Fresh spirulina is a whole-food source of protein, iron and other naturally occurring nutrients. It can be added to smoothies, juice, oats and meals as part of a varied diet.
Fresh, frozen and dried spirulina products are processed and stored differently. Those differences may affect taste, texture and some compounds, but they do not justify claims that one food can prevent infections, cancer or other diseases.
Use spirulina as food, not as a replacement for medical care or a balanced eating pattern.