For years, experts were quick to acknowledge that organic foods didn’t contain harmful pesticide residues, but wouldn’t go so far as to say they were actually better for you nutritionally. Now a new study by British researchers takes that leap.

Researchers compared the nutritional content of fruits, vegetables, and beef grown side by side in two farms: one organic, one not. To their surprise, they found foods grown organically contained up to 40 percent higher levels of antioxidants, compounds in foods that have been linked to everything from fighting cancer to slowing the signs of age. In addition, the foods grown organically contained lower amounts of undesirable compounds, such as harmful fats.

The Bottom line (literally): Not only is organically grown food better for the environment and your body, it’s better for your waistline.