Spirulina is a blue-green algae that has been used for thousands of years as a source of nutrients and for its medicinal benefits. It is rich in protein, B vitamins, vitamin E, beta carotene and various minerals. Notably, spirulina has more beta carotene than carrots. Today, spirulina is used for a variety of health conditions, but scientific evidence supporting its efficacy is lacking. Therefore, consult with your doctor before using spirulina medicinally.
Identification and Dosing
Spirulina is also commonly called blue-green algae, dihe, cyanobacteria, pond scum and tecuitlatl. According to Wellness.com, commonly used oral doses of spirulina for diabetes or high cholesterol are 1 to 1.4 g taken two or three times daily with meals. Spirulina has been taken in doses of 200 mg three times daily just before eating for weight loss, adds Wellness.com.
Benefits
Spirulina has antioxidants that help to fight against cancer. Also, spirulina enhances the immune response to help protect against infectious disease. Its high beta carotene concentrations promote healthy vision, and the high levels of iron enhance red blood cell formation. Spirulina may protect against liver damage due to chronic hepatitis and against allergic reactions by its histamine-blocking effects. Other benefits include anti-inflammatory actions for conditions such as arthritis. Spirulina may also lower triglycerides and increase HDL, or good, cholesterol.
Side Effects
According to Wellness.com, there have been few side effects reported from spirulina use and they have usually occurred following oral daily doses of 1 g or higher. The most common side effects are allergic skin reactions, head pain, facial flushing, muscular pain, perspiration and impaired concentration. Liver damage may also occur.
Considerations
Spirulina should be used cautiously in the presence of an inherited disease called phenylketonuria, or PKU, notes Wellness.com. Spirulina may also increase serum calcium levels and should be used with caution in combination with other calcium supplements. Spirulina should be avoided during pregnancy and breast-feeding because of possible heavy metal contamination, such as mercury, notes Drugs.com.
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