The Claim: An apple a day keeps the doctor away.

How True Is It? Not literally, but apples are, in fact, very healthful. They contain antioxidants called flavonoids, which may reduce the risk of some types of cancer, as well as several other chronic diseases. Additionally, apples are one of the best fruit sources for fiber, which can lower cholesterol and help you lose weight by keeping you fuller on fewer calories.

Why It Gets Repeated: Because fruit is good for you. But a lone apple isn’t enough to keep you out of the doctor’s office. Shoot for five to nine daily servings of a wide variety of fruits and vegetables in a selection of colors so you take in different antioxidants. You won’t be bored, and you will get the nutrients you need.

Bottom Line: Toss a Granny Smith into your purse, but don’t stop there. Eat a rainbow of fruits and vegetables daily.