1. Grapes, Raisins, & Currants

The exact reason why grapes are toxic to dogs is unknown, but one thing is for sure: they can be deadly for our four-legged friends. Just one or two grapes can lead to permanent kidney damage or sudden kidney failure in an otherwise healthy dog. Less severe symptoms include vomiting, diarrhea, and stomach pain.

Although some pups have a higher tolerance to whatever  poisonous substance is in the fruit, it’s certainly not worth the risk. Of course, this also means that dogs should never eat raisins or currants, since they’re just dehydrated grapes.

2. (Wild) Mushrooms

While mushrooms that are safe for human consumption and can be sold at the grocery store are safe for dogs to eat if served plain, the danger of wild mushrooms should be taken very seriously. Because poisonous mushrooms are so potent, you should consider every species of wild-growing fungi to be a threat to your pet. The AKC notes that pet parents can’t trust your dog to “sniff out” the toxins to avoid dangerous mushrooms on their own, since many of them have an appealing scent.

If your pooch so much as takes a nibble of a mushroom she found outside, you should call your vet or poison control immediately. Take note of the time, and gather as much information to bring to the vet as you can. In order to prevent accidents, make sure to remove all mushrooms from your yard, and scan the ground during walks and trips to the dog park for wild fungi.