what is OMEGA_3 fat?

this is connected with reduction of cholestrol

Answers:
Omega-3 is Essential to the Human Body


A Purdue University study has showed that kids low in Omega-3 essential fatty acids are significantly more likely to be hyperactive, have learning disorders, and to display behavioral problems. Omega-3 deficiencies have also been tied to many conditions, including the following:
dyslexia violence
depression memory problems
weight gain cancer
heart disease eczema
allergies inflammatory diseases
arthritis diabetes

Over 2,000 scientific studies have demonstrated the wide range of problems associated with Omega-3 deficiencies. The American diet is almost devoid of Omega 3's, except for certain types of fish.
In fact, researchers believe that about 60% of Americans are deficient in Omega-3 fatty acids, and about 20% have so little that test methods cannot even detect any in their blood.

The human brain is more than 60% structural fat, just as your muscles are made of protein and your bones are made of calcium. But it's not just any fat that our brains are made of. It has to be certain types of fats, and we no longer eat these types of fats like we used to.

Worse, we eat man-made trans-fats and excessive amounts of saturated fats and vegetable oils high in Omega-6 fatty acids, all of which interfere which our body's attempt to utilize the tiny amount of Omega-3 fats that it gets.

Other parts of our bodies also need Omega-3 fatty acids. Symptoms of fatty acid deficiency include a variety of skin problems such as eczema, thick patches of skin, and cracked heels.

You've probably been hearing about omega 3 fatty acids in recent years. The reason? A growing body of scientific research indicates that these healthy fats help prevent a wide range of medical problems, including cardiovascular disease, depression, asthma, and rheumatoid arthritis.

Unlike the saturated fats found in butter and lard, omega 3 fatty acids are polyunsaturated. In chemistry class, the terms "saturated" and "polyunsaturated" refer to the number of hydrogen atoms that are attached to the carbon chain of the fatty acid. In the kitchen, these terms take on a far more practical meaning.

Polyunsaturated fats, unlike saturated fats, are liquid at room temperature and remain liquid when refrigerated or frozen. Monounsaturated fats, found in olive oil, are liquid at room temperature, but harden when refrigerated. When eaten in appropriate amounts, each type of fat can contribute to health. However, the importance of omega 3 fatty acids in health promotion and disease prevention cannot be overstated.

The three most nutritionally important omega 3 fatty acids are alpha-linolenic acid, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).

Alpha-linolenic acid is one of two fatty acids traditionally classified as "essential." The other fatty acid traditionally viewed as essential is an omega 6 fat called linoleic acid. These fatty acids have traditionally been classified as "essential" because the body is unable to manufacture them on its own and because they play a fundamental role in several physiological functions. As a result, we must be sure our diet contains sufficient amounts of both alpha-linolenic acid and linoleic acid.

Dietary sources of alpha-linolenic acid include flaxseeds, pumpkin seeds, walnuts, hemp seeds, soybeans and some dark green leafy vegetables. Linoleic acid is found in high concentrations in corn oil, safflower oil, sunflower oil, and canola oil. Most people consume a much higher amount of linoleic acid than alpha-linolenic acid, which has important health consequences. For more information on the proper ratio of these fatty acids in the diet, see our FAQ entitled, A New Way of Looking at Proteins, Fats, and Carbohydrates

The body converts alpha-linolenic acid into two important omega 3 fats, eicosapentaenoic acid (EPA) and docosahexanoic acid (DHA). These fats can also be derived directly from certain foods, most notably cold-water fish including salmon, tuna, halibut, and herring. In addition, certain types of algae contain DHA. EPA is believed to play a role in the prevention of cardiovascular disease, while DHA is the necessary for proper brain and nerve development.
Omega-3 fatty acids are said to reduce risk for coronary heart disease. It is considered good cholesterol (high-density lipoprotein that helps reduce bad cholesterol known as low-density lipoprotein). Salmon, tuna, sardines, mackerel, trout, herring are the best sources of omega-3 fatty acids. Recommended to eat at least one serving 3 times a week.

Japanese foods are considered highest in omega-3 fatty acid content (of course, depending on what you actually order).

For cooking, canola and olive oils are the best choices.
Lots of people have given u answers. It is very essential for human being. As per our (Indian) food habit, we take very less Omega 3 in our food. That is why scientists are advising us to take Omega3 food supplement daily.

To control cholesterol Vit. B supplement is also necessary.

For further information please visit nutrilite.com

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