Is rhubarb poisonous to dogs?

The large, broad leaves of the rhubarb plant are the most dangerous part. Their soluble oxalates bind with calcium in the body, which can drop blood calcium levels and form crystals that damage the kidneys. The red stalks that people cook contain lower amounts but are sour and still unsuitable.

Rhubarb appears on pet poison lists as toxic to dogs, cats and horses.

Drooling, pawing at the mouth, vomiting and diarrhea are typical early signs. Larger amounts of leaf may lead to tremors, weakness, changes in thirst or urination and blood in the urine. Because kidney effects can develop over time, vets prefer to hear about any exposure promptly.

Before you call, try to note which part of the plant was eaten, roughly how much, and when. Leaves are more concerning than stalks. Your dog's weight and any existing kidney problems also matter. Do not try to make your dog vomit or give anything by mouth unless your vet specifically tells you to.

Rhubarb is a perennial that returns every spring in many gardens and allotments. Its big leaves attract puppies who like to tear things up, and discarded leaves are often left on compost heaps after harvesting. Fence off the patch and bin the leaves in a closed container.

Rhubarb crumble, pie, fool and jam are cooked stalks with a lot of sugar, butter and cream. They carry the stalk's oxalates plus the sugar and fat. Keep these off low tables and out of reach.