Ive heard that the GLA from evening primrose oil is more bioavailable than the GLA from borage oil. Is this true?
No it’s not true In fact some studies show that GLA from borage oil is the more bioavailable of the two The main sources of GLA are borage oil, evening primrose oil, and black currant oil. In today’s market place, evening primrose oil has established itself as a popular source of GLA; however, this has been accompanied by many unsubstantiated claims regarding its superiority over borage oil, especially in terms of bioavailability. In simplistic terms, bioavailability refers to the chemical form of a nutrient that is most “available” to the body for maximum utilization, and thus maximum nutritional benefit. Many unsubstantiated claims have been made regarding the superiority of evening primrose oil as the most bioavailable GLA source. The debate stems from the positioning of GLA within the triglyceride molecule between evening primrose and borage oils. Fatty acids in the “middle” position of the triglyceride are believed to be absorbed more efficiently, and are thus more “bioavailable”
