EAT WITH PURPOSE
Eat to live. Food is the fuel for everything you do. Nutrition not only effects physical function, but plays a role in emotional function as well. Some foods offer high nutritional value, while others offer nothing but empty Calories.
Whatever your fitness goal, you have to eat accordingly. Purposeful dieting is taking control of what you put in your body and making nutrition work for you, instead of the other way around. Athletes seeking to gain mass eat one way. Those seeking to decrease body fat eat differently.
You don't only want to focus on proper nutrition for your immediate goal, you want to focus on the diet changes that will allow you to keep the results you gain.