What is Tryptophan 2,3-dioxygenase (TDO)?

Tryptophan 2,3-dioxygenase (or TDO) is like a special helper that turns one kind of food into another inside your body.

Imagine you have a bag of colorful candies called tryptophan. TDO is like a clever kid who takes two candies from the bag and changes them into something new, like building blocks for making other kinds of treats, such as serotonin, which helps you feel calm and happy.

Think of your body as a big kitchen. In this kitchen, TDO is one of the chefs. When it gets a signal that there's plenty of tryptophan around (like when you eat a lot of protein), it starts working extra hard to turn those candies into building blocks.

TDO isn’t just any chef, it’s especially good at its job when there are lots of tryptophan candies available. It helps your body keep things balanced, so you can stay happy and healthy without getting too much or too little of certain ingredients.