unsaturated fat


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fat

 [fat]
1. the adipose tissue of the body.
2. a triglyceride (or triacylglycerol) that is an ester of fatty acids and glycerol. Each fat molecule contains one glycerol residue connected by ester linkages to three fatty acid residues, which may be the same or different. The fatty acids may have no double bonds in the carbon chain (saturated fatty acids), one double bond (monounsaturated), or two or more double bonds (polyunsaturated). Essential fatty acids cannot be synthesized by the body but must be obtained from the diet or from intravenous infusion of lipids.
Saturated and Unsaturated Fats. All of the common unsaturated fatty acids are liquid (oils) at room temperature. Through the process of hydrogenation, hydrogen can be incorporated into certain unsaturated fatty acids so that they are converted into solid fats for cooking purposes. Margarine is an example of the hydrogenation of unsaturated fatty acids into a solid substance.
brown fat a thermogenic type of adipose tissue containing a dark pigment, and arising during embryonic life in certain specific areas in many mammals, including humans (see illustration); it is prominent in the newborn. Called also brown adipose tissue.
Sites of brown fat in the neonate. From McKinney et al., 2000.
neutral fat fat (def. 2).
polyunsaturated fat a fat containing polyunsaturated fatty acids; see also fat.
saturated fat a fat containing saturated fatty acids; see also fat.
unsaturated fat a fat containing unsaturated fatty acids; see also fat.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

un·sat·ur·at·ed fat·ty ac·id

a fatty acid, the carbon chain of which possesses one or more double or triple bonds (for example, oleic acid, with one double bond in the molecule, and linoleic acid, with two); called unsaturated because it is capable of absorbing additional hydrogen.
Farlex Partner Medical Dictionary © Farlex 2012

unsaturated fat

n.
Any of various fats derived from plant and some animal sources, especially fish, that are liquid at room temperature. Increasing dietary intake of unsaturated fats while reducing intake of saturated fats can reduce LDL cholesterol in the bloodstream.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

unsaturated fat

An alkyl-chain fatty acid with one or more double (ethylenic) bonds between carbons (called unsaturated as the chain is capable of absorbing more hydrogen). Unsaturated fats  (UFs) have lower melting points, and most are liquid at room temperature. UFs can be monounsaturated (i.e., have one double bond, such as oleic acid), which are widely distributed in nature, or polyunsaturated (i.e., has two or more double bonds, such as linolenic acid), which are found in safflower and corn oils.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

un·sat·ur·at·ed fat

(ŭn-sach'ŭr-āt-ĕd fat)
Fat containing a high proportion of unsaturated fatty acids, i.e., fatty acids with double or triple bonds between carbon atoms. May have a healthy effect on the heart when used in moderation by lowering cholesterol levels.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

unsaturated fat

see FATTY ACID.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
What to do: Replace saturated with unsaturated fats, and eat less sugar.
This is why getting a lot of antioxidants in your foods and supplements are so important if your diet is high in unsaturated fats. Saturated fats, on the other hand, remain stable much longer.
Although the ratio of [w.sub.6] to [w.sub.3] is of low amount, it is not significant in comparison to unsaturated fat acid.
That leaves 500 calories, or 55 grams, to be consumed as unsaturated fat at the 2,000 calorie-per-day level.
The amount of unsaturated fat in a diet should also not be excessive.
Dietician Malin Haglund Garemo said: "Every third child in the study ate far too little unsaturated fat, above all, too little omega-3.
The higher unsaturated fat diet also further decreased blood pressure and triglycerides but did not decrease LDL cholesterol.
Appel and his associates to compare a carbohydrate-rich diet similar to the DASH diet with two investigational modifications: one boosted protein levels, especially plant protein, while reducing carbohydrates, and the other increased unsaturated fat, especially monounsaturated fat, while also reducing carbohydrates.
Monounsaturated and polyunsaturated fats are both types of unsaturated fat.
Whole oat flour, which imparts a sweet flavor to bread, is high in water-soluble fiber and nutrients (but also higher in sodium and unsaturated fat than most grains).
ISLAMABAD -- An analysis of data from dozens of studies reveals that replacing saturated fat in the diet with unsaturated fat reduces low-density lipoprotein cholesterol.
[USA] Sep 6 (ANI): Turns out, food high in unsaturated fat may protect against cardiovascular diseases.