Gamma-linolenic acid (GLA) is an essential omega-6 fatty acid that supports brain function, metabolism, and bone health. It can be found in dietary sources such as spirulina and evening primrose oil, and supplements are available. GLA may have therapeutic benefits for conditions such as rheumatoid arthritis and diabetic neuropathy, but more research is needed. It is important to consult a physician before taking GLA supplements, as they can interact with prescription drugs and have potential side effects.
Gamma-linolenic acid is an omega-6 essential fatty acid that occurs naturally in vegetable oils. It is also known as GLA or y-linolenic acid. The human body needs this fatty acid, which is important for brain function and development, metabolism, and bone health, but cannot produce it; Dietary sources are necessary and include spirulina, evening primrose, and other plant seed oils. Supplements containing the appropriate oils are also often available at health food stores.
Omega-6 fatty acids, along with omega-3 fatty acids, are considered essential for brain function and development. Omega-6 fatty acids, such as gamma-linolenic acid, support cognitive and reproductive function, help maintain healthy skin, hair, and bones, and control metabolism. A properly balanced diet generally contains adequate amounts of omega-3 and omega-6 fatty acids.
Dietary sources of gamma-linolenic acid include evening primrose oil, spirulina, and black currant oil. Although there are relatively few dietary sources of fatty acid, the body is capable of manufacturing it from linolenic acid, an essential fatty acid found in sunflower oil, corn oil, soybean oil, and a variety of other vegetable oils. This fatty acid may also have anti-inflammatory properties and is sometimes used as a therapeutic dietary supplement. Therapeutic doses range from 300 to 3,000 mg per day and are often taken with food. Therapeutic benefits of gamma-linolenic acid supplementation may take up to six months to appear, although they may appear within one to three months after starting supplementation therapy.
Research suggests that gamma-linolenic acid may be beneficial in the treatment of some medical conditions. Because omega-3 and omega-6 fatty acids can help reduce inflammation, they can be effective in relieving rheumatoid arthritis symptoms and can also relieve nerve pain and discomfort in those suffering from diabetic neuropathy. Evening primrose oil, a dietary source of gamma-linolenic acid, has long been used as a home remedy for allergy symptoms, and limited research seems to suggest that allergy sufferers have low blood levels of the fatty acid. . Studies may also suggest some benefit in the treatment of ADHD, hypertension, breast cancer, eczema, and osteoporosis. However, current research has been inconclusive as to the true benefits of supplementation, and more study is needed.
It is considered unwise to use gamma-linolenic acid supplements for therapeutic purposes without the supervision of a physician. Dietary supplements can interact with prescription drugs and cause dangerous side effects. Pregnant women and those with seizure disorders are generally advised to avoid these fatty acid supplements. Side effects of the supplement can include loose stools or diarrhea, headaches, nausea, and abdominal pain. Evidence suggests that the supplements may also lower blood pressure, and some research suggests that they may increase the risk of prostate cancer. Most medical professionals discourage people at risk for prostate cancer from using gamma-linolenic acid supplements.
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