Eggs are a very good source of inexpensive, high quality protein. More than half the protein of an egg is found in the egg white along with vitamin B2 and lower amounts of fat and cholesterol than the yolk.
The whites are rich sources of selenium, vitamin D, B6, B12 and minerals such as zinc, iron and copper. Egg yolks contain more calories and fat. They are the source of cholesterol, fat soluble vitamins A, D, E and K and lecithin - the compound that enables emulsification in recipes such as hollandaise or mayonnaise.
Some brands of egg now contain omega-3 fatty acids, depending on what the chickens have been fed (always check the box). Eggs are regarded a 'complete' source of protein as they contain all eight essential amino acids; the ones we cannot synthesise in our bodies and must obtain from our diet.For years eggs have been considered more of a health risk than a healthy food. Since they are high in cholesterol, it was recommended that people with high cholesterol levels avoid eggs. But it turns out the cholesterol content for which they have been vilified is much lower than it was 10 years ago. This reduction has been attributed to the changes in hen feed since the BSE crisis in the 1990s. British research shows that a medium egg contains about 100mg of cholesterol, a third of the 300mg recommended daily limit. Also it is saturated fat in the diet, not dietary cholesterol that influences blood cholesterol levels the most.
If you are concerned about your cholesterol or are unsure whether it is safe for you to consume eggs please consult your GP.
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