The amount of garlic in the bread your dog consumed will determine the reaction to its health. The size and breed of your dog also determine the effects, particularly Japanese dog breeds like Akita and Shiba Inu, which for some reason are very sensitive to garlic.
Garlic consumption has a cumulative effect, and it can build up in your dog’s system over time. It contains the chemical compound thiosulfate.
While human enzymes can digest this compound, dogs cannot. Thiosulfate acts by rupturing the red blood cells, called hemolysis, and destroys the hemoglobin, which is responsible for transporting oxygen from the lungs to other parts of the body.
Lack of oxygen in the blood, or hemolytic anemia, would speed up heart rate and cause your dog to tire easily and lose breath becoming weak and lethargic. This would also cause the gums and inner eyelids to turn pale.
Other compounds found in garlic can also relax the heart muscles and dilate the blood vessels reducing blood pressure. This increases the heart rate further making it difficult for blood to be pumped.
Signs Of Garlic Toxicity In Dogs
The following symptoms may take a while to show their effect, and some would even take days to appear. If you suspect that your dog has ingested large amounts of garlic, it is better to take it to the veterinarian immediately.
How Much Garlic Bread Can Kill A Dog?
For the most part, a small slice of garlic bread would not probably harm your dog and only cause minor discomfort like a gassy stomach.
Since most commercially available garlic bread only uses a sparse amount of garlic, it is nothing to lose sleep over especially if your dog ate it only once.
If, however, your pooch accidentally ate the whole loaf of bread or has been consuming small amounts of garlic bread regularly, then you should look for warning signs of garlic toxicity or poisoning.
Researchers have calculated that approximately 1.5 to 3 teaspoons of raw garlic per pound of a dog’s body weight are what it takes to produce harmful effects on your dog. The same amount is also applicable to garlic powder.
In simpler terms, a 20-pounder dog would need to ingest around 50 cloves of garlic to be toxic. That is a large amount but remember that garlic’s effect is cumulative. Ingesting small amounts regularly would have negative impacts in the long run.