Because onions contain a toxic substance called n-propyl disulfide, and dogs have no 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 who have dogs around me, everyone knows that dogs can't eat chocolate, onion, ginger and garlic, but the amount is definitely ok, but the onions mentioned in this question are different. Even a dog of 8 kg may be life-threatening if he eats onions.

Some people will say that this is completely nonsense. People will be fine if they eat it. What can happen to dogs? Don't worry. Let's talk about it with you today and let you know why.

Onions actually contain toxic components, which are called n-propyl disulfide. This toxicity can oxidize hemoglobin and then form Heinz bodies. If red blood cells contain many Heinz bodies, they will be swallowed up by reticuloendothelial system cells, which will lead to anemia, rupture of red blood cells, and hemoglobin will overflow and filter out through glomeruli, resulting in hemoglobinuria. And it may cause damage to bone marrow.

Usually, if a dog eats a medium-sized cooked onion or food with onion juice continuously, Heinz's body will appear in red blood cells, which may cause anemia in 7-1 days.

According to the data, the dose of oral onion poisoning in dogs is about 15-2g/kg body weight, even if the cooked food with onion and onion juice is fed to dogs, it may cause poisoning. There is also a laboratory test data. If a dog weighing 15-25kg eats a medium-sized onion, it will have severe anemia in about 7 days.

But the question is, even if onions contain toxins, why do people eat them? Because the human body is very strong, and there is an enzyme in our body, which can digest n-propyl disulfide, so that poisons and hemoglobin will not react.

The explanation should be clear. 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, but people do. Moreover, sulfur compounds and flavonoids contained in onions are good for our human cardiovascular and cerebrovascular diseases.

explained the reason, and everyone should pay attention to the poisoning symptoms. Once the dog eats too much onion, the following poisoning symptoms may appear:

Acute poisoning:

It usually occurs in 1-2 days, and red urine is visible to the naked eye, but the color is different, and it will go through the process of light red → deep red → black red. The most serious urine situation 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 onion or onion juice for a long time will have mild anemia and jaundice.

Generally speaking, however, many of the dog's onion poisoning is acute. After all, no shovel officer will feed the dog with onion juice every day. Anyway, I won't. Therefore, dogs with onion poisoning usually have symptoms in about 1~2 days, so please seek medical advice in time.

Speaking of this, it occurred to me that this happened to my friend's dog a long time ago. It seems that apart from onions and garlic, he treated it himself first, that is, he used soapy water to induce vomiting. Of course, diluted hydrogen peroxide is also possible. After inducing vomiting, it can alleviate the symptoms of dog poisoning. After inducing vomiting, my friend took the dog to the pet hospital to see a doctor. The doctor asked when and how much he ate onions. That's right.

There are thousands of delicious foods in the world, and it is understandable that the shovel officers definitely want to give their dogs a treat. But many gourmet people eat them, which may be fatal to dogs. I hope that the shovel officers can feed dogs scientifically and that every dog can be treated well by the world.