I've had a lot of trial and error in developing my super smoothie. I think I've finally settled on a tasty, healthy, super smoothie recipe. Here's what I put in, and why.
Half a container of plain Greek yogurt: Probiotics, calcium, potassium, protein, zinc, and vitamins B6 and B12. This provides a base for a nice thick smoothie.
Two handfuls of baby spinach OR two frozen spinach cubes: Getting extra veggies in the form of a smoothie is healthy and tasty. Spinach is constantly on "super food" lists. It provides anti-cancer qualities, Vitamins A and K, and fiber, among many other benefits.
A cup of frozen fruit that generally includes strawberries and blueberries: fiber, antioxidants, Vitamin C.
One banana, fresh or frozen (I freeze them myself): I HAVE to have a banana in my smoothie. If there is no banana it doesn't have the thickness or sweetness that I like. Bananas are high in potassium, and great for cramps/pain from workouts and PMS.
One tablespoon of honey (sometimes): I only use honey if the berries I've chosen make the smoothie too tart.
One tablespoon of flaxeeds: Reduces risk of cancer and diabetes, fiber, and omega 3 fatty acids.
1/2 teaspoon of Matcha Green Tea powder: Super antioxidants and energy booster.