What is this white stuff that comes out of chicken when I bake it?

Is this a concern?
No, not at all. It’s a natural process and completely harmless. Some people find it unappealing, but it’s neither dangerous nor a sign of poor meat quality.

If you want it to be less noticeable, you can:

Cook the chicken more slowly and at a lower temperature.

Pat it dry before cooking to remove excess liquid.

If necessary, sear it in a pan and then finish cooking it in the oven.