A 2012 paper in the journal Nature suggested that warnings should be placed on sugar similar to warnings we see on alcohol. The authors showed evidence that fructose and glucose in excess can have a toxic effect on the liver as the metabolism of alcohol.
It turns out that ethanol (aka alcohol) in alcoholic beverages undergoes similar metabolism in your body as fructose does. Both increase the risk for several of the same chronic conditions i.e. hypertension, myocardial infraction, dyslipidaemia (lipogenesis), pancreatitis, hepatic dysfunction, obesity, and malnutrition.
Finally, if you think that your slim stature keeps you immune from fructose causing liver damage, think again. A 2013 study found that liver damage from sugar, especially fructose, could occur even without excess calories or weight gain.