Onions are basically one of the most frequently used root vegetables consumed by humans. They are high in fibre, vitamin C and antioxidants(i.e. Are compounds that can protect the cells oxidative damage and help prevent disease). Research shows that eating onions may be associated with a wide array of health benefits.
For instance, one study found that eating 3.5 ounces (100grams) of raw onions per day significantly reduced blood sugar levels in people with diabetes
What's more, other research observed that onions may possess powerful anticancer properties, which observed studies linking a higher intake of this root vegetable to lower risk of common types of cancer.
Onions work well in a variety of meals and can easily be added to meals like: Soups, Rice, Egg and many more.
Onions belong to the Alium family of plants, which also includes chives, garlic, and leeks. These vegetables have characteristic pungent flavors and some medical properties.
Onions vary in size, shape, color, and flavor. The most common typess are red, yellow and white onions. The taste of these vegetables can range from sweet to juicy to sharp, spicy, and pungent, often depending on the season in which people grow and consume them. It is common knowledge that eating onions causes watery eyes. However, onions may also provide potential health benefits. These may include reducing the risk of several types of cancer, improving mood, and maintaining skin and hair health.

Benefits

    Onions might have positive effects on several different aspects of health. this includes the following:

Cancer prevention

    Researchers have examined allium vegetables extensively in relation to cancer, especially stomach and colorectal cancer.
The researchers found that the risk of coloretal cancer was 79% lower in those who regularly consumed allium vegetables, such as onions. One cup of chopped onions also provides atleast 13.11% of an adult's recommended daily intake opf vitamin C. As an antiodant, this vitamin helps counter the formation of free radical compounds that have links to cancer.
Further research is neccessary to confirm which compounds in onion have protective effects against cancer.

Blood pressure moderation

     It was founded that quercetin, a compound in onion skin, had links to lower blood pressure when the researchers extracted it and adminstered it as a supplement.

Skin and Hair

     It was founded that quercetin, a compound in onions may support the building and maintainance of Collagen

Blood pressure moderation

     It was founded that quercetin, a compound in onion skin, had links to lower blood pressure when the researchers extracted it and adminstered it as a supplement.

Nutrition

     Onions are a nutrient-dense food, meaning that they are high in vitamins, minerals, and antioxidants while being low in calories

One cup of chopped onion provides: 1. 64 calories,    2. 14.9gram (g) of carbohydrate,    3. 0.16g of fat,    4. 0g of cholesterol,    5. 2.72g of fiber,    6. 6.78g o9f sugar,    7. 1.76g of protein