Corn, also known as maize, has been a staple crop in North American agriculture for hundreds of years. It is drought resistant, easy to grow, and versatile in cooking. The main variety we consume is sweet corn, which offers a range of nutrients and fiber. 

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Americans consume the largest amount of corn and corn by-products in the world.¹ In 2019, it was estimated that each person consumed 36.5 lbs of corn products yearly. This is a significant increase from data thirty years ago, documenting approximately 21 lbs consumed per person. 

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This article will explore how corn may impact blood sugar levels and the health benefits that could be gained from including this vegetable in meals. 

Corn contains natural carbohydrates, which are broken down into simple sugars during digestion. Sugars from food are absorbed into your bloodstream and can raise your blood sugar levels. 

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Corn alone may not cause your blood sugars to spike, as it is considered a low glycemic index food, but when you consider the full glycemic load of your meal, there is a good chance you may see a spike. It is common to serve corn alongside other high-starch and high-carb foods, which all accumulate and can raise blood sugar levels. 

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Every person will have a unique glycemic response to corn. Some people may experience higher blood glucose levels, and others may not. The below glycemic index and glycemic load data are based on a serving size of 100g (approximately one medium cob) of sweet, yellow, raw corn.² ³

Corn is a robust source of energy, vitamins, minerals, and fiber while low in sodium and fat. While there are natural sugars in corn, positive nutritional properties make it a safe option to include in meals.