Evaluation of the antioxidant action of the dietary supplements, juice plus

The antioxidant properties of methanolic extracts from ‘Juice Plus fruit’ and ‘Juice Plus vegetable’, which are sold in capsule form as dietary supplements, were evaluated using a range of established in vitro antioxidant assays. The values are compared to representative extracts from equivalent amounts (by dry weight) of selected fruits and vegetables prepared by the same method. Although there are some differences between the results of each assay, in general Juice Plus performed about equally to the fresh fruit and vegetables on a dry weight basis. This implies that, based on in vitro assays to measure antioxidant potential, one capsule of ‘Juice Plus fruit’ or ‘Juice Plus vegetable’ (weighing 1 g) is equivalent to about 10 g (fresh weight) of fruit or vegetable.