Periodontal diseases are highly prevalent chronic inflammatory diseases and a major cause of tooth loss. Data supports an association between periodontitis prevalence and reduced serum levels of antioxidants. Anecdotal reports from periodontal specialists indicate significant improvements in clinical outcomes from periodontal therapy where adjunctive Juice Plus+ is used, in agreement with research data from other systemic diseases where hyper-inflammation is implicated in disease pathogenesis. There is however, a lack of scientific evidence from clinical trials of periodontitis. Given the demonstrable antioxidant deficiency in periodontitis patients (both locally and peripherally), the excess oxidative stress in periodontitis patients, and the anecdotal evidence of clinical benefit from the adjunctive use of Juice Plus+, this study proposes to investigate the impact of daily supplementation with Juice Plus+ as an adjunct to traditional non-surgical periodontal therapy, in improving therapeutic outcomes.