Spirulina is a blue-green algae found in many lakes in Asia Minor and the southwest United States. Spirulina contains hundreds of vitamins and minerals and is a concentrated source for a high-protein diet. There are few known side effects of spirulina use. Typically, side effects are mild and usually only occur in those with an underlying condition. Consult your doctor before taking spirulina, which is available in raw or supplement form.
Edema
Edema, or swelling of your body tissue, is a possible side effect of spirulina use, according to HealthSession.com. Since spirulina provides extremely concentrated vitamins, minerals and proteins, anyone with decreased kidney function may have difficulty filtering all of the molecules. An early sign of weak kidneys and malfunctioning kidneys is swelling of your extremities. If you notice any edema, discontinue use and talk to your doctor. Fluid retention, which causes the swelling, may become more severe and add stress to your heart if not treated.
Fever
Spirulina can cause a slightly elevated body temperature, according to the "Journal of Applied Psychology." The elevated body temperature is thought to be due to an increased cellular metabolism that releases heat as your body processes all of the protein you have just consumed. Although a slight fever is not cause for concern, talk to your doctor if you experience a high fever or prolonged mild fever.
Digestive Trouble
Mild digestive trouble may accompany spirulina consumption, according to Medline Plus. If you take spirulina in large quantities, you may notice a buildup of gas that induces abdominal pain. Also, insufficient fluid may cause chronic constipation while taking spirulina. Spirulina has the ability to trap toxins and leftover substances in the colon. However, you will need to drink enough liquid to help move the spirulina through the digestive tract. If you experience chronic constipation, talk to your doctor about the possibility of other medical problems and the need for medical intervention.
References
- Health Session: Does Spirulina Cause Side Effects?
- "Journal of Applied Psychology"; Current Knowledge on Potential Health Benefits of Spirulina; A. Belay et al.; May 1993
- Medline Plus: Blue-green Algae
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