What Is the Scientific Evidence for Gamma-Linolenic Acid?
Diabetic neuropathy is a gradual degeneration of nerves caused by diabetes. There is some evidence that GLA can be helpful, if you give it long enough to work. In one double-blind, placebo-controlled study, 111 people with mild diabetic neuropathy received either 480 mg daily of GLA or placebo. 51 After 12 months, the group taking GLA was doing significantly better than the placebo group. Good results were seen in a smaller study as well. 52 However, these promising findings lack further research validation. There is some preliminary evidence that GLA may be more effective for diabetic neuropathy when it is combined with lipoic acid .