In recent years several seafood companies have jumped on the meal-kit bandwagon, following the trend of retail giants such as Amazon and Walmart.

And now, home-delivered meal kits can tout more than just being convenient, easy-to-prepare meals. A University of Michigan study recently found they have a much lower overall carbon footprint than the same meals purchased at a grocery store, despite having more packaging.

Average greenhouse gas emissions were one-third lower for meal kit dinners than the store-bought meals when every step in the process—from the farm to the landfill—was considered, according to the study.