Toxicity level
MildModerateSevere
- Most harmless — a few are venomous
- Varies
- Affects: Usually none; venomous bites differ
Did you know? Most household spiders are harmless if eaten; watch for the rare venomous bite.
Verdict
Feed only in moderation
Species
🐱 Cats
Why this verdict for cats
Cats often hunt spiders. Common ones are harmless, but a venomous-spider bite needs a vet right away.
Warning signs to watch for
- Pain or swelling
- Tremors
- Lethargy
🍽️ Feeding it safely?
Frequently asked questions
Can cats eat spiders?
In moderation. Cats often hunt spiders. Common ones are harmless, but a venomous-spider bite needs a vet right away.
How much spiders can cats have?
None — spiders is not safe for cats and should be avoided entirely. When in doubt, ask your vet.
Is spiders safe for dogs too?
Verdicts can differ between species. See the dog answer for spiders →
More bugs & critters for cats
By the CanMyPet Editorial Team · Reviewed against ASPCA Animal Poison Control, the American Kennel Club (AKC) and Pet Poison Helpline · Last updated June 22, 2026.
Sources
- ASPCA — People Foods to Avoid Feeding Your Pets
- American Kennel Club — Dog Nutrition
- Pet Poison Helpline — Poison List
CanMyPet provides general information reviewed against trusted sources (ASPCA, AKC, Pet Poison Helpline). It is not a substitute for professional veterinary advice. When in doubt, always contact your veterinarian.