Spirulina is a type of blue-green algae that is a complete protein containing all the essential amino acids. It is a good source of iron, vitamin B12, and gamma linolenic acid. Spirulina may help boost the immune system, improve allergies, and fight viral infections. It may also help lower cholesterol, blood pressure, and blood sugar levels.

Price range: $28.90 through $72.00
$72.00
Price range: $26.90 through $71.00