The difference between purple onions and white onions

Purple onions and white onions are very common, and you may have eaten them, but do you know the difference between them? Do you know what the difference is besides the color? In fact, purple onions and white onions also have certain differences in efficacy and nutritional value. Below I will write down their differences and share them with you.

The difference between purple onions and white onions

1. Purple onion has good anti-cancer effect

Purple onions are particularly effective in preventing cancer, but white onions do not have this effect. This is because the anthocyanins and vitamin C contained in purple onions are natural anti-cancer ingredients, while these substances are not found in white onions. Usually people eat purple onions to prevent cancer, but eating white onions can only absorb certain nutrients and cannot reduce the occurrence of cancer.

2. The content of quercetin in purple onion is high

Purple onions also contain a substance called quercetin, which is not found in white onions. After being absorbed by the human body, this substance can clear viruses in the body, inhibit the body's absorption of cholesterol, reduce the three highs, and prevent the occurrence of various diseases such as stroke and arteriosclerosis.

3. Purple onion can cure prostatitis

Purple onion can cure prostatitis but white onion cannot, which is the biggest difference between them. The content of sulfide and prostaglandin in purple onion is very high. Men who eat it regularly can prevent prostatitis. After soaking it in red wine, it can also improve kidney function, significantly reduce the symptoms of prostatitis, and improve male sexual function. In a word, the therapeutic effect of purple onion is much higher than that of white onion.