tokens: Significantly higher levels of vitamin C and catalase activity were found in vegetarians ( C - 63 . 6 and 86 . 5 mumol / l ; CAT - 1497 and 1313 U / ml for males and females , respectively ) when compared to nonvegetarians ( C - 41 . 3 and 54 . 4 mumol / l ; CAT - 1192 and 1086 U / ml ) .