Unsaturated fat
hideAn unsaturated fat is a fat or fatty acid in which there are one or more double bonds in the fatty acid chain. A fat molecule is monounsaturated if it contains one double bond, and polyunsaturated if it contains more than one double bond. Where double bonds are formed, hydrogen atoms are eliminated. Thus, a saturated fat is "saturated" with hydrogen atoms. In cellular metabolism hydrogen-carbon bonds are broken down – or oxidized – to produce energy, thus an unsaturated fat molecule contains somewhat less energy (i.e fewer calories) than a comparable sized saturated fat. The greater the degree of unsaturation in a fatty acid (ie, the more double bonds in the fatty acid), the more vulnerable it is to lipid peroxidation (rancidity). Antioxidants can protect unsaturated fat from lipid peroxidation. Unsaturated fats also have a more enlarged shape than saturated fats.[citation needed]
For more information about Unsaturated fat, read the full article at
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News tagged with dietary fats
Two dietary oils, two sets of benefits for older women with diabetes
Jul 07, 2009 |
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A study comparing how two common dietary oil supplements affect body composition suggests that both oils, by themselves, can lower body fat in obese postmenopausal women with Type 2 diabetes.
Dietary fat linked to pancreatic cancer
Jun 26, 2009 |
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High intake of dietary fats from red meat and dairy products was associated with an increased risk of pancreatic cancer, according to a new study published online June 26 in the Journal of the National Cancer Institute.
Fatty foods fire up hunger hormone
Jun 06, 2009 |
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New research led by the University of Cincinnati (UC) suggests that the hunger hormone ghrelin is activated by fats from the foods we eat—not those made in the body—in order to optimize nutrient metabolism and promote the ...
Dietary fats trigger long-term memory formation
Apr 27, 2009 |
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Having strong memories of that rich, delicious dessert you ate last night? If so, you shouldn't feel like a glutton. It's only natural.
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Etiologic factors of gastric cardiac adenocarcinoma among men in Taiwan
Nov 25, 2009 |
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The gastric cardiac adenocarcinoma (GCA) is a very rare disease. In recent decades, however, the incidence of the GCA has increased dramatically in many Western countries. An increasing trend in GCA is also observed in municipal ...
High salt intake directly linked to stroke and cardiovascular disease
Nov 24, 2009 |
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High salt intake is associated with significantly greater risk of both stroke and cardiovascular disease, concludes a study published in the BMJ today.
Fish food fight: Fish don't eat trees after all, says new study
Nov 24, 2009 |
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(PhysOrg.com) -- What constitutes fish food is a matter of debate. A high-profile study a few years ago suggested that fish get almost 50 percent of their carbon from trees and leaves, evidence for a very ...
Abnormal cholesterol levels may raise risk of heart failure
Nov 23, 2009 |
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(PhysOrg.com) -- Even if you never have a heart attack, abnormal blood cholesterol levels may significantly raise your risk of heart failure, according to research reported in Circulation: Journal of the American Heart As ...
Flaxseed oil and osteoporosis
Nov 23, 2009 |
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Animal studies suggest that adding flaxseed oil to the diet could reduce the risk of osteoporosis in post-menopausal women and women with diabetes, according to a report to be published in the International Journal of Fo ...
Don't Blame Tryptophan for Thanksgiving Snooze
Nov 20, 2009 |
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(PhysOrg.com) -- Blame it on the heavy meal, the alcohol, or simply the opportunity afforded by a free afternoon on a traditional holiday. Just don't blame it on the tryptophan, say experts at the University ...
How to execute dietary management in eating disorder patients
Nov 19, 2009 |
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Substances that provoke gastrointestinal symptoms in patients with eating disorders (ED) can impact negatively on their nutritional rehabilitation. An Australian research group has found that ingestion of fructose-sorbitol ...
Don't add an ER visit to your holiday plans
Nov 18, 2009 |
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(PhysOrg.com) -- UNC emergency physician Abhi Mehrotra, M.D., explains how you can avoid the most common injuries that land people in a hospital emergency department during the four-day Thanksgiving holiday period.
Scientists find molecular trigger that helps prevent aging and disease
Nov 18, 2009 |
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Researchers at Mount Sinai School of Medicine set out to address a question that has been challenging scientists for years: How do dietary restriction—and the reverse, overconsumption—produce protective effects against aging ...
Family partnership, education interventions lower heart failure patients' salt consumption
Nov 17, 2009 |
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Educating family members of heart failure (HF) patients about the health benefits of consuming a low-salt diet and providing skills for support and communication can effectively reduce HF patients' sodium consumption, according ...
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