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Parrot Health – Obesity and Related Nutritional Problems

Avian veterinarians report that obesity, and related health concerns such as atherosclerosis, fatty liver and hernias, are now among the most common maladies exhibited by the parrots under their care.  The problem is approaching epidemic proportions.

Obesity in Parrots

Much of what we know concerning obesity in parrots parallels what we have learned about the same condition in people, and leads to similar health concerns.  When lab tests are run on overweight parrots, a condition known as Hyperlipidemia – high levels of fat in the blood – is usually diagnosed. 

As in people, the fats involved, cholesterol and high density lipoproteins, and their effects on cardiac health, are similar.  The harmful fats stick to the lining of the blood vessels, thereby increasing blood pressure and placing a strain on the heart.  In time, pieces of hardened fat may break off and be carried to the heart or brain, where, again as with people, they cause strokes or death.

Related Health Concerns

Obese parrots are often afflicted with Fatty Liver Disease, or Hepatic Lipidosis.  Liver cells become filled with fats and are not able to perform their usual functions; the cells die and scar tissue forms.  Milk Thistle has shown some promise in the treatment of Fatty Liver Disease…please see article below.

Despite taking in too many calories, overweight parrots may suffer from malnutrition.  This is especially so for those birds which eat only a few favored food items (i.e. sunflower seeds) as opposed to a balanced diet.

Lipomas (fatty masses) and hernias often manifest in obese parrots, and problems such as joint strain and bumblefoot may arise due to the extra stress being placed on the legs and feet.

How Does Obesity Develop?

Simply put, the problem usually arises from too much food, the wrong types of food, and a lack of exercise (thyroid and other problems can also be involved, so a vet exam is essential before formulating a treatment plan).

In the wild, parrots spend most of their day actively foraging for food, and go through times when certain foods are unavailable.  Most pets can meet their daily nutritional needs by spending a few minutes at the food cup.  Always encourage your parrot to search for food – hiding food, using foraging toys, and providing whole foods that must be manipulated are all useful techniques.

Seed-only diets are often criticized as promoting obesity and malnutrition, but again a detailed study of your bird’s natural foods is needed before proper captive diet can be planned.  Certainly, balanced pellet-based diets have their place, as do nuts, seeds, fruits and other foods, depending upon the species.

Different Parrots, Different Rules

It is important to understand that there is no single fail-safe formula where parrots are concerned.  Certain species thrive on very high fat diets, and need such in captivity.  Others are adapted to foods that are relatively low in nutrients, and cannot handle fatty seeds and high calorie foods on a regular basis.  Amazons, Budgerigars, Quaker Parrots and Cockatoos are often cited as being especially prone to obesity, but studies are lacking.

Animals that have evolved in habitats where food availability fluctuates wildly are often able to gorge themselves and add weight rapidly in times of plenty.  I have found this to apply to creatures as diverse as Orangutans, Cockatiels and African Bullfrogs, and scores of others.  Certain cockatoos and many other parrots are native to such environments, and therefore their food intake must be watched very closely…many seem willing to eat as long as food is available, irrespective of hunger.  This is a useful survival mechanism in the wild, but backfires when food shortages are no longer a fact of life.

Be sure to carefully research your bird’s natural history, and write in if you would like diet recommendations.  Commercial foods specifically formulated for individual species or groups of parrots can be very helpful when you are formulating a diet for your pet.

Determining if Your Parrot is Obese

Monk ParakeetsI feel that the best way to assess your bird’s condition is to have an avian veterinarian show you how to perform a manual examination of the bird’s muscle tone and fat deposits.  Many guidelines have been published, but I find them to be confusing and too general to be of much use…species and individuals vary greatly, as do conditions that may be mask weight gain or loss.

If your parrot is found to be overweight, your vet can show you how to take its weight and advise you on a weight loss program (5% monthly is often suggested as a weight loss-goal).  Exercise, either via flying or walking, is critical, and should be part of any weight loss plan.

Further Reading

Hormones, Diet and Obesity  

Parrot Pellets Re-visited

Medicinal Uses of Milk Thistle  



About Frank Indiviglio

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I believe that I was born with an intense interest in animals, as neither I nor any of my family can recall a time when I was not fascinated by creatures large and small. One might imagine this to be an unfortunate set of circumstances for a person born and raised in the Bronx, but, in actuality, quite the opposite was true. Most importantly, my family encouraged both my interest and the extensive menagerie that sprung from it. My mother and grandmother somehow found ways to cope with the skunks, flying squirrels, octopus, caimans and countless other odd creatures that routinely arrived un-announced at our front door. Assisting in hand-feeding hatchling praying mantises and in eradicating hoards of mosquitoes (I once thought I had discovered “fresh-water brine shrimp” and stocked my tanks with thousands of mosquito larvae!) became second nature to them. My mother went on to become a serious naturalist, and has helped thousands learn about wildlife in her 16 years as a volunteer at the Bronx Zoo. My grandfather actively conspired in my zoo-buildings efforts, regularly appearing with chipmunks, boa constrictors, turtles rescued from the Fulton Fish Market and, especially, unusual marine creatures. It was his passion for seahorses that led me to write a book about them years later. Thank you very much, for a complete biography of my experience click here.
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