Spirulina

Spirulina Clinical Report Summary

Research shows that spirulina can strengthen the body's immune system response and help fight off deadly disease (1, 2, 3, 4). Studies show that spirulina, a blue-green algae full of vitamins and other essential dietary nutrients, can boost the production of blood cells that kill off viruses and tumors (2, 3). Other research shows that spirulina can block some of the allergic reactions associated with nasal allergies (4). Although these studies are promising, scientists say more research needs to be done to further confirm these findings. People have used spirulina for thousands of years but modern research has only started to decode its potential health benefits.

Spirulina Overview

Spirulina is a type of blue-green algae found in warm water lakes and ponds. This cyanobacteria includes many different species like Spirulina platenis and Spirulina maxima. The algae have been a dietary staple for many in parts of Mexico and Africa for thousands of years. Spirulina is rich in antioxidants, vitamins and nutrients like vitamin E, beta-carotene, B complex vitamins, and gamma linolenic acid or GLA, which is an essential fatty acid. Spirulina is also high in protein, making up 70% of the algae, and amino acids (1). The protein content of spirulina does not match those found in animal sources like milk and eggs; however, scientists say it is the best source of protein from a plant. Because of its nutrient profile, spirulina has become a popular dietary supplement, especially for vegetarians who lack essential nutrients found in protein. This supplement is also used to increase energy and enhance the immune system (2, 3, 4). Spirulina is usually found in pill or powder form and should be farmed in controlled ponds for purity (1).

Safe Use of Spirulina

Doses of spirulina vary but are usually in the range of 1,000 to 3,000 mg per day. Spirulina is best when taken at mealtimes over the course of the day. Studies show that spirulina is generally safe with few known side effects. However, more research needs to be done to access safety and production for long-term use.  

Clinical Reports for Spirulina

Numerous animal and human studies have been conducted with spirulina and there is strong evidence from these reports to support spirulina's use and its ability to boost the immune system. Many researchers caution that more study needs to be done as they have just begun to uncover all of spirulina's health benefits. Two studies are notable to mention in this report. The first shows that spirulina can increase production of Natural Killer or NK cells in the blood stream. These cells are a potent force of the immune system and fight off viruses and tumors associated with cancer (2, 3). Another study shows that spirulina can block some chemical allergic reactions in people with nasal allergies (4). Other studies have looked at spirulina as a treatment for diabetes but it is premature to mention results at this time (1, 2). Although all of these studies are promising, researchers agree that more studies need to be done in order to understand all of spirulina's health benefits.  

Spirulina References

1. Ciferri O. Spirulina, the edible microorganism. Microbiological Reviews. 1983; 47(4): 551-578.
2. Gitte S et al. Blue-green algae as an immuno-enhancer and biomodulater. JANA. 2001; 3(4): 24-30.
3. Hirahashi T et al. Activation of the human innate immune system by Spirulina: augmentation of interferon production and NK cytotoxicity by oral administration of hot water extract of Spirulina platensis. Int Immunopharmacol. 2002;2(4):423-34.
4. Mao TK et al. Effects of a Spirulina-based dietary supplement on cytokine production from allergic rhinitis patients. J Med Food. 2005; 8(1):27-30.