If you are not making sure you are getting enough EFA’s , essential fatty acids, in your diet, and you have any type of inflammatory arthritis, heart disease, mild depression, etc..you need to get some. Today.
The best way to accomplish this varies, and you need to arm yourself with information before rushing out to buy any supplements. This subject is loaded with enough acronyms and jargon to make your head explode, there is a coherent explanation of the GLA, ALA, DHA, omega-3s, 6 and 9 at this website. The important thing to remember is balance. The body needs the correct balance of these essential fatty acids for optimal health.
Even the most steadfast western medicine, mainstream medical folks are finally on board the EFA train, which left the station about 20 years ago with the ND’s, naturopaths, herbalists and and “health nuts” leading the way.
What about the claims that you must purchase expensive ($50 a bottle as opposed to $ 10 ) brand name oils to avoid heavy metals and other contaminants?
According to the NIH medline article on fish oil supplements
“Potentially harmful contaminants such as dioxins, methylmercury, and polychlorinated biphenyls (PCBs) are found in some species of fish. Methylmercury accumulates in fish meat more than in fish oil, and fish oil supplements appear to contain almost no mercury. Therefore, safety concerns apply to eating fish but likely not to ingesting fish oil supplements. Heavy metals are most harmful in young children and pregnant/nursing women. ”
Based on these facts, I would say unless you are pregnant, (in which case you have to be extremely picky about everything, not just fish oils, and may well choose to abstain until after the breastfeeding phase), it is better to take a reasonably priced oil supplement that you can afford to take on a consistent basis for a long period of time, rather than take a more expensive brand that breaks the budget.
You also may want to consider getting your EFA’s from plant sources, where the fish get their omega 3’s;) There are two critical omega-3 fatty acids, (eicosapentaenoic acid, called EPA and docosahexaenoic or DHA), that the body needs. Vegetarian sources, listed below contain a precursor omega-3 (alpha-linolenic acid called ALA) that the body must convert to EPA and DHA. This choice is more in keeping with the holistic whole herb approach that I favor. A diet rich in these natural plant substances may well preclude the need for supplements, especially for those who are taking them for general health reasons.
Flax is the richest known source of ALA. Flaxseed oil is available in both bottle and capsule forms. The oil can be used as a salad dressing, or mixed in smoothies. Flaxseed oil is highly unstable and never should be heated, and is best kept refrigerated. Whole flaxseed can be used to sprinkle on salads and yogurt and is much more stable than the oil, it keeps well at room temperature.
Hemp seed and borage seed, and evening primrose seed oils are important sources of gamma linolenic acid (GLA). Used both in food, supplement capsules and as body oils. Black Cumin oil, or black seed oil can cause skin irritation and is for food use only. These oils should not be used for cooking, or ever be heated, and are best kept refrigerated.
Greens such as Purslane and romine lettuce, because total fat is so low, are not significant contributors to EFA intake for most people but should be a significant part of diet for myriad other reasons. Soybeans and tofu can make a significant contribution to total ALA intake, soybean oil is not the best choice for general use because of high n-6 content. Walnuts - Highest n-3 content of any common nut; only the candlenut has more (30% ALA).
There is no one best approach for everyone. I am a woman over 50, with inflammatory rheumatoid arthritis. I choose to both supplement with a really inexpensive fish oil , and do my best to include plenty of plant and herb sources of fatty acids in my diet.