Why are onions poisonous to dogs?

Because onions contain a toxic substance called n-propyl disulfide, and dogs don't have enzymes that can digest this toxic substance.

What? Onions are poisonous. Many friends who have dogs should know that dogs can't eat onions, but they know that many people can't help but want to give them to their dogs. Just like many friends around me who have dogs, everyone knows that dogs can't eat chocolate, onions, ginger and garlic, but the amount is definitely ok, but the onions mentioned in this question are different. Even a dog weighing 80 kg may be life-threatening after eating onions.

Some people will say that this is completely nonsense. It's good for people to eat. What will happen to dogs? Don't worry, I'll talk to you today and let you know why.

Onion actually contains toxic components, the scientific name is n-propyl disulfide, which can oxidize hemoglobin and then form Heinz. If red blood cells contain a large number of Heinz bodies, they will be swallowed up by cells of reticuloendothelial system, causing anemia, rupture of red blood cells, and hemoglobin overflow, which will be filtered out through glomeruli, resulting in hemoglobinuria. And it may cause damage to bone marrow.

Usually, if dogs eat a medium-sized cooked onion or food containing onion juice continuously, Heinz will have red blood cells in his body, which may cause anemia within 7- 10 days.

The data show that the dose of onion poisoning in dogs is about 15-20g/kg body weight, even if cooked food with onion and onion juice is fed to dogs, it may also cause poisoning. There is also a laboratory test data, a dog weighing 15-25kg, if it eats a medium-sized onion, it will appear severe anemia in about 7 days.

But the question is, even though onions contain toxins, why do people eat them? Because the human body is very strong, we have an enzyme in our body that can digest n-propyl disulfide, so that the poison will not react with hemoglobin.

Explain clearly. In fact, the reason why dogs are easily poisoned by eating onions is that there are no enzymes in dogs that can digest toxic substances in onions, while people do. Moreover, the sulfur compounds and flavonoids contained in onions are good for our human cardiovascular and cerebrovascular diseases.

Explain the reason, everyone should pay attention to the symptoms of poisoning. Once the dog eats too many onions, the following poisoning symptoms may occur:

Acute poisoning:

It usually occurs in 1~2 days, and red urine can be seen with naked eyes, but the color is different, and it will go through the process of light red → dark red → black red, and the most serious urine is brown or soy sauce color. There will also be loss of appetite, listlessness, palpitation, vomiting and diarrhea, which need timely treatment, otherwise it will be life-threatening

Chronic poisoning:

Dogs that eat onions or onion juice for a long time will have mild anemia and jaundice.

Generally speaking, however, onion poisoning in many dogs is acute. After all, no shovel officer will feed the dog onion juice every day. I won't anyway. Therefore, if a dog suffers from onion poisoning, it usually takes about 1~2 days for symptoms to appear. Please see a doctor at this time.

Speaking of which, I remember that this happened to my friend's dog a long time ago. It seems that in addition to onions and garlic, he first treated it with soapy water to induce vomiting. Of course, diluted hydrogen peroxide is also possible. After vomiting, it can alleviate the poisoning symptoms of dogs. After vomiting, my friend took the dog to the pet hospital to see a doctor. The doctor asked him when he ate onions and how much. By the way, if his dog

There are thousands of delicious foods in the world, and it is understandable that shovel officials must want to treat their dogs. However, many gourmet people are fine after eating, but it may be fatal to dogs. I hope that the shovel officers can feed the dogs scientifically and that every dog can be treated well by the world.