Based on an article from Women's Health. I use this recipe to make smoothies or popsicles in a Zoku.
2 bananas
2 scoops chocolate protein powder
2 T peanut butter
6 oz honey Greek yogurt
1 t ground flax
1 t chia seeds
1/2 t bee pollen
2 c ice
Add ingredients to blender. Add enough water to cover ingredients and blend until smooth. Add water as necessary.