Undernatured whey or fermented protein shake?? To Parent Forum April 15, 2017 at 11:42 am #78832 Emma HillyardParticipant Hi!! I saw undernatured whey protein is one thing recommended to be introduced, but I also saw the body ecology feremented protein powder. Are they similar or one prefered over the other? Thankyou! April 15, 2017 at 12:55 pm #78833 EvaKeymaster You can try one at a time and see how your child does. Typically the undenatured whey boosts glutathione and helps with detoxing. You must be logged in to reply to this topic.