Yes, orange peels are edible. They contain rich nutrients such as fiber, vitamin C, polyphenols, and essential oils like limonene, which may provide health benefits including supporting heart health, aiding digestion, and promoting beneficial gut bacteria. However, orange peels are bitter and tough to chew, can be hard to digest, and often contain higher levels of pesticide residues than the inner fruit. It is best to wash the peels thoroughly before consuming them and to eat them in small amounts or as zest, candied, or cooked forms like marmalade to make them more palatable and easier to digest.