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Onion is the only kind of food that can make you cry when you cut into it. However, it still becomes popular ingredient in culinary for its variety of uses such as raw, baked, boiled, fried, roasted and so on.
Onion is a vegetable first cultivated in Asia as the earliest cultivated crops. There are many types of onion that are different in color, size and taste but the most common one is red, yellow and white onion. More than an ingredient in culinary, onion contains several nutrients such as vitamin A, B6, C, E, natural sugar, minerals like potassium, iron, sodium, etc. Besides, it is also rich in folic acid. For its great content of valuable substances, onion has been used for medical purpose since ancient time, for instance, to prevent cholera and plague and treat colds. Nowadays, studies have found more and more great benefits that you can get from this vegetable, from improving the mood to beauty treatments or maintaining overall health.
Let look closely at what benefits you can get from onions.
1. Heart health
One of the greatest effects that onion has is improving heart health. Specifically, it helps to lower blood pressure and reduce the risk of heart attack since the sulfur in onion function to protect blood platelets against aggregating, leading to a significant reduction in the risk of heart attack or stroke.
Additionally, onion also inhibits the buildup of plaque in the arteries, which is beneficial for the heart.
Add onion into your daily diet as a good way to protect your heart.
For more information of natural remedies to protect your heart, read more How to Prevent Heart Disease.
2. Anti-inflammation
Unlike the effect on heart of onion, which needs more research to prove on human, onion has been confirmed in worldwide studies to have the ability of anti-inflammatory. According to those, quercetin in onion acts to ease the airway muscles and get rid of symptoms of asthma.
3. Immunity
By consuming onion, you can be free from worrying about radicals thanks to the antioxidants in it. Specifically, onion can eradicate free radicals, giving a boost to immune system. Also, onion inhibits the production of histamines inside the body, which causes allergic reactions with the symptoms of sneezing, itching, etc.
4. Cancer
According to the University of Maryland Medical Center, quercetin found in onion is a strong anti-cancer agent, which is able to eliminate cells of various cancer types such as breast, prostate, colon, lung tumors, etc.
Red onion is highly recommended for your daily diet due to its richest content of quercetin and other antioxidants among others.
5. Digestion
Another use of onion is to enhance digestion. The type of soluble fiber in onion called oligofructose has the ability to encourage the growth of good bacteria in the intestines. This enables people to use onion in diarrhea prevention and treatment. Not only that, onion also contains another substance known as phytochemicals, which protects you against gastric ulcers.
6. Blood sugar regulation
By regularly using onion, you are helping yourself to adjust the sugar levels in blood and prevent diabetes. This is due to the chromium and the sulfur in the vegetable. The insulin production will be considerably improved thanks to onion. This effect has been confirmed in several studies for both type 1 and type 2 diabetes.
7. Bone density
For women who are facing or already overcome the menopause period, onion is extremely good for improving bone density. The rate of hip fracture has droped by 20% for women who start to consume onion regularly. 
8. Mood
Not only is onion good for health but it is also beneficial for your mood. By limiting the excessive homocysteine production in the body, a substance in onion called folate enable blood and other nutrients to reach the brain easier. This helps a lot with your mood as it can release you from depression. In addition, you sleep quality and appetites are also regulated.
9. Beauty treatment
For ages, onion is considered as an effective remedy for skin and hair. Not only treating common problems of skin and hair, the vitamin C in onion is essential for the forming and maintenance of collagen in these parts. This ingredient helps improve structure of skin and hair.
For more natural treatments to improve your appearance, find out at Home Remedies for Fair Skin and How to Grow Hair Faster.
10. Scabies
Onion has always been a great natural companion on the way treating scabies thanks to a substance called quercetin presetting in it. Besides, the organosulfur compounds on onion makes the process of healing faster.
For the process of remedy appliance, read more at Home Remedies for Scabies.
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