A Note On Blending Lemons
I use this Vitamix Blender for all my smoothies , it can blend anything... no seriously, anything! I add the entire lemon to this smoothie - peel and all! If you don't have a high-speed blender (like a Vitamix or Ninja system, etc.), then you can zest 1 lemon, then add the juice to the smoothie. You'll get the same flavor, but not as many nutrients as consuming the whole lemon.