You have to do both.

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Eating your veggies won’t let you get away with not ever breaking a sweat. And working out obsessively at the gym can’t make up for repeated junk-food binges. A new study shows that both elements, a good diet and regular exercise, are required to ward off death and disease, reports The New York Times. Researchers looked at self-reported health and exercise data from nearly 350,000 people in Britain, median age 57, who were followed up over a decade. Unsurprisingly, those with both high levels of physical activity and better-quality diets had the lowest mortality risk. Those who exercised regularly were also associated with a lower risk, but the risk was particularly low for people who engaged in vigorous exercise—anything that made them break out into a sweat—for as little as 10 to 75 minutes a week.

Meanwhile, even those with the most nutritious diets had considerably worse outcomes if they didn’t also have some form of regular fitness regime. Regardless of your diet, says lead author Melody Ding from the University of Sydney, “physical activity is important. And whatever your physical activity is, diet is important.” Ding says the findings highlight how crucial it is to consider food and exercise as equal parts of holistic health. “It’s not just about burning calories,” she says. “We need to shift that thinking.”