[7 Spinach Smoothie Recipes That Are Uber-Nutritious] Spinach is low-calorie, high-protein, high in dietary fiber and chock full of vitamins (B, C, E, K) and minerals (iron, calcium, magnesium, potassium) vital for brain function, nervous system and healthy skin. Here are spinach’s top 7 nutritional benefits, followed by 7 uber-nutritious spinach smoothie recipes. #SpinachSmoothies #Spinach #HealthySmoothies #HealthySmoothieRecipes #SpinachSmoothieRecipes #HealthyDrinks #Superdrinks