In a 21-day randomized, double‐blind, placebo‐controlled crossover trial of 25 healthy adults, scientists from the University of Memphis showed that Ambrotose AO capsules significantly increased two measures of antioxidant capacity in the blood: oxygen radical absorbance capacity (ORAC) and Trolox Equivalent Antioxidant Capacity (TEAC).* Study was at least partially funded by Mannatech.


Bloomer RJ, Canale RE, Blankenship MM, Fisher-Wellman KH. (2010) Effect of Ambrotose AO® on resting and exercise-induced antioxidant capacity and oxidative stress in healthy adults. Nutrition Journal, 9:49. doi:10.1186/1475-2891-9-49.

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