Dec 11, 2011
The good press surrounding omega-3 fats (namely ALA, DHA and EPA) continues and their positive impact seems to extend to the cardiovascular system, brain, joints and other areas of our body. The benefits of omega-3 fats to general health and disease prevention have lead to an explosion of foods on the market that are formulated around or fortified with omega-3 fats. In the past five years more than 3,000 omega-3 products have been launched worldwide with the majority of these occurring in Europe.
As a huge fan of the cardiovascular system, I am especially intrigued by the positive impact of omega 3 fats on the heart and blood vessels. However, since omega-3 fatty acids have not been shown to lower blood cholesterol levels in a consistent manner in research studies, the cardio-protective effects must extend beyond that mechanism. For instance, omega-3 fatty acid intake is associated with:
- Decreased risk of arrhythmias that can lead to sudden cardiac death
- Decreased risk of blood clots (thrombosis) that can lead to heart attacks or stokes
- Lower serum triglyceride levels
- Slowing the growth of atherosclerosis process (plaque formation)
- Improving the function of blood vessel walls
- Decreasing inflammation
EPA and DHA are found in Atlantic and Pacific herring, Atlantic halibut and salmon, coho, albacore tuna, bluefish, lake trout, and pink and king salmons. It is probably a good idea to include these fish in a regular diet a couple of times a week. ALA, which can be converted to DHA and EPA is found in canola oil and soybean oil, and in even smaller amounts in corn oil, beef fat, and lard.
A common question asked to doctors and nutritionists is whether or not a person should take fish oil supplements to promote a healthy cardiovascular system? At this time there is enough supporting research to suggest that anyone not consuming fish or other seafood should take a fish oil supplement to derive the beneficial omega-3 fatty acids – DHA and EPA. In fact, many people are avoiding fish and other seafood today because of concerns related to the level of heavy metals such as mercury in seafood. Furthermore, the conversation of ALA to EPA and DHA might not be as efficient as needed for optimal health, especially during certain situations such as in older people.
People with high blood cholesterol (total and LDL) and triglyceride levels who take fish oil supplements might experience reductions in one or both, particularly the latter. In addition, fish oil supplementation has also been suggested to lower blood pressure in people with high blood pressure as well as improving glucose tolerance in Type 2 diabetes. For many people, fish oil supplementation can modestly reduce blood pressure and with regard to improving glucose levels in people with Type 2 diabetes, more research is needed to better understand whether or not there is benefit.
In case you are wondering:
ALA = alpha linolenic acid
DHA = docosahexaenoic acid
EPA = eicosapentaenoic acid
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Hi,
Thank you so much for sharing to us the importance of Omega-3 fats in our body. Most of the time we neglect the value or the help it can give to our body because we thought that just be eating healthy foods like vegetables and fruits is enough to keep a healthy body, but we are wrong.
I know someone who experience severe heart attacks though he is known to be a healthy eater. I just talked to his family and have known that he don’t really smoke or drink. With the kind of lifestyle he has I wonder what is missing? Then I thought fish oil supplementsis also necessary to be healthy that fruits and vegetables dont provide.
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Have heard a lot about Omega 3 fats, but was the first time I read what this “Omega 3 fats” were and that it was the “Cardiovascular Super Hero” and other details. Never realized that we get most of them from fish and the importance of taking fish oil supplements along with our diet!! With people turning into vegetarians, I wonder how many of them are paying attention to this very important detail in their diet!! It is indeed a blessing that we get to read such informative articles and do hope to read more like these in the future too!!
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I really want to increase my fish intake at meals but I don’t like the taste of it. Is there some way to prepare it that is healthy but still tastes good? If not, will supplements do just as well?
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