"Twinkies are a highly processed product and should not be consumed in large quantities. Many of the ingredients are not of organic origin and have questionable health effects. For example, flammable and carcinogenic benzene plays a major role in the extremely complicated set of chemical reactions that yield the artificial flavouring vanillin. Also, twinkies are very high in saturated fat and industrial sugar."
so, to put it simply, Twinkies cause cancer