The Aug. 13 news article “Modest amount of sugar toxic to mice” overlooked the important fact that the mice in this study were not fed natural sugar.
Characterizing this research as a “sugar study” was misleading because the mice weren’t given natural (table) sugar. According to the authors, “To mimic existing sources of added sugar, we selected a diet containing fructose and glucose monosaccharides in a one to one ratio, approximating the 55:42 and 42:53 ratios found in the two common forms of HFCS [high fructose corn syrup].” The significance of this is that the glucose and fructose in sugar (sucrose) are naturally bonded together, unlike in HFCS, which contains free fructose. Real sugar and HFCS are molecularly different, but they often are lumped together. Only sucrose is sugar.