The blood sugar will definitely rise when you eat corn, although corn belongs to the mixed grain, but because corn contains a lot of starch, but also contains a certain amount of sugar, so after eating blood sugar will have a more obvious increase. For diabetic patients try not to eat corn, especially the boiled corn bought from the market, because some in order to increase the taste of corn, will put sugar when cooking corn, cooked corn tastes sweeter, but will make the blood sugar has a more obvious rise. If you just want to eat corn you can cook your own corn, but not as a staple food to eat, other staples, pasta do not eat, in order to ensure that blood sugar will not have big fluctuations. But the situation varies from person to person, if the corn as part of the main food a small amount to eat or can be.