Onions have been hard to date by archaeologists, but it’s generally thought that onions have been eaten since prehistoric times and have been cultivated for at least 5000 years. Onions grew wild and were indigenous to many parts of the world.
As well as being a valuable food crop, onions have been used in herbal medicines for many centuries. A common preparation, still used today to soothe cough and cold symptoms;
Slice an onion and place in a small bowl with a little sugar. Cover and leave overnight. The resulting liquid should be sipped first thing in the morning.
Onions have been proved to balance insulin levels, therefore reducing blood pressure. They are one of the few vegetables that can significantly reduce the risk of heart disease through lowering cholesterol and high blood pressure.
Onions are also a good source of B vitamins, vitamin C and dietary fibre and there are only 40 calories in 100 grams (3.5 ounces) of onions.
Download this step by step guide to growing onions at home.
How to Grow Onions (updated edition)
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