To clarify: The linked oat milk has 10% oats, oats have 4% sugar [0]. So if the oat milk only had sugar from oats, it would have 0.8g of sugar (0.1*0.04*200g). So how does it have 5.84g of sugar if they advertise "There is no added sugar whatsoever."? [1] The trick is that some of the oats are chemically converted to sugar.