Onions, like garlic belong to the Allium family.
They are a hardy, healthly vegetable which is a great addition to your diet & can be used to add flavour to meals.
The colour of the onion gives an indication to its characteristics.
White onions are the strongest, followed by yellow, and red or the purple having the mildest flavour.

Choose onions that are clean, well shaped, very firm to pressure with no discolouration of the skin.
There should be no openings at the top or sprouting
Avoid onions with soft spots or dark patches.

Source of Potassium, Calcium, Vitamin C & Folate.
Provides 166kj / 100g.

Onions should be kept in a cool, dry open space away from bright light.
Your onions will keep better if stored in an area that allows for air circulation.
Onions will absorb moisture, so do not store onions below the sink. 
Do not place onions near potatoes because potatoes give off moisture and produce a gas that causes onions to spoil sooner.
If stored properly your onions should last a couple of weeks.

If your eyes tend to water while cutting onions, try chilling them first then peeling them under running water.

WA - Outer Metropolitan Areas, South West, Baldivis, Canarvon, Ord River.