News tagged with trans fats
A 98-year-old researcher argues that, contrary to decades of clinical assumptions and advice to patients, dietary cholesterol is good for your heart – unless that cholesterol is unnaturally oxidized (by ...
Cardiology Feb 27, 2013 | 5 / 5 (8) | 0
Not all trans fats are created equal and it's time for a change in nutrition labels in North America to reflect this, particularly when it comes to dairy and beef products.
Health Sep 07, 2011 | 5 / 5 (3) | 0
It has been known for years that eating too many foods containing "bad" fats, such as saturated fats or trans fats, isn't healthy for your heart. However, according to new research from Brigham and Women's Hospital (BWH), ...
Neuroscience May 18, 2012 | 5 / 5 (3) | 4 |
(PhysOrg.com) -- In recent years a fierce debate has raged among nutrition experts over the wisdom of prevailing dietary guidelines that emphasize eating less saturated fat. Two experts from the UNC Department of Nutrition ...
Health May 11, 2011 | 2.8 / 5 (5) | 0
Might the "Twinkie defense" have a scientific foundation after all? Researchers at the University of California, San Diego School of Medicine have shown by each of a range of measures, in men and women of all ages, ...
Health Mar 13, 2012 | 3.5 / 5 (4) | 5 |
There is much confusion at present about the importance of fatty acids in preventing heart attacks. Recent studies have questioned the need to reduce the intake of saturated fatty acids in the diet and to increase that of ...
Health Jun 30, 2011 | 4.3 / 5 (3) | 0 |
(HealthDay) -- New York City's restriction on the use of trans fats in foods served at restaurants is helping Big Apple residents cut down on the unhealthy fat, a new study shows.
Health Jul 16, 2012 | 3.7 / 5 (3) | 4 |
Universities need to work with industry to develop realistic solutions to harmonize food systems with human health, according to panelists at a Morrison Hall symposium on Oct. 28.
Health Nov 02, 2011 | 5 / 5 (1) | 0
Older women whose diets include a substantial amount of trans fats are more likely than their counterparts to suffer an ischemic stroke, a new study shows.
Neuroscience Mar 01, 2012 | 5 / 5 (1) | 0 |
(Medical Xpress)—Banning the use of trans fats in the preparation of foodstuffs is one of the most effective ways to prevent some of the world's biggest killer diseases, but many governments are not taking ...
Health Apr 04, 2013 | 5 / 5 (1) | 0 |
Trans fat is the common name for a type of unsaturated fat with trans-isomer fatty acid(s). Trans fats may be monounsaturated or polyunsaturated but never saturated.
Unsaturated fat is a fat molecule, containing one or more double bonds between the carbon atoms. Since the carbons are double-bonded to each other, there are fewer bonds available for hydrogen, so there are fewer hydrogen atoms, hence "unsaturated". Cis and trans are terms that refer to the arrangement of chains of carbon atoms across the double bond. In the cis arrangement, the chains are on the same side of the double bond, resulting in a kinked geometry. In the trans arrangement, the chains are on opposite sides of the double bond, and the chain is straight overall.
The process of hydrogenation is intended to add hydrogen atoms to cis-unsaturated fats, eliminating a double bond and making them more saturated. These saturated fats have a higher melting point, which makes them attractive for baking and extends their shelf-life. However, the process frequently has a side effect that turns some cis-isomers into trans-unsaturated fats instead of hydrogenating them completely.
There is another class of trans fats, vaccenic acid, which occurs naturally in trace amounts in meat and dairy products from ruminants.
Unlike other dietary fats, trans fats are not essential, and they do not promote good health. The consumption of trans fats increases one's risk of coronary heart disease by raising levels of "bad" LDL cholesterol and lowering levels of "good" HDL cholesterol. Health authorities worldwide recommend that consumption of trans fat be reduced to trace amounts. Trans fats from partially hydrogenated oils are more harmful than naturally occurring oils.
For more information about Trans fat, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.