
If a person eats half of raw onion every day, the good HDL will goes up 30%. Onions increase blood circulation and good for reducing blood pressure. Onion usually refers to Allium cepa. Allium cepa is one of the oldest vegetable known. It’s a large family containing 500 species.
It has been used as a food source for millennia. Onion is a native to South Asia and is widely used in Indian cooking.
Most researches agreed that the onion has been cultivated for 5000 years. It grew in Chinese gardens as early as that time.
Apart from using as a currency to pay the workers who built the pyramids, Ancient Egypt 3500 B.C worshipped the onion and believed that its spherical shape symbolized the eternal life. Painting of onions appears on the walls of the pyramids and in tombs of both the old Kingdom and the new Kingdom.
In middle ages, onion became one of European three main cuisines (beans, cabbage and onion). It was the Roma who introduced the onion to Europe. The Latin name unio was to describe a species of onion resembling a single white pearl. At that time, in American native was using wild onions in syrups, in dyes even in toys. They also ate as a raw.
History of Onion