Safe in moderation

Can cats eat wheatgrass?

Cats can nibble plain pet wheatgrass in moderation. Many cats enjoy the texture as a chew outlet. Prefer indoor pet grass kits over treated lawns, and do not force grazing if your cat is uninterested.

Not medical advice — general pet-safety info only. Confirm with your vet before changing your cat’s diet.

Updated Aug 24, 2026 Category Nutrition

Better everyday options

Wheatgrass is a chew outlet. These treats cover everyday rewards and hairball-focused options.

Hairball cat treats

If hairballs are the real concern, use products made for that job.

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Healthy cat treats

Everyday rewards that do not depend on plant chewing.

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Natural cat treats

Simple cat treats for routine training and bonding.

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How much is okay?

Offer a small amount of clean pet wheatgrass as a chew outlet—not a vegetable bowl.

Kitten / small adult
A few blades
Keep it tiny and occasional.
Typical adult
A small handful of blades
Plain preparation only.
Large / big appetite
A small handful of blades
Still an extra, not a meal.

Rule of thumb: treats of all kinds should stay under ~10% of daily calories.

How to prepare them

  • Grow or buy indoor pet wheatgrass meant for cats.
  • Rinse if dusty and keep the tray clean.
  • Avoid recently treated lawns, roadside grass, and ornamental plants you cannot identify.

Risks & exceptions

  • Pesticides and fertilizers on outdoor grass.
  • Toxic lookalike plants outdoors.
  • Eating string, ribbons, or plastic with plant toys.

Pet wheatgrass can be a safe chew outlet; treated lawns and unknown plants are not.

If they ate too many

If they ate more than intended, watch for stomach upset and changes in behavior.

  • Mild vomiting after a big nibble
  • Soft stool

Call your vet / pet poison line if:

  • Repeated vomiting
  • Known pesticide exposure
  • Eating string or non-plant material

FAQ

Is wheatgrass the same as cat grass?

Pet wheatgrass is one common type of cat grass; oat and barley grass kits are similar options.

Is wheatgrass good for hairballs?

It is not a reliable hairball treatment—ask your vet about hairball care.

Can cats eat outdoor lawn grass?

Only if you are sure it is untreated and non-toxic; pet wheatgrass is safer.

Affiliate disclosure: we may earn a commission from product links. Safety guidance is editorial and may change — verify with your veterinarian for your cat.