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Vitamin d toxicicity in birds, the largest global source of pet health information, is created by veterinary professionals and covers 9 different species.

serving a balanced diet

A nutritionally balanced diet for your bird can help it remain healthy for life.

serving a balanced diet

One such nutrient, vitamin D, is very beneficial for the bird. However, if the nutrient is found in excess in the body, it can result in vitamin D toxicosis. Vitamin D also converts into calcium in the body. Therefore, if a bird receives the required amount of calcium, plus extra vitamin D, it will end up with excessive calcium in the blood.

Avian Vitamin D Toxicosis

Vitamin D works together with calcium and phosphorus to keep your bird healthy. Though, any imbalance in their required proportions and the bird may suffer from a variety of medical problems. Parrot families are also more prone to vitamin D toxicosis, especially macaws. 

Symptoms and Types

A major problem created by vitamin D toxicosis is kidney damage. This happens because the vitamin D and calcium accumulate in the kidneys, which prevents the organ from functioning normally. One such kidney disease created from the kidney damage is gout.


Vitamin D toxicosis can be prevented by carefully choosing your bird feed and removing any excessive vitamin D from its diet. Maintaining a calcium, vitamin D and phosphorus balance in your bird's diet, will also help prevent vitamin D toxicosis.

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