Good nutrition is a marathon, not a sprint. Don’t make the mistake of trying to change everything overnight. It took your entire life to adopt your current nutrition habits, expect it to take some time to change them. After two weeks of a consistent change, you have made it a habit. Pick two or three of these tips to start. Each week review how you have done and evaluate the areas that need improvement. During this review, plan on making an additional change to your nutrition.
HowStuffWorks finds out why so many calories are consumed at the office and what can be done about it.