10 Health Benefits and Nutritional Value of Onion

We often find onions in a variety of dishes, but did you know the benefits and nutritional content of onions? Onions have a characteristic that is rich in thiosulfinat, sulfide, sulfur oxides and other sulfur-smelling mixture. Custeine ​​Sulfur Oxides which was instrumental in the onion flavor and produce substances that make pain in the eyes. Thiosulfinates produce anti-bacterial substance. Onion is effective against many bacteria including: Bacillus subtilis, Salmonella, and E. coli. Onions garlic is not as hard as her sulfur content is approximately a quarter rather than garlic.

Onions have a variety of benefits of treatment. The earliest inhabitants of the Americas, using wild onions to treat colds, coughs, and asthma, and to repel insects. In Chinese medicine, onions have been used to treat sore throats, coughs, bacterial infections and respiratory problems.

The World Health Organization (WHO) supports the use of onions to improve poor appetite and prevent constriction of blood vessels. In addition, onion extracts are recognized by WHO for help treat coughs and colds, asthma and bronchitis. Onions are known to reduce airway spasms. An onion extract is known to reduce shortness of breath due to allergic asthma patients.

Onion nutritional value

Onions are a very rich source of frukto-oligosaccharides. These oligomers stimulate the growth of healthy bacteria bifidobacteria and suppress the growth of harmful bacteria in the large intestine. In addition, they can reduce the risk of tumors developing in the colon. The highest onion nutrition is vitamin C, which reach 12% of our RDA. Onion also contain several other vitamins and minerals that you can read below.

Onoin (Allium cepa),  raw,
Nutrition value per 100 g.
(Source: USDA National Nutrient data base)
PrincipleNutrient ValuePercentage of RDA
Energy40 Kcal2%
Carbohydrates9.34 g7%
Protein1.10 g2%
Total Fat0.10 g0.5%
Cholesterol0 mg0%
Dietary Fiber1.7 g4.5%
Folates19 µg5%
Niacin0.116 mg1%
Pantothenic acid0.123 mg2.5%
Pyridoxine0.120 mg9%
Riboflavin0.027 mg2%
Thiamin0.046 mg4%
Vitamin A2 IU0%
Vitamin C7.4 mg12%
Vitamin E0.02 mg0%
Sodium4 mg0%
Potassium146 mg3%
Calcium23 mg2%
Copper0.039 mg4%
Iron0.0.21 mg3%
Magnesium10 mg2.5%
Manganese0.129 mg5.5%
Phosphorus29 mg4%
Zinc0.17 mg 1.5%
Carotene-beta1 µg--
Cryptoxanthin-beta0 µg--
Lutein-zeaxanthin4 µg--

10 amazing onion health benefits

  1. Against cancer. Onions are rich in sulfide compounds, are efficacious protects body cells against tumor growth.

  2. Controlling blood glucose levels. Eating onions can help reduce blood glucose levels. Onions contain allyl-propyl-disulfide and chromium that helps increase the production of insulin. Insulin is a hormone that helps the body's absorption of glucose by the cells.

  3. Prevent blood clots. Onions contain anti-clotting substance. The content of sulfur in onions efficacious to prevent blood clots.

  4. Helps digestive system. Onions contain dietary fiber that helps digestion. Onions also contain a prebiotic that encourages the growth of beneficial bacteria (probiotics) in the digestive system that helps the digestive function.

  5. Protect against allergies. Onions are rich in quercetin, an antioxidant that is known to have anti-inflammatory and anti-allergic.

  6. Maintain brain health. Onions contain a lot of vitamin B complex such as pantothenic acid, pyridoxine, folate and thiamin which is an important nutrient for the brain and play a role in preventing neurological disorders.

  7. Strengthen bones. Onions contain several important nutrients that maintain bone density in the form of minerals like copper, calcium, magnesium, and phosphorus.

  8. Strengthen network connector. Sulfur contained in onions useful in the formation of connective tissue.

  9. Strengthen immunity. Onions are rich in antioxidants such as vitamin C, quercetin, and manganese minerals are highly efficacious in curing fever and influenza.

  10. Reduce risk of hypertension. Onions contain a substance called allicin, which maintain the flexibility of blood vessels to maintain blood pressure remains normal.

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