This is the source they used: https://www.giejournal.org/article/S0016-5107(03)01304-X/fulltext https://www.giejournal.org/article/S0016-5107(03)01304-X/ful...

This is the source they used: https://www.giejournal.org/article/S0016-5107(03)01304-X/fulltext https://www.giejournal.org/article/S0016-5107(03)01304-X/ful... Does was 24 grams. For reference, a 12 ounce can of coke has 39 grams of sugar. However, this was not a double blind study, so mileage my vary.