Let’s Get Cracking

Under Family Category: Family Health

Picture of Humble Egg ImageWe unscramble misconceptions surrounding the humble egg.
Remember when Sunday night tea was whatever you liked, as long as it could , be boiled, poached, scrambled or fried. But over the past few decades, people’s love affair with eggs has gone off the boil.

In the 1940s, we’d happily get through five eggs each a week, but this has now dropped to just over two and a half. In the 1970s, cracks appeared in their reputation, owing to the cholesterol contained in the yolk.
But now, our understanding of cholesterol and dietary fats has changed, and eggs have been restored as a healthy, nutritious source of protein and vitamins.
Following is a round-up of facts on the humble egg, which has been eaten by humans for as long as we have foraged and hunted for food.

What’s In An Egg?
Wrapped up in one 59g egg are almost all the essential nutrients we need for health. Dr Irene Gorman of the Australian Egg Corporation Ltd says that apart from vitamin C, eggs contain all the vitamins, minerals and proteins we require.
“It’s the most nutritionally balanced single food we have. It has everything but vitamin C.” And most of the fat in an egg is made up of the healthy kinds of fats, the polyunsaturates and mono- unsaturates.

Nearly all the protein is in the white, and most of the fats and fat-soluble vitamins are in the yolk. A 59g egg provides you with 305 kilojoules, 6g of protein and 5g of fat.

Storage Tips
From the moment an egg is laid until the end of its use-by-date is five weeks. Eggs should be refrigerated in their carton, rather than placed in the fridge door. This protects them from being cracked and insulates against moisture loss from the shell, which helps keep them fresher. Being stored in their carton also prevents the porous shell from absorbing the flavours of other foods. Throw out cracked eggs as this is how bacteria gets in.

How Many Can We Eat?
It used to be thought eating the cholesterol in eggs raised our own blood cholesterol levels. But nutritionist Dianne Woods says it’s now known this isn’t true for most people.
“Research has shown it is the level of saturated fats in the diet that is responsible for most of the cholesterol in blood, rather than the level of the cholesterol we eat,” says Woods, the executive officer of Nutrition Australia NSW.

As a result, you can happily eat one egg a day if you don’t have high blood cholesterol and your diet is fairly low in fat.
“They are a good source of protein, especially for younger or older eaters,” Woods says. “Many kids are put off eating meat as there is a lot of chewing involved, but they’ll eat eggs.”

Do They Differ?
There are organic, vegetarian and omega-3 enriched eggs, as well as free-range, barn-laid and cage-laid eggs. Overall, the nutritional content of most eggs is similar, Dr Gorman says, apart from the omega-3 enriched eggs, which have come from hens given a particular feed to produce eggs with more omega-3 fats than ordinary eggs. Vegetarian eggs come from hens given feed that doesn’t contain meat. Organic eggs come from free-range hens fed organic grain. Around 90 per cent of the eggs we buy come from hens kept in cages.

What About Salmonella?
Salmonella is a word often raised in association with eggs and food safety. But Dr Gorman assures us that eggs in Australia are only very, very rarely contaminated. In other countries, salmonella can infect eggs while they are being formed in the hen, but this does not happen in Australia. The only way they can be contaminated is by bacteria passing through the shell, the membrane and the white, then into the yolk. But as a precaution, eggs should be well-cooked for children and those with compromised immune systems, such as people undergoing chemotherapy.

1 person has left a comment

Very informative and clearly presented.
Great Post

Bubbles wrote on November 28, 2007 - 10:47 pm | Visit Link

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