Is Aloe Vera Toxic to Dogs and Cats?

Cats · Mildly toxicDogs · Mildly toxic

It is mildly toxic. Eating aloe leaves can cause vomiting and diarrhea in dogs and cats.

Botanical name: Aloe barbadensis

Why

Aloe vera leaves contain saponins and anthraquinone glycosides (found in the yellow latex just under the skin), which act as a laxative and irritate the digestive tract.

The clear inner gel is less of a concern, but products made for people may contain other ingredients, so do not apply or give aloe products to pets without veterinary advice.

How to recognize it

A succulent with thick, fleshy, grey-green leaves edged with small teeth, growing in a rosette. A cut leaf shows clear gel inside and a yellow sap just under the skin, which is the part that upsets the stomach.

Signs to watch for

  • Vomiting
  • Diarrhea
  • Lethargy
  • Change in urine color (occasionally)

What to do

  • Contact your veterinarian if vomiting or diarrhea is severe or lasts more than a day.
  • Keep aloe plants out of reach, especially of dogs that chew.
  • Do not use human aloe gels on pets that may lick them off.

Pet-safe alternatives

Looking for something similar without the risk? These plants are listed as non-toxic to cats and dogs.

Related plants

← All plants

Sources

  • ASPCA Animal Poison Control Center. Toxic and Non-Toxic Plant List (dogs, cats).
  • Merck Veterinary Manual. Toxicology section.
If your pet has eaten a toxic plant, contact your veterinarian or an emergency animal hospital right away and bring a photo or piece of the plant. In the US you can also call the ASPCA Animal Poison Control Center at (888) 426-4435 or the Pet Poison Helpline at (855) 764-7661 (fees may apply).