Besides the gluten-sensitivity hype, this “insight” has a similar long life. No one eats fructose alone. It usually comes along with almost equal amounts of glucose (like in an apple). The ratio of glucose to-fructose has not changed in America for the past 90 years. If fructose levels are going up, then this means glucose levels are also going up. Another unfortunate fact is that fructose intake peaked in 1999, but our obesity crisis continues more than 15 years later.