One-Third of Lipoic Acid Supplements Fail Quality Test, ConsumerLab.com Reports

In a recent ConsumerLab.com evaluation of alpha-lipoic acid supplements, only two-thirds of the brands tested passed quality review.

Lipoic acid is a natural antioxidant that can help diabetics control blood sugar and reduce symptoms of peripheral neuropathy. In its tests on various brands of lipoic acid supplements, ConsumerLab.com found that two brands' supplements contained less lipoic acid than was promised on their product labels. A third product was called out for making FDA drug-classified claims.

The other seven lipoic acid supplements tested by ConsumerLab.com did meet quality standards, as did five other products that passed ConsumerLab.com's voluntary certification testing.

None of the products tested exceeded contamination limits for lead.

ConsumerLab.com's latest report specifies which lipoic acid supplements failed testing, as well as which passed. For more information, visit www.consumerlab.com.