Bioactive iridoids in some popular commercial fruit juice products were compared by using an analytical HPLC method. The experimental results indicate that Tahitian Noni® Original Bioactive Beverage has the highest amount of iridoids, much higher than other fruit juice products, including the ones claimed to contain noni juice. The acai juice blend and mangosteen juice blend contain only very little amount of iridoids, which are from their minor ingredient, blueberry juice. No iridoids are found in any other juice products originating from other fruits.
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