Archaeologists have discovered that people have known about popcorn for thousands of years. The widely beloved popcorn has tear-drop shaped kernels with round tops, not to mention that these kernels can be white, yellow, red or black. Plus, they have a nutty flavor and crunchy texture, which is why they are generally popped and seasoned as a snack foo. Nutritionally, popcorn is a good source of dietary fiber and manganese. It is also a source of protein and zinc, as well as magnesium and phosphorus. As a matter of fact, eating popcorn has been linked to a lower risk of cancer and heart disease, and that's because the hull contains polyphenols with antioxidant and anti-inflammatory properties.