Learn about the incredible health benefits of spirulina, a blue-green algae that's considered one of the most nutritious foods on earth. Packed with protein, iron, antioxidants, and more, spirulina can improve skin health, reduce inflammation, and balance blood sugar. Discover how to incorporate it into your diet and try a delicious Spirulina Smoothie recipe for smooth, glowing skin. Find out which brands to trust and why you shouldn't rely on spirulina as a standalone B12 supplement.