Three studies show that Juice Plus+® helps support a healthy immune system
University of Florida
Nantz et al. Journal of Nutrition, 2006
Study summary and findings:
Daily consumption of Juice Plus+® for eleven weeks effectively increased plasma levels of important antioxidant nutrients and led to an improvement in a marker of immune function and reduction of DNA damage in law school students.
This research determined the effect of Juice Plus+® on phytonutrient status, on markers of immune function, and on lymphocyte (white blood cell) DNA structural integrity as measured by resistance to damage. Fifty-nine (59) healthy law school students participated in this study. Subjects consumed Juice Plus+® capsules daily for 77 days (eleven weeks). Blood for antioxidant analysis and to obtain lymphocytes was collected at baseline, day 35 and day 77. This study found an increase in a specific type of T cell (gamma delta) which plays a role in protecting the body from microbes associated with infectious illness. In addition, a significant decrease over baseline values in susceptibility to DNA damage after consumption of Juice Plus+® at both 35 and 77 days and a significant increase over baseline values for the phytonutrients beta-carotene, lutein, lycopene, and vitamin C were also observed.
Complete Article: Journal of Nutrition, 2006; 136: 2606-2610
University of Arizona
Inserra et al. Integrative Medicine, 1999
Study summary and findings:
Daily consumption of Juice Plus+® effectively increased plasma levels of important antioxidant nutrients and led to an improvement in selected markers for immune function in this elderly population.
The aim of the study was to investigate the effect of Juice Plus+ on immune function and serum antioxidant concentration in elderly people. Forty-six healthy, elderly (age sixty or older) adults completed this study. All subjects consumed Juice Plus+® daily for 80 days. Blood samples were taken at baseline, and again at study day 40 and day 80. Levels of select phytonutrients (lutein/zeaxanthin, alpha-carotene, beta-carotene, lycopene and alpha-tocopherol) increased significantly and several measures of immune function improved compared to baseline values after consumption of Juice Plus+® capsules.
Complete Article: Integrative Medicine, 1999; 2 (1): 3-10
Charité University, Berlin
Roll S, et al. British Journal of Nutrition, 2011
Study summary and findings:
Healthcare professionals who took Juice Plus+® over the cold winter months reported 20% fewer days with moderate to severe upper respiratory symptoms than those receiving placebo. Additionally, participants in the Juice Plus+ group did not need to take over-the-counter medications for as many days as those in the placebo group, providing further evidence that their symptoms were not as severe.
Article abstract: British Journal of Nutrition, 2011; 105, 118-122