One of the oldest cheeses in the world, feta is still resoundingly popular, thanks to its mild flavor and distinct crumbly texture. It's low lactose content also makes it a great option for with sensitive stomachs.

A longtime favorite among the health-conscious, spinach is packed with essential vitamins and nutrients.

Antibiotics have been used for thousands of years, scientists have found evidence of their use in ancient Roman and African civilizations. The use of antibiotics is especially prevalent in traditional medicinal practices, such as Chinese medicine where they have uses plants and plant extracts containing antimicrobials for thousands of years.