He's probably referring to the anti-carb/fructose people, see Lustig. Fructose alarmism is IMHO, BS. See here for more information: http://www.alanaragonblog.com/2010/02/19/a-retrospective-of-...

I view it a bit more simply. Find me a person who is fat because they ate too much fruit or drank too much real OJ. Obviously those things contain calories, but in an overall scheme of a persons diet, whole fruit in particular, is not adding to the obesity problem.

This is absolutely not true.