Smith et al. Nutrition Research 1999
Brigham Young University
Study summary and findings:
The daily use of Juice Plus+ reduced susceptibility of DNA to damage and improved carotenoid status in elderly subjects.
This research determined the effect of Juice Plus+ on phytonutrient status and on lymphocyte DNA structural integrity, as measured by resistance to in vitro damage. Twenty healthy men and women (over sixty years of age) participated in this study. Subjects consumed Juice Plus+ capsules daily for 80 days. Blood for antioxidant analysis and to obtain lymphocytes (white blood cells) was collected at baseline and day 80. This study used the comet assay, an in vitro technique used to measure DNA damage in nuclei of the lymphocytes, measured by the length of the tail moment. This study found a significant decrease (shorter tail moment) in susceptibility to DNA damage after consumption of Juice Plus+ for 80 days compared with baseline values. A significant increase over baseline value was observed for the phytonutrients beta-carotene and alpha-carotene.
Article Abstract: Nutrition Research 1999; 19 (10): 1507-1518
