Nature's Plus - Spiru-Tein UNSWEETENED Simply Natural Shake Vanilla - 1.63 lbs. Nature's Plus Spiru-Tein Unsweetened Simply Natural Original Vanilla is a pure, unsweetened version of Nature's Plus Spiru-Tein, the world's greatest energizing protein shake. With only 5g of carbs and 80 calories per serving, Nature's Plus Spiru-Tein Simply Natural is a creamy and delicious treat for both low-carb and low-calorie diets. Nature's Plus Spiru-Tein Energy Shakes now feature our pioneering, patent-pending Tri-Part Protein Blend of non-GMO rice protein, pea protein, and both non-fermented and fermented soy. With 14 grams of protein, each serving of Spiru-Tein is a high-protein energy meal. Each delicious flavor of Nature's Plus Spiru-Tein Unsweeteened Simply Natural has been meticulously engineered to provide a broad range of minerals and an incredible 100% of the Daily Value of all vitamins. Features & Benefits: Mixes Instantly No Blender Required. Vegetarian Yeast Free Blue-Green Algae (Spirulina)Blue-green algae, of which spirulina is a well-known example, is a group of 1,500 species of microscopic aquatic plants. The two most common species used for human consumption are Spirulina maxima and Spirulina platensis. Spirulina is particularly rich in protein and also contains carotenoids, vitamins, minerals, and essential fatty acids. Where is it found?Blue-green algae grow in some lakes, particularly those rich in salts, in Central and South America, and Africa. They are also grown in outdoor tanks specifically to be harvested for nutritional supplements. Who is likely to be deficient?As it is not an essential nutrient, blue-green algae is not associated with a deficiency state. However, people who do not consume several servings of vegetables per day could benefit from the carotenoids and other nutrients in blue-green algae. Since it is a complete protein, it can be used in place of some of the protein in a healthy diet.