Researchers from Karolinska Institutet in Solna, Sweden suggested that polyunsaturated fatty acids, omega-3 and omega-6 fatty acids
are essential to life and the body is unable to produce itself, so they must be sourced from foods such as nuts and certain vegetable oils; and long-chain omega-3 fatty acids are primarily found in oily fish.
Flaxseed oil is rich in the A omega-3 fatty acid ALA (alpha-linoleic acid), while black currant, borage and evening primrose oils are good sources of the omega-6 fatty acid
The study also showed that, as the ratio of omega-6 fatty acids
to omega-3s increases, so does the risk for hip fracture.
1: Dietary sources and enzymatic conversion pathways of omega-3 and omega-6 fatty acid
Omega-6 fatty acids
include the essential linoleic acid (LA), found mainly in corn oil, soybean oil, and some seeds.
There must be a balance of omega-3 and omega-6 fatty acids
," warns Dr.
4 g per day of the omega-6 fatty acid
gamma-linolenic acid) or placebo for 24 weeks.
The main central nervous system omega-3 fatty acids are eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA); the main omega-6 fatty acid
is arachidonic acid.
Through further development, these high levels of GLA hold promise of providing consumers with a more cost-effective and convenient source of the health-promoting omega-6 fatty acid
Gamma linolenic acid is an omega-6 fatty acid
with health benefits that are similar and complementary to the benefits of omega-3 fatty acids.
ALA and linoleic acid (LA) - an omega-6 fatty acid
- are the only true "essential" fatty acids.
GLA, an omega-6 fatty acid
, is an intermediate in human metabolism and serves as a precursor for a number of biologically active molecules vital to the maintenance of membrane structure and normal cell signaling.
In "Restoring the Tissue Omega-3: Omega-6 Fatty Acid
Balance to Optimize Health," William E.
One type of fat that still elicits confusion is a class of polyunsaturated fats called omega-6 fatty acids
, found in soybean oil, corn oil, nuts and seeds.
A ratio of three omega-6 fatty acids
to one omega-3 fatty acid is best, since excessive amounts of omega-6 are unhealthy.