Healthy birds who are fed a balanced, avian diet normally don’t need added vitamins. Stress, sickness, or other factors can change things. When your veterinarian says your avian friend needs to supplement his or her nutrition, Avi-Era Bird Vitamins can help. The formula contains 13 essential vitamins for birds, including vitamin A, vitamin D3, vitamin E, niacin, vitamin B12, vitamin H, vitamin C, plus other essential nutrients. Mix with water as directed or mix into food your bird will eat completely.