Of all the things you can possibly change to get healthier, the one to start with is eating better.
Why? Because a poor diet comes in first place—beating smoking, high blood pressure, drinking, drugs, and lack of exercise—as the largest preventable cause of early death no matter where you live in the United States, according to an analysis of risk factors by the Institute for Health Metrics and Evaluation.
Of course, since you’re reading Men’s Fitness, you’re probably already on the path to eating healthy and living a long and prosperous life, so congrats! And if you happened to pick this up in a doctor’s office—well, you should know crappy eating is coming after you—literally.
Read on for the top dietary risk factors, in order of how bad they are for you.