There has been a recent increase in thorny information about "black rot" on social media, which claims it can be contracted through onions.

Messages posted on platforms such as WhatsApp and Facebook suggest that the black layer that appears most commonly on onions can cause mucosal membrane disease once it enters the human body.

However, this information is incorrect. According to the US Department of Agriculture, the black rot on the onions is the result of "Aspergillus nigger," a common fungus found in the soil, but this type of fungus is rarely infectious.

The role of onions may be thought to be limited to the delicious flavor of food, but nutritionists maintain that this herbal plant has many benefits in combating many diseases of the age.

A medium-sized grain of onions contains about 90 percent of the water, 40 calories, and 9 grams of carbohydrates, in front of fat at only 0.10 grams.

Onions play a role in reducing bad blood cholesterol, which enhances heart health, and also contains vitamin C and compounds that strengthen body immunity.

Experts say that carcinomas in onions protect humans from cancer, particularly colon and stomach cancer.

The chromium contained in the onion at its roots contributes to the regulation of the blood sugar rate, and onions are one of the most important antigen and bacteria to the gum.

The onion helps to stop the nasal bleeding, by putting a slice down the nose and inhaling it. In this context, experts are advised to take a combination of honey and onions to treat fever and cold drops.

It should be noted that onions contain folic acid, which, according to nutrition experts, helps humans sleep, reduces depression and improves mood.