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Fats (Lipids)

Fats or lipids are the third major macronutrients required by the body. Much like carbohydrates, lipids are made up of carbon, hydrogen and oxygen. Fat is the most concentrated energy source, and while it has many functions within the body, one of its main duties is to transport, absorb and digest the fat soluble vitamins, A, D, E and K. Other functions include:

* To provide protective cushioning for the body's vital organs such as the heart and stomach

* To assist with insulation

* To supply the body with essential fatty acids

* To store energy

* To provide some source of fuel