Can Cats Eat Oysters? | Waldo's Friends

Home / Blog / Can Cats Eat Oysters?


Blog Hero

Cat Food

Can Cats Eat Oysters?

Can Cats Eat Oysters?

Oysters are molluscs with hard shells that can be found in marine or brackish habitats. Though they are safe for humans to eat, they should not be fed to cats. Bacteria in raw oysters such as Vibrio vulnificus may cause your cat to suffer from stomach and intestinal complications. Diarrhea and dehydration are two common symptoms, which can escalate to death in extreme cases. 

Aside from possible bacteria lurking in the oysters, the seafood contains enzymes that destroy the thiamine found in your cat’s body. Thiamine is an essential vitamin that helps cats maintain optimal health. Thiamine deficiency can initially manifest as appetite loss, weight loss, and gastrointestinal upset. As it progresses, cats may suffer from neurological symptoms including neuromuscular weakness, unequal pupil sizes, decreased light response, and heart problems.

What to do if your cat accidentally eats oysters: Find out how much your cat ate, and if she consumed raw or cooked oysters. If it is the latter variety, find out the accompanying ingredients used to prepare it. 

Ingesting common ingredients such as salt, garlic, and onion may cause her to immediately display alarming symptoms. Salt consumption can cause vomiting, diarrhea, decrease in appetite, lethargy, incoordination, and excessive thirst or urination. Garlic and onion consumption may result in vomiting, blood in urine, weakness, high heart rate, panting, fever, skin discolouration, appetite loss, abdominal pain, and breakdown of red blood cells. Meanwhile, oysters cooked with dairy products such as cheese and butter may cause digestive upset.

In summary: Though oysters contain omega-3 fatty acids that may enhance your cat’s brain function and reduce her risk of having cardiac diseases, she is better off eating other sources that are completely safe for her. Consult with your veterinarian to discover which human-grade food you can safely give your cat. You can also find out which seafood you can safely feed to your cat under our blog’s “can cats eat” category.



Can Cats Eat Oysters? What Do I Do If My Cat Ate Oysters?

Can Cats Eat Oysters?

Thiamine Deficiency in Cats

Poisoning in Cats

Leave a comment

Your email address will not be published. All fields are required.

Check out related posts

Can Cats Eat Cooked Mince?

Can Cats Eat Cooked Mince?

It depends. Beef is the main ingredient of cooked mince or ground meat. It becomes finely minced with the help of a meat grinder, or chopped by hand. Minced meat is a versatile ingredient. It can be turned into meatballs or hamburger patties. It can also be added to pasta sauce. Aside from beef, chicken,… Continue reading Can Cats Eat Cooked Mince?

Can Cats Eat Chicken Nuggets?

Can Cats Eat Chicken Nuggets?

It is not advisable for cats to eat chicken nuggets. Chicken nuggets consist of deboned chicken meat in a breaded casing. These matchbox-sized pieces are deep fried. As an obligate carnivore, cats can benefit from eating plainly cooked chicken as it provides them with amino acids, vitamins, and minerals. However, in the case of chicken… Continue reading Can Cats Eat Chicken Nuggets?

Can Cats Eat Pepperoni?

Can Cats Eat Pepperoni?

It is not advisable for cats to eat pepperoni because of the way it is prepared. Pepperoni is a type of cured meat consisting of beef, pork, or a combination of the two. Technically speaking, your cat can eat both plainly cooked beef and pork with some conditions. However, when it comes to making pepperoni,… Continue reading Can Cats Eat Pepperoni?