Parrots kept as pets commonly suffer nutritional deficiencies from seed-only diets, with hypovitaminosis A and obesity among the most prevalent diet-related welfare problems.
Nutritional deficiency causes chronic subclinical illness that reduces quality of life and shortens lifespan. Many parrot owners are unaware that seed diets are nutritionally inadequate. Gradual dietary transition to pelleted food and fresh vegetables is achievable with patience and appropriate guidance.