Objective: Excess fructose consumption is hypothesized to be associated with risk for metabolic
disease. Actual fructose consumption levels are difficult to estimate because of the unlabeled
quantity of fructose in beverages. The aims of this study were threefold: 1) re-examine the fructose
content in previously tested beverages using two additional assay methods capable of detecting
other sugars, especially maltose, 2) compare data across all methods to determine the actual free
fructose-to-glucose ratio in beverages made either with or without high-fructose corn syrup
(HFCS), and 3) expand the analysis to determine fructose content in commonly consumed juice
products