NUDE. Whey Protein Powder NUDE. Nutrition WPI is a clean whey protein isolate naturally free from gluten and soy. To guarantee quality, we only source our whey protein from New Zealand dairy cows that maintain a 100% grass-fed diet.  The milk from the cows is non-GMO, with no rBGH or rBST. A premium tasting product … Continue reading Shop NUDE.