Bias?!?! No!

Yes, that's right: nutrition studies funded by animal food companies are biased.

I'll wait for the shock to die down.

We all know (or we should) that companies funding research into their product will sit on any negative results. Thus, there's a simple publication bias towards positive results (which is there for any study, really, but more so when the funding is private and financially interested). Be aware. Any article will (or, again, should) mention the source of funding. Look at it and understand what it might mean to the results.