dry food causing problems?

[Amy Watson]

I'm reading through Wendy's sick kitty manual, and I just found this, which surprised me:

Dry food:  Not good for cats.  Contributes to obesity.  Exacerbates all sorts of health problems.

I wondered if you folks could help me understand why this is?  We've been feeding our cats weight-management hairball-control dry food for years, and I'd never seen this kind of claim before.  Right now  we have Eukanuba Mature Care for our cats that are 9 years old and actually eating.

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Amy K. Watson
Columbus, Ohio
http://writerscereal.net