Figure 1: Correlation between RS Score and total plasma carotenoids in a study to determine whether pressure-mediated reflection spectroscopy (RS Score) measured by Veggie Meter can be used as a valid biomarker of fruit and vegetable intake among African American/Black college students (Maryland, January to May 2019).
aTotal carotenoids indicate the sum of α-carotene, β-carotene, ß-cryptoxanthin, lycopene, and lutein/zeaxanthin.
bTo convert mg/L to μmol/L, multiply mg/L by 1.818. To convert μmol/L to mg/L, multiply μmol/L by 0.550.

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