Sure, it's normal, I've heard of people who like to snack on it. Your saliva converts the starch to sugar, so it tastes good to you.
Corn starch is used as a thickener in many processed foods, gravies, and for starching clothes.
Any food we consume if we over do it we well develop a reaction. For instant Amylophagia is an example (compulsive consumption of excessive amounts of purified starch). To tell you how much is too much i am not sure, but enjoy!
Eating cornstarch is not normal. It is maladaptive in fact and can lead to a host of other problems. People who are addicted to eating cornstarch often have a vitamin deficiency most common are zince or iron deficiencies. Unfortunately, those who do, especially prone are women menstruating can suffer severe anemia and even hospitalization for blood transfusions. Other symptoms of eating cornstarch include: dandruff, anemia (already mentioned), thrush, mouth sores, weight gain, headaches, migrains and depression. If you are addicted to eating the stuff contact your medical provider and be honest.
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