What are the functions of onions and the nutritional components of onions

Onion, also known as onion, is a common food. It can lower blood pressure, lower blood sugar, and prevent cancer. It has many other functions and is the most suitable food for people to eat for health preservation. So what nutrients does onion contain? What are its functions?

The role of onions and the nutritional value of onions

1. Onions can prevent colds

Preventing colds is one of the important functions of onions. It contains propylene sulfide, which is a natural volatile oil. It not only tastes spicy, but also can resist cold and eliminate various viruses in the body. Normally, the body can dispel wind and cold after absorbing this substance, and it can also prevent colds.

2. Onions can resist aging

Onions contain some natural trace elements, especially the trace element selenium, which is a natural antioxidant that can clear free radicals in the body, promote body cell metabolism, and increase cell activity, thereby reducing the occurrence of various aging symptoms.

3. Onions can prevent cancer

Onions contain some quercetin, which is a natural anti-cancer ingredient that can inhibit the production of carcinogens in the human body. In addition, the trace element selenium it contains can also inhibit the formation of cancer cells. Regular consumption of onions can play a good role in preventing and fighting cancer. Onions also contain a certain amount of calcium, which can increase bone density and prevent osteoporosis.