Why Do Cats Eat Grass?

August 24, 2020

Why Do Cats Eat Grass?

If your kitty is snacking on grass, she could be suffering from tummy troubles, but can cats eat grass when they're feeling just fine? And why do cats eat grass in the first place?

Why Do Cats Eat Grass?

Cats are "obligate carnivores," meaning they require a steady diet of meat to thrive. They don't need a salad with their chicken dinner, and their bodies just don't have the proper enzymes necessary for properly processing vegetation. But, can cats eat grass? The short answer is "yes." Your furry friend might enjoy crunching on some safe greens (more on that later), but choosing the right cat food that provides necessary nutrients is more important than serving up a plate of freshly-cut grass.

As it turns out, cats may munch on grass for some of the same reasons that people incorporate greens into their own diets. Some, like Animal Planet, theorize that cats eat the green stuff because it aids in the removal of non-digestible materials, like fur, assists in relieving constipation, and provides them with nutrients, like folic acid. Chewing on grass or plants also can alleviate stress, according to Vetstreet.

Digestive Needs

Although experts do not refer to grass as being necessary for cats' digestive system, reports Animal Planet, cats may seek out soft blades of grass "to settle their stomachs, much as humans pop an antacid tablet." If your cat overeats or is blocked up, her instinct is to sweep all that out with the fiber found in vegetation. Have you ever noticed your kitty chewing on the toilet paper roll? The need for fiber also motivates this behavior — she's seeking relief, not trying to waste household goods.

Cats require folic acid (vitamin B9) to aid digestion and support cell growth. Kittens get their required dose of folic acid from their mother's milk, but if a cat doesn't get enough of it, notes Animal Planet, she can develop anemia. Because folic acid is present in grass juice, some researchers speculate that cats undertake a quest for grass to supplement this deficiency, but there is no definitive evidence that they do so — and the cats themselves aren't talking. If you suspect that your furry friend is coping with a nutritional deficiency, speak with your veterinarian before trying to treat the issue on your own.

Anxiety

Similar to their pet parents, cats partake in what's called "stress eating" or "emotional eating," causing a kitty to eat not to relieve hunger pangs but to relieve anxiety or to satisfy an oral fixation. When stress hits, she needs an outlet: "A cat that constantly eats grass or plants also may be exhibiting signs of a displacement behavior," says Vetstreet. "Some cats may exhibit over-grooming or excessive vocalization when they are anxious, while other cats may try to engage in a different activity to soothe themselves, such as finding something to chew on." If you notice that your fur baby is chewing on grass or household plants excessively or shows other signs of stress or anxiety, such as withdrawing from family members and displaying aggressive behavior, get in touch with your vet to see how you can help your kitty.

What to Look For

So, why do cats eat the green stuff? Well, grass offers them relief from a variety of issues. This relief comes about most commonly in the form of hairballs, familiar to pet parents everywhere. Some cats throw up after eating because of other factors, such as changes in their diet, but if you know your cat has ingested grass, expect it to come back out again.

Tabby cat on a purple leash licking a blade of grass.

Because they lack the proper enzymes to digest it, cats who eat grass will then vomit that grass, along with the hair and/or other indigestible items. However, "when the fur moves deep into the digestive tract," explains PetMD, "kitty needs a little help to break it down and pass it out the other end." In other words, if the blades of grass she consumed don't come back up as hairballs, your cat will expel them in her litter box.

Prior to being wholly domesticated, cats that foraged for food in the wild (and as big cats, like lions and tigers, still do) oftentimes ingested the entirety of their prey — bones, hair, and all — which rendered vomiting a necessary part of the digestive process. Instinctively, even the most pampered kitty knows that chewing on grass will remove the problematic waste matter in her digestive system, one way or another.

Safety and Prevention

As noted above, if your cat has consumed grass, there are a few ways it will pass through her system: hairball, stool or a combination of both. If she enjoys chomping on a few blades of grass periodically and easily expels the plant matter, you needn't worry too much.

However, the Independent Ireland reports, sometimes the grass can "end up stuck at the back of the nose, inside the nasal chambers, causing fits of sneezing. This is more common in cats than dogs. When it happens, the grass needs to be physically removed." If this occurs, then contact your vet right away for safe removal.

Untreated, plain grass makes a nice salad bar for your feline friend, but if she consumes grass or other plant matter (indoor or outdoor) that has been treated with pesticides or herbicides and/or is naturally toxic to animals, it's important to seek medical attention for her right away.

Reactions to ingestion of toxic vegetation range from mild to severe, including death; therefore, it's crucial to know which grasses and plants are safe for your kitty. Keep in mind that toxic grasses, plants, and flowers, such as lilies, can be found in many popular floral bouquets. The American Society for the Prevention of Cruelty to Animals® provides a comprehensive list of toxic and non-toxic plants to cats.

The safest option is to keep your cat indoors and remove all toxic plants from your home. If your cat does explore the great outdoors, provide her with a secure collar with an ID tag.

Now that you know the answer to, "Why do cats eat grass?" you also can grow your own little patch of grass by planting wheat-berry seeds, as described by Petcha, so that your indoor kitty has her personal, safe lawn on which to graze.

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Why Do Cats Eat Grass?

Why Do Cats Eat Grass?

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