Although you may have heard news about GMO being a bad thing, in most cases, genetically modified foods are rarely the culprits. Manufacturers manipulate plant DNA to create traits that are desirable such as longer shelf-life, more nutritious, resistant to pesticide, and resistant to diseases. Plants are the most important food for humans. The photo shows a variety of corns that were genetically modified through biotechnology.

Reference:

Keith Weller, USDA. OpenStax Concepts of Biology