Spirulina contains iron which is necessary for energy production, normal immune system function and normal cognitive function. - Spirulina helps support energy production to help keep you feeling great!Nature's Way Super Spirulina is organic, ensuring you get the nutrition you expect from a superfood. Super Spirulina contains only 100% pure organic Spirulina, and is completely free from additives, preservatives or pesticides.Spirulina is perfect for anyone looking to help support:Energy productionNormal immune system functionHealthy cognitive functionThe reduction of tiredness and fatigue