A pet food product with multiple layers and at least one of the layers includes protrusions that extend into another layer. The protrusions provide a mechanical interlock between layers providing increased resistance to delamination while the pet food product is being masticated. One of the layers may primarily provide palatability while another layer may provide therapy such as dental cleaning. The ability to resist delamination during mastication may result in prolonged delivery of the therapy as the pet chews on the pet food product to experience the palatability of the palatable layer.
