The bones in my cooked chicken are dark gray or black — is that dangerous?

has been frozen because freezing and thawing can cause the blood in the marrow to move and oxidize upon cooking.

The intense heat from these cooking methods can exacerbate the darkening of bones compared to other methods like poaching or steaming, where the heat is more gentle and uniform.

Grilled chicken pieces with char marks on an outdoor grill

10. When to Call a Doctor or Throw the Chicken Away

If you experience symptoms like nausea, vomiting, diarrhea, or fever after consuming chicken with dark bones, it’s important to contact a healthcare professional as these may be signs of foodborne illness.

Throw the chicken away if it has a foul smell, unusual color, or slimy texture before cooking, as these indicate spoilage. When in doubt, it’s always safer to discard questionable chicken rather than risk illness.

11. How to Shop, Store, and Prep Chicken to Avoid Alarming Bone Color

When