Can guinea pigs eat custard?
Quick verdict
Unsafe
Key risk
Dairy and sugar are harmful to herbivores.
Why
Guinea pigs cannot have custard.
Can guinea pigs eat custard, and why?
Guinea pigs cannot have custard. Dairy and sugar are 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
Dairy and sugar are harmful to herbivores.
If your guinea pig has eaten custard, 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 youMore foods guinea pigs might eat
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Frequently asked questions
Can guinea pigs eat custard?
Unsafe. Guinea pigs cannot have custard.
What happens if my guinea pig eats custard?
Dairy and sugar are harmful to herbivores. If your guinea pig has eaten custard, contact your vet or the Animal PoisonLine (01202 509000) straight away — don’t wait for symptoms.
Is custard poisonous to guinea pigs?
Unsafe. Guinea pigs cannot have custard.
Check custard for another pet