Why does sweet corn taste sweeter than other types of corn?

Sweet corn tastes sweeter than other varieties of corn because of a fundamental difference in how the plant processes carbohydrates. While other types of corn convert their natural sugars into starch as they mature, sweet corn does not undergo this conversion to the same extent.1

Because the plant retains a higher percentage of sugar rather than turning it into starch, the kernels remain succulent and sweet. This unique characteristic is the primary reason sweet corn is favored for consumption as a vegetable, whereas other varieties—such as dent corn, flint corn, or popcorn—are typically classified by their starch content and used for different purposes like animal feed, milling, or processing.21