1. In the early 1970s, evening primrose oil was approved as a nutritional supplement in the United Kingdom. Since then, Australia, Canada and other countries have approved the use of evening primrose oil as a nutritional additive or functional food ingredient. Some companies have developed a series of nutritional products and specialty foods containing gamma-linolenic acid, such as nutritional products for infants sold in Sweden and Switzerland, and nutritional products for the elderly and convalescent patients sold in France internationally. Both are evening primrose oil, in which γ-linolenic acid can be directly ingested by the human body. In addition, gamma-linolenic acid is also used in functional foods such as frozen fruit, candy, beverages, and chocolate.
2. Gamma linolenic acid can also be used as a medicine. A large number of research results show that γ-linolenic acid has a significant reversal effect on clinical symptoms caused by the lack of "essential fatty acids" in the body. These symptoms are manifested as follows: causing changes in tissue fatty acid metabolism, affecting enzyme systems in lipid (such as lipoprotein lipase, lecithin cholesterol phthaloyl-converting enzyme activity), and interfering with hepatic fatty acid synthesis. Therefore, gamma-linolenic acid is the main drug for the treatment of some patients with deficient in vivo enzyme system. For patients with allergic eczema, it can significantly improve skin condition and relieve itching. For diabetic patients, supplementing γ-linolenic acid can restore the function of damaged nerve cells, reduce serum cholesterol and triglyceride levels, and inhibit platelet aggregation in the body. Therefore, gamma-linolenic acid is more effective in preventing and treating athe rosclerosis, hyperlipidemia and obesity.
3. Gamma linolenic acid has good physiological and biochemical functions, and plays an important role in the nutrition, fitness, protection and efficacy of human skin. Adding it to cosmetics can prevent aging and make the skin tender. Products added with gamma-linolenic acid not only have good skin-friendliness, no greasy feeling, but also have anti-inflammatory and anti-rough effects, and also have a good effect on the treatment of some sores and skin diseases.