Using a sweetener of your choice is optional. You can skip any sweetener at all if you want. It’s totally up to you, and as long as you’re happy, I’ll be happy! Here are a few great options: Honey - I love the flavor of honey drizzled over Greek yogurt, so it makes sense to add it to this smoothie recipe.  Maple Syrup - Using maple syrup is a wonderful option and adds the right touch of sweetness.  Stevia - Sprinkle in a packet of stevia to help sweeten it up a little bit.  Agave Nectar - Yummy! Adding agave nectar is a pleasant surprise and a perfect complement to the drink.