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How Fat Is Useful For Human Body?
Like the starches and sugar fats supply fuel for the body heat, and serve as a source for the expenditure of energy. As fuel, fats differ from starches and sugar in that while the latter substances may be termed quick burning fuels, fats instead of being burned at once, are for future use in the form of depose tissue, sometimes known as residual or reserve tissue. As heat producer fats have double the value of starches and sugar but fats are more difficult of absorption.
The principal foods rich in fats are butter, cream, animal fat, olive oil, cod-liver oil, and oil of nuts.
An excessive amount of fats tends to cause digestive disturbances, derangement of the biliary function and acidosis. Whereas great excess of fat is highly detrimental to health and prejudicial to longevity. In a normal diet about 3 to 4 ozs. of fats are required daily.
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