Topical Area: Carotenoids and Retinoids (CARIG)
Objectives : Recent technology improvements have allowed measurement of carotenoid pigments utilizing simple reflection spectroscopy fingertip measurements (Veggie Meter®) (1). We used this technique to measure the effect of ingestion of three different dietary supplements containing carotenoids of different types and potencies: Vision Health with Lutein, Multi Carotene (beta carotene, alpha carotene, lutein, zeaxanthin), or Concentrated Fruits & Vegetables (lutein, lycopene) (2).
Methods : In an open label study, a total of 24 volunteers (8 for each of the study products) consumed the supplements daily according to label recommendations. Veggie Meter® measurements were taken on Day 0 and Weeks 2,4,6,8,10 and 12. Supplements were consumed for the first 6 weeks and then were discontinued for the following 6 weeks. Questionnaires were used at baseline, 6 and 12 weeks to obtain a brief history of supplement usage and fruit/ vegetable intake.
Funding Sources : Funding for the study was provided by Access Business Group/Amway.