Rye
Huge spikes and drops in blood sugar can be dangerous, and can even cause diabetic shock and a number of other very unpleasant outcomes. Modern wheat causes a spike in the insulin level of the body, as it is made of smaller molecules that are quickly and easily broken down into simple sugar, which causes the increase in insulin. Rye, however, which is composed of larger molecules, is not broken down as quickly and therefore has less of an effect on blood sugar.