Lemon is a sour food. If the dog eats too much, it will stimulate the stomach and cause a lot of symptoms such as salivation, vomiting and diarrhea. Therefore, for the dog's health, the owner should put the lemon out of the dog's reach to prevent it from eating lemon by mistake and causing gastrointestinal adverse reactions.

All citrus fruits contain an organic compound called psoralen, which is very common in lemons and usually has the highest content in peels, seeds and stones. Depending on the physical condition of different dogs, psoralen can cause a series of symptoms in dogs.

However, psoralen exists not only in citrus fruits, but also in other plants, such as celery and common figs. Licking these plants may not do much harm to the health of dogs, but if dogs eat a whole lemon, some bad symptoms may appear.

Eating habits of dogs:

Dogs are omnivores. When feeding, animal protein should be prepared in the feed, supplemented by vegetarian ingredients to ensure the normal development and health of dogs. Dogs sometimes eat grass, but they eat very little and occasionally spit it out. Dogs eat grass not to satisfy their hunger, but to clear their stomachs, mainly because of their unique gastrointestinal structure.

The dog's stomach is very big, accounting for about 2/3 of the abdominal cavity, but its intestines are very short, accounting for about13 of the abdominal cavity. Therefore, dogs basically use their stomachs to digest food and absorb nutrients. It is easy to digest meat food, and it is difficult to digest things with "tendons" such as leaves and grass. Dogs are omnivores and can feed on vegetables and grains when they are in trouble.

Typical wild carnivores' dietary nutrition comes from the stomach contents of herbivores they capture. In addition, scientists have also found that high-protein foods (eating a lot of meat) can help them prevent muscle tissue damage, such as the dog sled race in Idatarod, Alaska, and other similar situations under extreme pressure.

Dogs like to chew bones. This is also the habit of biting prey in the original ecology. Always give it some bones when feeding. Remember: don't use bird bones, it may puncture the dog's stomach. Dogs generally have the habit of feeding on people and their own feces to varying degrees.

Studies show that dogs get along with humans in the process of tens of thousands of years of domestication, which is one of the important food sources that dogs have to accept during the early food shortage period of human society. Some people think that this is a pathological manifestation of dogs under the condition of insufficient food, malnutrition, lack of some trace elements or parasitic diseases.