Higher protein percentage. ON's Gold Standard 100% Whey has always been a leader in this respect. Protein shakes are absolutely fantastic when it comes to pre-workout or post-workout nutrition.
1. Place water, whey protein powder, and peanut butter in a blender. Blend for 1 minute.
2. Add in ice cubes and blend for another 1-2 minutes.
3. Serve immediately to enjoy.