Fats

Chemistry of Fats

Fats belong to a large group called Lipids which includes Triglycerides, Phospholipids and Sterols.

Differences between Fats and Oils

1) Fats are solid at room temperature, while oils are liquid.

2) Fats give food a different texture compared to oils.

3) Fats usually come from animals and oils usually from plants.

4) Fats are usually churned, while oils are usually pressed.

Functions of Fats in the body

1) Gives the body energy.

2) Protects your organs.

3) Supports cell growth.

4) Insulates the body.

5) Keeps cholesterol and blood pressure under control.

Plant Sources of Fats

Maize, Soya, Peanuts, Almonds and Walnuts.

Animal Sources of Fats

Mackerel, Butter, Cod, Salmon and Egg yolk.

Difference between Visible and Invisible Fats

Most visible fats are from animal sources while most invisible fats are from plant sources.

Visible Fat Sources

Butter, Margerine, Lard, Suet and Fat on Meat.

Invisible Fat Sources

Egg yolk, Nuts, Seeds, Flesh of oily fish and Cakes.

Difference between Saturated and Unsaturated Fatty Acids

Saturated fatty acids have all carbon atoms saturated with hydrogen while unsaturated fatty acids are not completely saturated.

Saturated Fatty Acid Sources

1) Butryric Acid (Butter)

2) Palmitic Acid (Animal fat)

3) Stearic Acid (Beef fat)

Unsaturated Fatty Acid Sources

1) Oleic Acid (Olive oil)

2) Linolenic Acid (Soy bean oil)

3) Linoleic Acid (Canola oil)

What are Essential Fatty Acids

Fatty acids the body needs but cannot make itself.

Essential Fatty Acid Sources

Mackerel, Walnuts and Palm oil.