Eggs
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7.1
Introduction
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Eggs
are a highly nutritious food as they contain lots of
vitamins and minerals in relation to the amount of energy
(calories) they provide. Of the high quality protein
foods (meat, fish and milk) eggs contain the highest
quality protein. |
7.2 Eggs and cholesterol |
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Eggs
contain around 250 to 300 mg of cholesterol per yolk.
Expert bodies like the National Health and Medical
Research Council (of Australia) and the National Heart
Foundation recommend an intake of cholesterol not
exceeding 300 mg per day.
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Quick
Questions
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Quick
Questions
1. The effect
of the cholesterol from an egg on blood cholesterol levels depends on
two factors.
What
are these two factors?

2. Why is the
cholesterol from a cheese omelette likely to be more harmful than the
cholesterol eaten from an asparagus omelette? 
Information
for question 1
(Adapted from Food
Questions & Answers)Cholesterol from an egg can affect blood cholesterol
levels in two waysFirst, there are individual differences in the way
people respond to certain foods. For example, some people are allergic
to nuts while most are not. Individuals who have high blood cholesterol
levels are more likely to show a greater increase for the same amount
of cholesterol in food than those whose blood cholesterol levels are
initially lower.Secondly, different food habits or patterns can also
influence the effect of egg consumption on blood cholesterol levels.
Individuals who eat eggs and have a diet that is high in saturated fat
are more likely to elevate their cholesterol levels than people who
eat eggs and have a diet that's low in saturated fat. For example, if
you ate bacon and egg, with toast that's been spread with butter for
breakfast most mornings you are more likely to elevate your blood cholesterol
levels compared with someone who eats tomatoes and egg with toast that's
been spread with Canola margarine.
Question
2
| Food |
Total
fat |
Saturated
fat |
| Egg
(one medium - 60 g) |
6g |
1.8g |
| Slice
of cheddar cheese (20g) |
6g
|
4.2g |
| Asparagus
(5 spears) |
0.05g |
Nil |
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