Is it bad to only eat fruits or vegetables?

Answer

Both fruits and vegetables in all forms provide a variety of nutrients and other beneficial compounds for the body. Fruits and vegetables do provide many similar vitamins and minerals, like vitamins A & C, potassium, and fiber. However, each fruit or vegetable has a unique set of other beneficial compounds. In order to provide your body with the best combination of beneficial compounds (vitamins, minerals, antioxidants, etc.) it is important to eat a variety of BOTH fruits and vegetables. A well-rounded diet would also include whole grains, lean meats, and low-fat dairy, unless you are choosing to be vegetarian which also needs to be balanced with proteins, grains, and calcium rich products.