Eat a variety of foods, especially fruits and vegetables

You may have a favorite food, but the best choice is to eat a variety. If you eat different foods, you're more likely to get the nutrients your body needs. Taste new foods and old ones you haven't tried for a while. Some foods, such as green veggies, are more pleasing the older you get. Shoot for at least five servings of fruits and vegetables a day — two fruits and three vegetables. Here's one combination that might work for you:

• at breakfast: ½ cup (about 4 large) strawberries on your cereal
• with lunch: 6 baby carrots
• for a snack: an apple
• with dinner: ½ cup broccoli (about 2 big spears) and 1 cup of salad

Drink water and milk most often:When you're really thirsty, cold water is the No. 1 thirst-quencher. And there's a reason your school cafeteria offers cartons of milk. Kids need calcium to grow strong bones, and milk is a great source of this mineral. How much do kids need? Aim for 3 cups of milk per day, or its equivalent. You can mix it up by having milk and some other calcium-rich dairy foods. Here's one combination:

• 2 cups (about half a liter) of low-fat or nonfat milk
• 1 slice cheddar cheese
• ½ cup (small container) of yogurt

Limit screen time: Limit screen time. What's screen time? It's the amount of time you spend watching TV or DVDs, playing video games (console systems or handheld games), and using the computer. The more time you spend on these sitting-down activities, the less time available for active stuff, like basketball, bike riding, and swimming. Try to spend no more than 2 hours a day on screen time, not counting computer use related to school.

Listen to your body: What does it feel like to be full? When you're eating, notice how your body feels and when your stomach feels comfortably full. Sometimes, people eat too much because they don't notice when they need to stop eating. Eating too much can make you feel uncomfortable and, over a period of time, can lead to unhealthy weight gain.