I've found http://www.precisionnutrition.com/ http://www.precisionnutrition.com/ to be one of the better resources online. I signed up for the certification and

I've found http://www.precisionnutrition.com/ http://www.precisionnutrition.com/ to be one of the better resources online. I signed up for the certification and it's way more advance than what you see everyone else talking about. It explains the basics of how the body actually digests foods then goes into the day to day stuff.