AW SHUCKS—CORN ON THE COB IS ACTUALLY HEALTHY Summer is here and it’s time once again for fresh corn on the cob. I’ve now found out that this treat has several health benefits: It consists mostly of insoluble fiber, which makes it a low-glycemic index food—meaning it’s a food that is digested slowly and doesn’t cause an unhealthy spike in blood sugar; It contains several B vitamins as well as minerals, including magnesium, copper, iron, manganese and zinc. It’s the salt and butter we spread on it that turns it from a wholesome food into an unhealthy summertime addition.  I’ve...