Corn in Diabetes:

Corn is moderately safe and can be included in a diabetes-friendly diet as long as the portions are controlled. When you eat maize in the right amounts, you can benefit from all of its amazing nutritional advantages.

  • Low-Fat Content: Corn's low-fat nature is advantageous for people with diabetes, helping manage body weight and promoting heart health.
  • Low-Calorie Option: It is a low-calorie snack choice, making it suitable for individuals with diabetes who need to watch their calorie intake.
  • High Fiber Content: Corn is rich in dietary fiber, which aids in regulating blood sugar levels by slowing down sugar absorption.
  • Enhanced Eye Health: Corn contains antioxidants like zeaxanthin and lutein, which contribute to preserving eye health and preventing degenerative eye conditions.

Does Sweet Corn Raise Blood Sugar Levels?

Is corn bad for diabetics? Sweet corn contains natural sugar, it should be consumed in moderation to avoid blood sugar spikes. Polyphenols, an antioxidant that protects against type 2 diabetes, are commonly found in high concentrations. Regular moderate eating of corn will help you minimise your existing risk of type 2 diabetes, but excessive sweet corn consumption can cause blood sugar spikes. So, if you're wondering if sweet corn is beneficial for type 2 diabetes, the answer is yes, but it all depends on how much you consume. So always put a limit on your corn consumption for the best results.

Sweet corn can be a part of a diabetes-friendly diet when consumed in moderation. It has a relatively low glycemic index, is rich in fibre, and contains antioxidants that can benefit people with diabetes. However, it's essential to be mindful of portion sizes and the type of corn you choose.


To maintain good blood sugar control, it's crucial to balance your overall carbohydrate intake, including corn, with other nutrients and monitor your blood sugar levels regularly. As with any food, individual responses may vary, so it's a good idea to work with a healthcare provider or registered dietitian to create a personalized diabetes management plan that includes foods like sweet corn in a way that suits your needs and preferences.


Q) Can Individuals with Diabetes Include Sweet Corn in Their Diet?

A) Absolutely, individuals with diabetes can enjoy sweet corn as part of their diet. It offers a wealth of essential minerals and nutrients that contribute to blood sugar regulation. However, it's crucial to exercise moderation due to sweet corn's naturally high sugar content.

Q) Are Corn Flakes Suitable for Diabetics?

A) Corn flakes are not recommended for individuals with diabetes. They have a high glycemic index of 82, which significantly exceeds acceptable levels for diabetes management. Therefore, it is advisable for people with diabetes to avoid consuming cornflakes.

Q) Does Corn Aid in Weight Loss?

A) Yes, corn is a high-fibre food that promotes metabolism and keeps us fuller for longer, both of which help us lose weight.

Q) Is Sweet Corn Good For Diabetes?

A) Sweet corn is not only good for diabetes, it is also delicious! Just because a certain type of food is sweet doesn’t mean that it is bad for those with diabetes.

Remember, the key is for you to check the:

  • Amount of carbohydrate you’re going to eat
  • Type of carbohydrate
  • Your blood glucose (sugar) 

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Disclaimer: The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. If you have any questions or concerns about your health, please talk to a healthcare professional.

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