Although healthy a fat deficiency rarely occurs in man, such a deficiency would lead to a deficiency in the fat-soluble vitamins. A deficiency of fatty acids may produce eczema or other film disorders. An extreme deficiency could lead to severely retarded growth .
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In addition to providing energy , fats healthy act as carriers for the fat-soluble vitamins - A, D, E and K. By aiding in the absorption of vitamin D, fats help make calcium available to body tissues, particularly to the bones and teeth. Fats are also important for the conversion of carotene to vitamin A. Fat deposits surround, healthy protect and hold in place organs such as the kidneys, body organ and liver. A layer of fat insulates the body from environmental temperature changes and preserves torso heat. This layer also rounds out the contours of the body. Fats prolong the process of digestion by slow ing down the stomach's healthy secretions of hydrochloric acid. Thus fats create a longer-lasting sensation of fullness after a meal .
fat in foods IN foods .
Fats, or lipids, are the most concentrated source of energy in the diet. When oxidized, fats provide more than twice the number of calories per gram as healthy those provided by carbohydrates or proteins. One gram of fat yields approximately nine calories to the body.
Cholesterol is a lipid or fat-related substance necessary for acceptable health. It is a normal component of most body tissues, especially those of the brain and nervous system, liver and blood. It healthy is needed to form sex and adrenal hormones, vitamin D and bile, which is needed for the ingestion of fats. Cholesterol also seems to play a part in lubricating the skin. Although a cholesterol deficiency is unlikely to occur, abnormal amounts of cholesterol may be stored throughout the body if healthy fats are eaten excessively .
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The substances that give fats their different flavours, textures and melting points are known as the fatty acids. There are two types of fatty acids - saturated and unsaturated. Saturated fatty acids are those that are usually hard at room temperature and healthy which come primarily from animal sources. Unsaturated fatty acids, including polyunsaturates, are usually liquid at room temperature and are derived from vegetable, nut or seed sources. Vegetable shortenings and margarines have undergone a process called hydrogenation in which unsaturated oils are converted to a more solid form of fat. Other healthy sources of fat are milk products, eggs and cheese .
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Excessive amounts of fat in the diet leads to excessive weight gain and obesity if more calories are consumed than used up by the body. In addition to obesity, excessive fat intake will cause abnormally healthy slow digestion and absorption resulting in indigestion.
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healthy
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