I have never gone grassfed/organic and I lost over 90 lbs. I lost 28 lbs in my first month.
It is definitely better and if you can do it, go for it! But don't go bankrupt. Remember don't let better be the enemy of perfect. Aim for 100% but don't beat yourself up if you end up only at 88%. Because 88% is way better than 0%.
Been two years for me now and things just keep getting better!
March 1st 2010: 293lbs | Feb 14th 2012: 199 lbs. | Goal: 210 lbs (Met 5/16/2011)
"My chest hair caught fire when I was fighting a bear with a flamethrower, how do I get my hair back?” - Rivvin