Good food for a teenager.

Teenagers have it rough, every day they take difficult life decisions, so a diet is no different. Would my advice would be to say a sister or guardian what they are trying to accomplish, it significantly reduce stress levels. You might even ask your parents to change their diet as well, it is not what the family can do together.
When leaving the House is where young people can have the most difficulty, the safety net that provides your family is now non-existent. Good nutrition for a teenager on the outside of the House would be composed of salads and plenty of water, you might find comfort in bringing it food at home, this would make very easy and less traumatic for the teenager.
So lets go to the food, the choice you make will dictate the success will be your food. I would stay away from the period of meat and stick to fish and do whatever it is salted in the trash. When you snacks should seize is no longer the Doritos, proper nutrition for a teenager means your favorite snacks is now fruits and vegetables say if your parents to stock up.
Now we know what we can and must be taken away, but I forget to mention the glue that will keep it together. Water is the key, okay, remember I told you this, drink plenty of water for at least 2-4 cups a day. A liver fort is what you get from this, don't forget that, OK?