Onion

Health benefits of Onions

 

Onions are very low in calories (just 40 calories per 100 g) and fats; however, rich in soluble dietary fiber.
Phyto-chemical compounds allium and Allyl disulphide in the onions convert into allicin by enzymatic reaction when its modified leaves are distorted (crushing, cutting, etc.). Studies have shown that these compounds have anti-mutagenic (protects from cancers) and anti-diabetic properties (helps lower blood sugar levels in diabetics).
Laboratory studies show that allicin reduces cholesterol production by inhibiting the HMG-CoA reductaseenzyme in the liver cells. Further, it also found to have anti-bacterial, anti-viral, and anti-fungal activities.
In addition, Allicin also decreases blood vessel stiffness by releasing nitric oxide (NO) and thereby bring a reduction in the total blood pressure. Further, it blocks platelet-clot formation, and has fibrinolytic action in the blood vessels. Altogether, it helps decrease in overall risk of coronary artery disease (CAD), peripheral vascular diseases (PVD), and stroke.
Onions are rich source of chromium, the trace mineral that helps tissue cells respond appropriately to insulin levels in the blood. It thus helps facilitate insulin action and control sugar levels in diabetes.
They are an also good source of antioxidant flavonoid quercetin, which is found to have anti-carcinogenic, anti-inflammatory, and anti-diabetic functions. 
They are also good in antioxidant vitamin, vitamin-C and mineral manganese. Manganese is required as a co-factor for anti-oxidant enzyme, superoxide dismutase. In addition, isothiocyanate anti-oxidants in them help provide relief from cold and flu by exerting anti-inflammatory actions.
Onions are also good in B-complex group of vitamins like pantothenic acid, pyridoxine, folates and thiamin. Pyridoxine or vitamin B-6 helps keep up GABA levels in the brain, which works against neurotic conditions.

 

Safety profile

 

Raw onions can cause irritation to skin, mucus membranes and eyes. This is due to release of allyl sulphidegas while chopping or slicing them. The gas when mixed with moisture (water), converts into sulfuric acid. Allyl sulphide is concentrated more at the ends, especially at its root end. Its effect can be minimized by immersing the trimmed bulb in cold water for few minutes before you chop or slice it. 

 

Disclaimer

 

The information and reference guides in this website are intended solely for the general information for the reader. The contents of this web site are not intended to offer personal medical advice, diagnose health problems or for treatment purposes. It is not a substitute for medical care provided by a licensed and qualified health professional. Please consult your health care provider for any advice on medications.