Navigation Links
Mayo Clinic proceedings highlights research about cardiovascular benefits of omega-3 fatty acids
Date:3/10/2008

ROCHESTER, Minn. -- Thousands of research studies have documented how the oils known as omega-3 fatty acids can benefit the cardiovascular system, particularly among people diagnosed with coronary artery disease. The incredible volume of research on this topic creates difficulty for many physicians and patients to stay current with findings and recommendations related to these oils. In the March issue of Mayo Clinic Proceedings, contributors briefly summarize current scientific data on omega-3 fatty acids and cardiovascular health, focusing on who benefits most from their protective effects, recommended guidelines for administration and dosing, and possible adverse effects associated with their use.

Two omega-3 fatty acids that have been associated with cardiovascular benefit, docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), are found in fish oils. The best source for DHA and EPA are fatty coldwater fish such as herring, mackerel, salmon and tuna. Fish oil supplements or algae supplements also can provide omega-3 fatty acids.

Author James OKeefe, M.D., a cardiologist from the Mid America Heart Institute in Kansas City, Mo., cites the results of several large trials that demonstrated the positive benefits associated with omega-3 fatty acids, either from oily fish or fish oil capsules.

The most compelling evidence for the cardiovascular benefit provided by omega-3 fatty acids comes from three large controlled trials of 32,000 participants randomized to receive omega-3 fatty acid supplements containing DHA and EPA or to act as controls, explains Dr. OKeefe. These trials showed reductions in cardiovascular events of 19 percent to 45 percent. Overall, these findings suggest that intake of omega-3 fatty acids, whether from dietary sources or fish oil supplements, should be increased, especially in those with or at risk for coronary artery disease.

How much fish oil should people attempt to incorporate into their diets" According to Dr. OKeefe, people with known coronary artery disease should consume about 1 gram per day, while people without disease should consume at least 500 milligrams (mg) per day.

Patients with high triglyceride levels can benefit from treatment with 3 to 4 grams daily of DHA and EPA, says Dr. OKeefe. Research shows that this dosage lowers triglyceride levels by 20 to 50 percent.

About two meals of oily fish can provide 400 to 500 mg of DHA and EPA, so patients who need to consume higher levels of these fatty-acids may choose to use fish oil supplements to reach these targets.

Dr. OKeefe also notes that research supports the effectiveness of combining the consumption of fish oil with the use of cholesterol-lowering medications called statins. Combination therapy with omega-3 fatty acids and a statin is a safe and effective way to improve lipid levels and cardiovascular health beyond the benefits provided by statin therapy alone. Blood DHA and EPA levels could one day be used to identify patients with deficient levels and to individualize therapeutic recommendations.

Dr. OKeefe found little evidence of serious adverse effects associated with fish oil consumption. In prospective placebo-controlled trials, no adverse effects were observed to occur at a frequency of more than 5 percent, and no difference in frequency was noted between the placebo and omega-3 fatty acid groups, he says.

The most commonly observed side effects include nausea, upset stomach and a fishy burp. Taking the supplement at bedtime or with meals, keeping fish oil capsules in the freezer or using enteric-coated supplements may help reduce burping and upset stomach symptoms.


'/>"/>

Contact: John Murphy
newsbureau@mayo.edu
507-284-5005
Mayo Clinic
Source:Eurekalert

Related medicine news :

1. Anemia and tropical diseases; Is pharmacogenomics ready for the clinic?
2. Radiologists encouraged to look beyond cancer for clinically unseen diseases
3. Clinical depression linked to abnormal emotional brain circuits
4. Preclinical study suggests organ-transplant drug may aid in lupus fight
5. Mayo Clinic researchers discover new diagnostic test for detecting infection in prosthetic joints
6. AASM encourages those student-athletes at risk for developing osa to visit a sleep clinic
7. Thailand: Partners Open Free AIDS Treatment Clinic in Renowned AIDS Temple in Lop Buri
8. MinuteClinic Becomes Participating Provider with Assurant Health
9. Therap Services Continues to Hire Experienced Developmental Disability Industry Clinicians for its Customer Support Team
10. Acupuncturists Relocation Tightens Relationship With Fertility Clinic
11. Cardiovascular Technologies to be Highlighted at 5th Annual Cleveland Clinic Medical Innovation Summit, Oct. 1-3
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/24/2017)... ... ... Patients who want to receive cosmetic dentistry procedures such as Invisalign® or ... a consultation, with or without a referral. Dr. Bedich enjoys improving the appearance of ... Dr. Bedich offers a variety of cosmetic dentistry services at his practice that are ...
(Date:5/24/2017)... ... May 24, 2017 , ... ... reproductive tract in which the endometrial lining of the uterus spreads into ... pain. Patients experiencing painful intercourse, painful periods, pelvic pain, or irregular bleeding ...
(Date:5/24/2017)... NY (PRWEB) , ... May 24, 2017 , ... ... the practice is offering holistic pediatric dentistry options for its patients on Long ... of the patient’s entire physical well being, and is one of the biggest ...
(Date:5/24/2017)... ... 2017 , ... Technique, technique, technique – with a dash of common sense. ... training and exercise or simply lifting heavy objects, advises Dr. Kaliq Chang, interventional pain ... Chang says. “Improper technique in lifting anything heavy or an attempt to lift too ...
(Date:5/23/2017)... ... May 23, 2017 , ... Allegheny Health Network ... The Alexis Joy D’Achille Center for Women’s Behavioral Health at West Penn Hospital ... western Pennsylvania for women suffering from pregnancy-related depression. Construction of the Center is ...
Breaking Medicine News(10 mins):
(Date:5/10/2017)... , May 10, 2017 Global Health Intelligence ... Latin America , published its 2017 ranking of ... is based on extensive data analysis from GHI,s hospitals ... hospitals database for the region. The GHI database covers 86% ... offering more than 130 data points for each institution in ...
(Date:5/9/2017)... , May 9, 2017  Demonstrating its ... board of directors for the Pharmaceutical Research and ... for membership. Biopharmaceutical companies will now have to ... order to be eligible to join PhRMA. ... the board is sending a clear message that ...
(Date:5/6/2017)... Texas , May 5, 2017   Provista , ... with more than 200,000 customers, today announced Jim Cunniff ... a wealth of executive and business experience to Provista, including ... compounding pharmacy in California . He assumed ... "Jim is a great fit for Provista," says ...
Breaking Medicine Technology: