Nutritional value of purple onions

I love eating onions. In the past, I only knew that onions are rich in minerals, especially potassium. Now I know that they are so nutritious.

Nutritional value of purple onions

As we all know, onions come in purple, white and yellow skins. Different colors of onions have slightly different nutritional values, and purple onions have the highest nutritional value. Today, I will introduce the nutritional value of purple onions to you and tell you which color of onion has higher nutritional value.

In terms of nutritional value, purple onions are more nutritious. This is mainly because purple onions are spicier, which means they contain more allicin. Allicin combined with vitamin B1 can produce allithiamine, which has the miraculous effect of eliminating fatigue and enhancing physical strength.

The purple part of purple onions contains more quercetin, which is a natural anti-cancer substance. Studies have shown that people who eat onions regularly have a 25% lower incidence of gastric cancer than those who eat less or no onions, and the mortality rate of gastric cancer is also 30% lower.

Purple onion nutritional facts

Purple onion, yellow onion, white onion, which one has higher nutritional value?

Purple onions have higher protein, dietary fiber, and minerals such as calcium, phosphorus, potassium, sodium, magnesium, zinc, and iron than yellow and white onions, but the latter two have slightly higher carotene and vitamin C content than purple onions. In general, the nutritional value of purple onions is higher than that of white and yellow onions.

Purple onion benefits

Purple onions are rich in anthocyanins. In addition to having strong antioxidant capacity, preventing high blood pressure, and alleviating liver dysfunction, anthocyanins are also recognized by many people for their effects of improving vision and preventing eye fatigue. People who use computers or read books for a long time should consume more.

In addition, although purple onions and white and yellow onions have the same ability to lower blood lipids, purple onions have added beauty and anti-aging effects, while yellow and white onions do not.