Blend all ingredients until smooth, adding more orange juice as needed to reach a smoothie consistency (will depend on the amount of frozen fruit used).
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Notes
*At least one of your fruits should be frozen to make this smoothie frosty cold.Switch up the greens, using spinach instead of the kale.Different fruit can be used in place of the pineapple, like apple, pear, kiwi, mango, or berries.No banana, no problem. Swap out the banana for 1/4 cup canned coconut milk and a drizzle of honey/sugar.Swap out the orange juice for another, like apple, pineapple, or white grape. You can also use any variety of flavorless milk here.Add extras to boost the nutrition in this smoothie, like chia seeds, flax seeds, protein powder, or a spoonful of nut butter.