How to Build Lean Muscle Growth & Benefits of Raw Isolate Raw Whey Isolate contains the building blocks of muscles. It helps in releasing the anabolic hormones that assists in building muscles. Cow milk contains the igf-1 hormones in ample amounts which is connected with human growth hormones. Due to its low amount of fat, it boosts lean muscle building. https://www.gogxn.com/blog-visit/5-major-benefits-of-raw-isolate-whey-supplement/