Can Cats Eat Lentils?
By Pettings · Sources checked Nov 2, 2026
Lentils are an occasional treat at most, and only when they are plain, fully cooked and soft, with nothing added. The ASPCA does not list lentils among the people foods to avoid, but most lentil dishes are cooked with onion and garlic, which are a problem for cats. And the Cornell Feline Health Center reminds owners that cats are obligate carnivores that rely on nutrients found only in animal products.
What Lentils Offer a Cat
Lentils are a legume. They supply starch, fiber and plant protein. Cats are built to get their protein from meat, and plant protein does not replace it. Lentils do show up in some commercial pet foods, especially grain-free ones. The FDA looked into reports of heart disease (dilated cardiomyopathy) in dogs eating diets where peas or lentils were common ingredients, but it has not found a cause, and its diet analysis covered dogs, not cats. That question applies to whole diets built around legumes, not to a teaspoon of lentils now and then.
How Much Lentils Can a Cat Have?
For a 10-pound adult cat with no known food allergy and no medical condition, 1 teaspoon of plain cooked lentils, mashed, is plenty, and it adds only a few calories. WSAVA advises keeping treats below 10 percent of daily calories, about 22 to 25 treat calories a day for a cat of this size, and the lentils belong inside that allowance. Take a little off the regular meal so the day's total stays the same. Start with less the first time. Kittens, seniors and cats with diabetes, kidney disease, urinary stones, pancreatitis or food allergies should have their veterinarian decide whether lentils fit.
How to Serve It
Rinse dried lentils and simmer them in plain water until they are completely soft. Red lentils break down quickly and mash easily; brown and green lentils take longer. Cool them and mix a small spoonful into your cat's regular food. Canned lentils should be the no-salt-added kind, rinsed well.
Skip lentil soup, dal and curries. These almost always start with onion, garlic or both, often along with salty broth and spices. The Merck Veterinary Manual names cats as the species most susceptible to onion and garlic poisoning and links many cases to concentrated forms such as powders and soup mixes. Dry, uncooked lentils are hard and should not be offered. Lentil pasta and lentil chips are processed snacks with salt and seasoning, so they are not a stand-in.
If your cat has a medical condition or eats a prescription diet, ask your veterinarian before offering lentils.
Common Questions
Are lentils in cat food bad for cats?
Lentils in a complete and balanced cat food are not known to be a problem for cats. The FDA studied reports of heart disease in dogs eating diets high in peas and lentils, but it has not found a cause, and its ingredient analysis covered dog foods. If you have concerns about your cat's food, talk with your veterinarian rather than switching diets on your own.
Can cats eat lentil soup?
Cats should not eat lentil soup. Most recipes start with onion and garlic and use salty broth, and the Merck Veterinary Manual says cats are the species most susceptible to onion and garlic poisoning. If you want to share lentils, scoop out a teaspoon of plain cooked lentils before anything else is added to the pot. Call your vet if your cat ate seasoned soup.
Can kittens eat lentils?
Kittens are better off without lentils. They need a complete kitten food to grow, and a growing kitten has little room for plant starch. A taste of plain cooked lentils will not hurt, but it adds nothing. If a kitten got into a seasoned lentil dish with onion or garlic, call your veterinarian, since Merck notes cats are the species most sensitive to those plants.
Can cats eat raw lentils?
No. Dry, uncooked lentils are hard and not something to offer a cat. Lentils need to be simmered in plain water until fully soft before a cat gets even a taste. If your cat chewed a few dry lentils from a spilled bag, it will probably pass them without trouble, but call your veterinarian if it starts vomiting or stops eating.
Can cats eat canned lentils?
Canned lentils can work only if they are the no-salt-added kind and are rinsed well. Regular canned lentils and lentil soups are packed in salted liquid, and the ASPCA warns that salty foods can cause thirst and vomiting in pets. Check the label for onion or garlic too. Then mash a teaspoon into your cat's food and count it as part of the day's treats.