Lipids

Lipids are a group of biological macro-molecules that include fats, phospholipids and steroids. Because they are hydrophobic (also known as lipophilic; insoluble in water), they constitute a very important component of cell membranes, cell signalling, mechanical support (as adipose tissue), thermal insulation and energy storage (as fats).

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This word is sometimes used in advertising to avoid the word "fats", in the (probably accurate) belief that a beauty product's target audience will have failed science at school.


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