Lifestream Bioactive Spirulina Balance 500 mg Tablets are a concentrated, nutrient-rich, ancient superfood. It provides a powerful combination of vitamins, minerals, amino acids and antioxidants for optimal wellbeing. When taken as part of a healthy diet made up of a variety of foods, this complete plant protein: Provides iron which contributes to reducing tiredness and fatigue. Provides a natural source of iron. Is naturally bioavailable.