The reason why Labradors cannot eat chocolate

The raw material of chocolate is cocoa beans, which contains a very toxic substance called methylxanthine, of which caffeine and theobromine are both derivatives. Theobromine is a stimulant that causes the dog's heart to beat faster and reduces blood flow to the brain, which may lead to heart disease, epilepsy and even death.
The darker the chocolate, the more theobromine it contains. Milk chocolate has about 44 mg/oz of theobromine, while regular dark chocolate has more than 300 mg/oz.

Symptoms of chocolate poisoning in Labradors

The most common symptoms are irritability, increased urination, rapid heart rate, moderate to severe anxiety, seizures, asthma attacks, bloating, gastrointestinal discomfort, Severe thirst and increased body temperature. If your Labrador is found to have these symptoms, it is best to take it to a veterinary hospital immediately. These symptoms generally appear six to twelve hours after eating chocolate. Even if your Labrador doesn't show any symptoms after eating chocolate, it's still a good idea to see your veterinarian.

What should I do if my Labrador eats chocolate?

Owners should not be anxious or afraid, because the lethal dose of theobromine to dogs is about 0.05-0.1g/500g of the dog's body weight. After your Labrador eats chocolate, the best way is to induce vomiting in your Labrador. But it's best to talk to your veterinarian before inducing vomiting. Most veterinarians will be able to tell you what to do based on the type and severity of your Labrador's symptoms. If your veterinarian recommends that you induce vomiting immediately, the doctor will usually remind you to add some water (hydrogen oxide) to your Labrador's mouth first. In addition to inducing vomiting, first aid measures that veterinarians can take include administering activated charcoal to absorb residual toxins.