Can cats eat beef liver? A small-portion guide for cat owners

Small pieces, now and then

Cats can eat beef liver as an occasional extra, broken into very small pieces. The concern is vitamin A. According to VCA Animal Hospitals, cats are more susceptible to excess than dogs, and problems are linked to raw liver fed over weeks to months.

Why cats need a different rulebook

Cats are strict meat eaters, and most of them are interested in liver the moment the bag opens. That interest is the reason to be careful. A cat is small, its daily calories are low, and a few pieces that would be a modest reward for a big dog are a large share of a cat's day.

The vitamin A question is sharper for cats too, according to VCA. Its page on the subject is written about cats, and it says the vitamin builds up in the liver when a cat takes in more than it needs. The Merck Veterinary Manual gives the cat's dietary requirement as 10,000 IU of vitamin A per kilogram of diet, and states that harmful amounts are many times higher. Merck adds that signs usually resolve once the exposure ends. For how the same numbers look for dogs, see our beef liver guide for dogs.

For a sense of scale, USDA FoodData Central lists 16,900 IU of vitamin A in 100 grams of raw beef liver. That figure is for liver as a whole food with its water in, and the Merck figure is per kilogram of a full diet, so the two do not line up one to one. They do show why liver belongs at the edge of a cat's menu and not the middle.

If you want to read further, a feline medicine journal published a case report on hypervitaminosis A in a cat that had been fed mostly raw liver. It is a single case, but it is the kind of story that started the caution.

Using freeze-dried liver with a cat

Our bag is freeze-dried raw beef liver and nothing else, made in Malvern, Pennsylvania from Pennsylvania farm beef. It is labeled as a dog treat, and it works for cats when you break it down to cat size.

• Crumble, do not hand over a chunk. A piece sized for a dog is far too much for one cat reward. Break it into flakes no bigger than a lentil.
• Use it as a topper on occasion. A pinch of crumbs over wet food is plenty.
• Keep it occasional. Make liver the special thing, not the everyday thing.
• Wash your hands. The back label says to wash hands after handling, which matters with a raw product and a cat that eats from your fingers.

Our label lists 81.6 kcal ME per ounce, and a cat's daily calories are small. The treat guideline from VCA of 10 percent of daily calories is written for dogs, and our dog portion guide works through it. For a cat, ask your veterinarian how much room treats have, especially if your cat is on a prescription diet or has a kidney or liver history.

The same bag serves both. For a cat, crumble it fine and make it last. Details on the product page.

Kittens and senior cats

Kittens are growing and their diet is built to cover that. Older cats often have a diet set by the vet already. In both cases, check before liver becomes a regular extra. That is not because liver is unusual for cats. It is because small bodies leave less room for error.

What to leave out

Liver for a cat should be plain. If you cook it at home, cook it with nothing added, and keep onion and garlic well away from it. Liver pâté made for people usually has seasoning in it, so skip that. Cod liver oil is a separate product that VCA also names in connection with excess vitamin A, so do not stack it on top of liver treats.

When to bring it up with the vet

VCA and Merck describe vitamin A trouble in cats as something that builds over a long period of heavy feeding, not from an occasional crumb. If liver has quietly become a daily habit in your house, mention it at the next checkup, with a rough idea of how much. VCA's page lists the signs vets look for, and your vet can tell you whether anything needs a closer look.