Non-therapeutic use of at least one ellagitannin to reduce the absorption of iron by an animal ingesting such content in food, is claimed. Independent claims are included for: (1) an animal feed comprising a plant extract (2) dietary supplement for animals comprising a plant extract and (3) an ellagitannin to reduce the rate of absorption of dietary iron in a patient. ACTIVITY : Anabolic Cardiant Hepatotropic Metabolic. MECHANISM OF ACTION : None given.Linvention concerne lutilisation dau moins un ellagitanin pour réduire labsorption du fer ingéré, notamment contenu dans un aliment par un animal, notamment un mammifère ainsi quun aliment pour animaux et un complément alimentaire pour animaux comprenant un tel tanin.