Introduction
Today, astronauts eat a varied diet that is similar to what we eat on Earth. The menu aboard the International Space Station (ISS) includes more than a hundred items - from vegetables and fruit to pre-prepared meals and desserts. Even condiments such as ketchup and mustard are available. There are three meals per day, plus snacks that can be eaten at any time, ensuring astronauts receive at least 2500 calories each day.