Fats are required in the diet as they provide the structural components of the cell walls of all tissues. They also act as carriers for the soluble vitamins A, D, E and K. Whilst an excess of saturated fat in the diet can lead to raised cholestrol levels and heart-related diseases, poly unsaturated fats can actually lower cholestrol levels. Some oils contain essential fatty acids, a deficiancy of which can lead to heart disease, acne and eczema. Mono unsaturates have actually been found to reduce cholestrol levels.
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