I came across this website that might interest teenagers in eating well and staying fit! The website is here : http://www.wikihow.com/Eat-Healthy

Here are some of the good advices they provide!

Many people do because they don't feel they need to eat breakfast, or they just don't feel hungry first thing in the morning. Research shows that people who skip breakfast are usually fatter than those who eat a well balanced breakfast. Although you might not feel hungry first thing in the morning, if you skip breakfast you will feel extra hungry come lunch time, making you more prone to overeating for your afternoon meal.

In addition, skipping breakfast makes your body think that you are starving. After all, by lunch time, you may not have eaten in almost eighteen hours. For the rest of the day after you skip breakfast, your body will store up most of the energy you get from food, instead of allowing you to burn it, in anticipation of food scarcity. Not only will this cause you to be tired during the day when your body isn't using the food that you ate, but the extra energy stored up will result in weight gain.

You need to eat foods high in carbs since they are your body's main source of energy. The trick is to choose the right carbs. Simple carbs like sugar and processed flour are quickly absorbed by the body's digestive system. This causes a kind of carb overload, and your body releases huge amounts of insulin to combat the overload.

Not only is the excess insulin bad on your heart, but it encourages weight gain. Insulin is the main hormone in your body responsible for fat storage. Eat plenty of carbs, but eat carbs that are slowly digested by the body like whole grain flour, hearty vegetables, oats, and unprocessed grains like brown rice.

These kinds of food not only contain complex carbs that are slowly digested by the body, but are usually higher in vitamins and other nutrients that are beneficial to the body and they are higher in fiber which keeps your digestive system running smoothly.

Avoiding simple carbs and fatty foods doesn't need to be boring. Have fun not only with the food, but with the meal. Eating with family and friends makes the meal more satisfying than eating in front of the TV or in the car on the way home from work. You will also eat more slowly when enjoying your meal, which gives your body time to feel full before you burst a button.

There are more creative cooking resources available to us than ever before. You can find great tasting recipes in magazines, books, and right here on the Internet. Eating baked fish three or four times a week can get boring, so do a little recipe hunting to find more exciting ways to prepare your meals.

There are more advices when you visit the given link so be sure to check it out! ;D