Toxicity level
MildModerateSevere
- Usually low-risk — but check for xylitol
- Varies
- Affects: Drowsiness; xylitol is the real risk
Did you know? Plain melatonin is fairly low-risk, but many gummies contain xylitol (toxic).
Verdict
Feed only in moderation
Safe amount
Vet guidance only
Species
🐱 Cats
Why this verdict for cats
Melatonin is occasionally used in cats under veterinary direction. Never give human gummies, which may contain toxic xylitol.
🍽️ Feeding it safely?
Frequently asked questions
Can cats eat melatonin?
In moderation. Melatonin is occasionally used in cats under veterinary direction. Never give human gummies, which may contain toxic xylitol.
How much melatonin can cats have?
Recommended: Vet guidance only. When in doubt, ask your vet.
Is melatonin safe for dogs too?
Verdicts can differ between species. See the dog answer for melatonin →
More medications 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.