Do omega-3 fatty acids affect blood lipoproteins?

EPA Best Evidence. Both EPA & DHA, from phytoplankton, at very high (i.e. Purified Rx) doses, tend to ↓ the triglyceride concentrations in blood. EPA (without DHA & all the other non-beneficial fats in common fish oil) has a track record of also ↓ing LDL particle number, even at lower doses & >35 trials show ↓ed mortality rates. Even more effective for ↓ing triglycerides is greatly ↓ing all carb foods & ↓obesity.
Many ways. At common doses (1g epa/dha) of fish oil there are not major changes in lipids/lipoproteins. However, at higher doses (2-4g epa/dha), tirglycerides may be decreased by 30-50% and while ldl-c may staty the same or increase, LDL particle number (ldl-p) stays the same or decreases.
Several actions. Omege 3 fish oils are most helpful in lowering triglycerides, some people have genetically high triglycerides, and they can also be high for people who are diabetic. Triglycerides are a different type of fat than cholesterol, that is an independent risk for heart problems, and possibly pancreatitis if they are really high. Fish oil can dramatically reduce them, and may also mildly lower your ldl.
FishOils Lower Trigs. Omega3 fatty acids at high doses (2-4 gms/day) do lower tg's, but are most effective when the tg'sare elevated >500mg/dl. At this level they can lower tg's up to 45%. The effect is seen with fish based omega3's (epa & dha) not plant based (eg. Flax seed oil). There is a dose response seen. For each gram of 03's, about 10% additional reduction in triglycerides. Fish burp can be a side effect.

Related Questions

Does omega 3 fatty acids prevent blood clotting?

May be. No direct studies done, but Omega 3 has some anticoagulant properties, so we recommend patients to stop taking Omega 3 before surgical procedures and even before taking Botox injections. They are not as potent as Apirin.

Do omega-3 fatty acids affect your cholesterol?

Yes, many. They tend to have little effect or a slight increase on the bad cholesterol (ldl), they increase your good cholesterol (HDL) by about 9% and their main effect is to lower your triglycerides which they do around 45%.
Yes. Omega-3 fatty acids can have a mild effect on both LDL and HDL as well as a sometimes profound effect on triglycerides when used at certain doses. Most experts feel the beneficial effects of omega-3s go beyond its effect on cholesterol. Unfortunately the research on omega-3s to date has been underwhelming due to poor study design.

Omega-3 fatty acids affect personality?

No. This nutritional supplement will not alter your innate personality. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.

How much omega 3 fatty acids do people need?

Generally 1g per day. For the general patient population 1 gram per day of an omega 3 fatty acid fish oil supplement would be sufficient to reduce cardiovascular risks. The supplement should contain EPA and DHA. For patients with high triglyceride levels of over 500 mg/dL, we would recommend prescription Lovaza, 4 grams per day.

I want to know what's the best source of omega 3 fatty acids?

Fish. Fish such as salmon or krill have highest content fish oil particular in their skin. However there are over-the-counter supplements as well.

What is the difference between omega-3 and omega-6 fatty acids?

The structure. The difference is where the unsaturated chemical bond is in the "tail" of the fatty acid -- 3 positions away from the end (that's where OMEGA comes from -- last letter in the greek alphabet) or 6 positions away. The reason this matters is that biochemically, omega-3 fatty acids get turned into anti-inflammatory signaling compounds, while omega-6 fatty acids may get turned into proinflammatory ones.