When it comes to your health, there is no "one size fits all" solution. Yes, there are basic principles to living a healthier life, but those principles manifest themselves very differently depending on the individual. What works for others might not work for you. It's about discovering what does work and weeding out the rest.
Nutrition and health do not exist in a vacuum. To successfully attain your nutrition and health goals, you must find something that works within the matrix of your life. Furthermore, you must find something that will enhance your life, not detract from it. Striking the right balance of discipline and decadence is the key to living a long and happy life.
Food can heal, and food can kill. Food can be delicious, and food can be disgusting. Finding delicious food that heals is the essence of nutrition -- dieting and deprivation are not.
Health is just as much about what you put in your body, as it is about what you do with your body. Fitness is fundamental to health -- health of the mind, the body, and the soul. Making physical activity a part of your life will complement what you do with the rest of your life.