Lindeberg is a nutrition researcher (conducts studies, co-authors papers) coming from a medical background, which makes him just as much an expert as a nutrition researcher coming from a biochemistry background

Am I asking for too much by insisting on a nutrition researcher from a biochemistry background to refute Campbell? Or are you saying they can both be right within the framework of their fields?

To summarize: Lindeberg, like Campbell, is an experienced nutrition researcher with impressive and relevant credentials. Nutrition is a young and complex field, so there's no broad consensus about everything—although there is broad consensus about some things—but nutrition scientists are doing a decent enough job of figuring things out that I trust them to judge the literature properly.

I am moved enough by your insight and your persistence to give Lindeberg's book a read. :)