A blue-green algae known as spirulina is rich in protein, vitamins, minerals, carotenoids, and antioxidants. Weight loss, improved blood pressure, and heart health are just a few of the health advantages of spirulina. Low-density lipoprotein (LDL) cholesterol, triglycerides, and total cholesterol can all be dramatically reduced with the use of spirulina pills. The inflammation of the nasal passages, a typical sign of allergic rhinitis or seasonal allergies, appears to be lessened by spirulina. The proportion of body fat and waist size can both be significantly reduced with the use of spirulina. Taking spirulina causes the body to produce more nitric oxide, which relaxes blood arteries and lowers blood pressure.