Could my 4 kg cat's joint supplement contain wild mushrooms as a hidden ingredient?

Short answer

It's very unlikely in commercial supplements, but you must check the label. Some human herbal blends use mushrooms like reishi or shiitake, which are cultivated and usually safe when processed. True wild, foraged mushrooms are never listed because they're unpredictable and toxic. If the supplement lists any mushroom, call the manufacturer to confirm it's a cultivated species. Never give your cat any mushroom you've picked yourself — several species cause sudden liver failure.

Wild mushrooms — Food safety facts

Do not feed · Cats · full breakdown on the linked food page

Never feed wild mushrooms — several species cause liver failure or death. Even store mushrooms are best cooked.

Dogs and cats carry the same rating (Do not feed), so the notes below hold for either pet.

Wild mushrooms should not be given to cats at all. Even a small amount can do harm, so there is no portion small enough to be safe.

Do not induce vomiting and do not give milk or oil to “dilute” it. Note the food and roughly how much was eaten, then call your vet or a pet poison hotline and follow their advice on whether to bring the pet in straight away.

Wild mushrooms has no place in everyday feeding: keep the rest of the day's food unchanged after this and watch the litter box and how quickly they finish the next meal.

The full verdict, portion guidance and serving notes are collected on the Wild mushrooms food facts page.

Open the full food page: Wild mushrooms food facts →

Could my 4 kg cat's joint supplement contain wild mushrooms as a hidden ingredient?

Wild mushrooms — Food safety facts

Owners also ask