Your liver is one of the biggest and busiest organ in your body. It has hundreds of different jobs to do.
For example, it makes a nasty substance called bile, which is important because it helps to break the food down in your body. It also helps to work out what your body needs from food - the nutrients - and if you've got too much of something, it can store it up!
Did you know?
Your liver is your biggest internal body organ and weighs 1.5kg (3.3 lb)!