Last week the New England Journal of Medicine published a study following over 100,000 people over 20 years to quantify just how bad certain foods are. The short answer? Just what you think — fried foods, refined grains, and potatoes are the bad guys in your diet. An extra serving of french fries, for example, was associated with over three pounds of weight gain for each four-year study period.
Of course, what we eat isn’t the only culprit in what’s making us fat. Read on for the top lifestyle practices that researchers found were bad for you.