Care must also be taken to check that you are not buying chicken with added water and other proteins, such as from another animal species or derived from milk.
Dylech hefyd gadarnhau nad ydych yn prynu cyw iâr sy'n cynnwys dŵr ychwanegol a phroteinau eraill, megis o rywogaeth arall o anifail neu sy'n deillio o laeth.