Here's the thing. Sometimes, common sense trumps research. In fact, most people who tell me: Everything in moderation are not healthy and are overweight. In my speeches, I explain why Everything in moderation does not work.
In regard to research, I recommend reading this article: Lies, Damned Lies, and Medical Science. If you read the article, you will discover that much of what we believe to be accurate information, is not.
Another great resource is the blog/website Health News Review.