Spirulina is a high nutrition daily supplement that boosts your stamina and reduces fatigue. It’s a protein powerhouse that’s easy to digest. It contains vitamin B-12, iron, vitamins E, B-1, B-5, and B-6, as well as zinc, manganese, copper, and amino acids. Spirulina tablets are high in antioxidants, which help the body’s natural cleansing and detoxification processes.