29/10/2025
🌳ACORN POISONING🌳
Acorns contain tannins, which can be poisonous to dogs. The tannins in acorns have a nasty bitter taste, which may naturally put many dogs off. The amount of tannins in each acorn is different, so it’s impossible to know the number of acorns your dog would need to eat to make them unwell. The concentration of tannins in an acorn changes as it ripens. Unripe green acorns contain higher amounts of tannins, whereas brown acorns contain less, making them less poisonous.
How your dog is affected by tannins will also depend on how big your dog is, how much they’ve eaten, when they last ate, how much they chew up the acorn and if they have any other health issues.
Poisoning is not the only risk from acorns. Your dog could choke on them or they could block their stomach or gut.
If your dog has eaten acorns then you should contact your vet for advice. Your vet will be able to advise you if your dog needs to be seen by them and what treatment will be needed. Never try to make your dog sick as this can be dangerous and can cause other problems.
