Apparently Mark Bittman from the NY Times has bought Lustig’s thesis that “sugar is toxic” because an increase in a society’s sugar consumption is correlated with diabetes. So I guess that food is toxic because overeating and obesity is also correlated with diabetes.
Let’s stick with real definitions, as long as we are trying to be scientific. Overconsumption of sugar may be bad for you, but that doesn’t make sugar a “toxin.”