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Is Lamb’s Quarters Toxic to Dogs?

⚠️ Mildly ToxicSeverity: Mild

✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit

⚠️ Educational info only. If your pet just chewed something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.

Lamb’s quarters is only mildly toxic to dogs. Eating a quantity of leaves may cause vomiting and diarrhea; occasional small nibbles are usually harmless.

Also known as: Wild Spinach, Goosefoot, Pigweed, Chenopodium album · Chenopodium album

What makes it toxic

Saponins and oxalic acid in the foliage plus nitrates the weed accumulates from soil. Effects are dose-dependent gut irritation, with kidney strain only from chronic large intake.

Warning signs to watch for

Drooling, mild vomiting and loose stools after a big meal of leaves; habitual grazing may cause dull coat, weight loss or increased thirst over time.

What to do if your dog eats it

Nothing urgent for a one-off nibble — provide water and watch for a day. Call the vet if vomiting lasts, or discuss grazing habits if the dog returns to the patch repeatedly.

Common questions

My dog grazes lamb’s quarters on every walk — should I stop him?

Yes. Repeated intake adds up saponin and nitrate exposure, and some dogs prefer weeds to their food. Redirect with treats and leashing past the patch.

Is it dangerous in hay or compost where dogs dig?

Dried material keeps its alkaloids, so hay, silage and fresh compost clippings all carry the same mild-to-moderate risk.

More plants checked for dogs

Pothos☠️ ToxicYes, pothos is toxic to dogs. Chewing any part of the vine releases calcium oxalate crystals tha Aloe Vera⚠️ Mildly ToxicAloe vera is mildly to moderately toxic to dogs. The skin and latex layer of the leaf contain co Spider Plant✅ Non-ToxicNo, spider plants are non-toxic to dogs. A dog that nibbles the arching leaves is not at risk of Easter Lily⚠️ Mildly ToxicEaster lilies are only mildly toxic to dogs — they usually cause stomach upset, not the fatal ki Sago Palm☠️ ToxicYes — sago palm is severely toxic to dogs, with a documented fatality rate around 50% when untre Boston Fern✅ Non-ToxicNo, Boston ferns are non-toxic to dogs. Chewing a frond will not poison your dog.

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.