Eat as many different colored vegetables as possible - each color provides a specific benefit that the others may not, and it will keep your meals new and interesting.
Avoid drinking cola - it's not only full of empty calories, but it contains Phosphoric acid, which blocks calcium absorption. This can lead to weaker bones and teeth due to calcium loss.
Consumption of protein and carbohydrates immediately before and immediately after exercise is ideal for muscle growth.
Planning your meals ahead of time helps to make sure you're getting all your required nutrients as well as helping you avoid eating last minute convenience foods.
To help decrease bodyfat levels, eat at least 2 grams of fiber for every 10 pounds of bodyweight each day.