Many of us have acquired habits when it comes to eating. Some are great, while others are not. It's never too late to change your eating habits, even if you've been doing so for years. Beyond single foods or nutrients, examining entire dietary patterns is likely to provide a more comprehensive understanding of diet-health relationships. It is generally recognized that individuals do not eat solitary nutrients and instead have meals including a diversity of foods with complex combinations of nutrients that are likely to be interaction. Whole-of-diet analysis represents a fuller picture of a combination of foods and nutrients, such as the synergetic, additive, and antagonist effect of the foods and provide researchers the ability to account for the interactions between different nutrients. As a result, dietary patterns may be a better predictor of health-related quality of life and disease risk than individual meals or nutrients.