And, also, let's not forget a couple of things about epidemiology and dietary recalls:

First, the study was based on 2 24-HOUR dietary recalls. How can you determine what someone eats everyday throughout the year, with only 2 days' worth of info?

Second, an ASSOCIATION never, ever, proves CAUSATION. This is the basic rule of epidemiology, yet epidemiologists routinely try to imply causation from associations!