Pure human grade duck liver. Freeze dried raw to lock in the aroma, texture and freshness, these treats are tasty for tail-wagging pups. Freeze drying just removes water, preserving nutrients in these treats to support a healthy, happy furbaby. Duck is both high in protein and hypoallergenic, so these treats are paw-some for pups with allergies. Averaging just three calories each, they’re paw-fect for dogs who need to watch their weight. They’re also ideal for dogs who are diabetic, who are on a restricted diet or who have gastrointestinal disorders.