#1 Eat balanced and regular meals.

#2 Eat plenty of fruit and vegetables.

#3 Get plenty of exercise. Cardio such as cycling and swimming.

#4 Lack of sleep can prevent proper growth. Get 8 hours of sleep EVERY night.

#5 Get plenty of calcium in your diet. Drinking milk may help you to become taller.

#6 Hanging onto a pull up bar in a gym or stretching will help to increase height
Remember. If you do not take action you will not gain an inch.

Source: http://healthyweightloss.hubpages.com/