You: The Ultimate Filter

There is one important thing, when reading blogs of this nature, to remember.

Law #12: You have the final say in matters of you.

Just because I say that dairy causes Acne, doesn't mean that it does in you. It is always important to consider things within the context of yourself. 

Ask yourself how relevant the information is to you. Run experiments on yourself. The ultimate way to find out how you work is to find out how you work.

First hand experience is always more trustworthy than second hand experience. Note: In some cases, second hand experience is a better option. Don't go trying to disprove gravity.

Filter all information through yourself -- don't blindly absorb it.