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Can guinea pigs eat marmite?

Unsafe

Quick verdict

Unsafe

Key risk

Extreme salt is harmful to herbivores.

Why

Guinea pigs cannot have Marmite.

Can guinea pigs eat marmite, and why?

Guinea pigs cannot have Marmite. Extreme salt is harmful to herbivores.

Guinea pigs are herbivores who need unlimited hay or grass, a daily portion of fresh leafy veg, and a daily source of vitamin C — which they cannot make themselves. Their gut relies on constant fibre, so too much sugar or any sudden change can cause painful bloat and diarrhoea.

Warning — what to watch for

Extreme salt is harmful to herbivores.

If your guinea pig has eaten marmite, don’t wait for symptoms — contact your vet immediately, or call the Animal PoisonLine on 01202 509000 (24/7, UK). Signs of a problem can include vomiting, diarrhoea, drooling, lethargy, tremors or loss of appetite.

🚨 Find an emergency vet near you

More foods guinea pigs might eat

Make treat time better

Handy kit for feeding guinea pigs well:

Frequently asked questions

Can guinea pigs eat marmite?

Unsafe. Guinea pigs cannot have Marmite.

What happens if my guinea pig eats marmite?

Extreme salt is harmful to herbivores. If your guinea pig has eaten marmite, contact your vet or the Animal PoisonLine (01202 509000) straight away — don’t wait for symptoms.

Is marmite poisonous to guinea pigs?

Unsafe. Guinea pigs cannot have Marmite.

Check marmite for another pet

General guidance based on established veterinary sources (ASPCA, PDSA, Blue Cross, RSPCA), not a substitute for advice from your vet. If you’re ever unsure, or your pet has eaten something harmful, contact your vet or the Animal PoisonLine on 01202 509000.