Read it. Pick it up.

This explained so much of my own relationship with food. Chris Van Tulleken wrote this is a very understanding and easy to digest -way. He is honest about the contradictions and about the difficulties of this topic. I really appreciated this, it was easy to read (I recommend it as an audiobook). 

Van Tulleken touches on obesity and our misconceptions about weight and health maintenance. Most of what we think we know about these things are unfounded studies sponsored by the exact companies that feed us these horrible non-foods. For example, in terms of weight loss: exercise actually has a very minimal effect. 

Just read it. It's scary, but it's so important.