Spirulina is a blue-green algae widely prized for its superior nutritional benefits. Spirulina is approximately 50-70% protein by weight and has many important vitamins and minerals. Spirulina has been researched for its potential to act as an antioxidant. Studies have also suggested that consuming spirulina may help lower LDL (bad) cholesterol, increase HDL (good) cholesterol, and support a more healthy balance of blood sugar in the body. Spirulina may also support better athletic performance through its impact on oxygen utilization and lipid peroxidation.