Tyrant55 said:
Also, I believe that there are many undiscovered reasons why fruits and vegetables are good for us that go beyond vitamins, minerals, and fiber.
Actually, there are discovered things beyond vitamins, minerals and fiber.

There are chemicals in wild plants that help protect against certain things that are useful for the same purpose in animals that consume them, and being removed from those threats in a domesticated environment, the plants don't produce those beneficial chemicals and are less great for you. Also, the methods of fertilization focus on the highest needs of the plant, which is like focusing only on the protein, carbohydrate, and fat intake in humans. Micro nutrients were a key discovery in nutrition, and people keep discovering other things that we NEED (just in smaller amounts) that we didn't know about before.