Posted 15 January 2013 - 03:59 AM
The healthiest protein powder I have found (and I've tried a lot) is Raw Organic Whey: RawOrganicWhey[dot]com
Whey protein powders are definitely not all created equally and you have to seriously consider what you are putting in your body. What's the point of spending all the time at the gym or on the trails if you're just putting crap back in, right?
First, what the cows eat IS important as well as how they are raised. You don't want hormones, GMO grain feed, or pesticides. You do want organic grass-fed, which is nutritionally superior.
Second, processing of the whey is also important. Whey concentrate is better than isolates due to being much less processed. Still, you have to go further and make sure the whey is processed at low temps and without acid treatment which can denature the amino acids making it harder for your body to digest and assimilate.