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A 20-year-old male asked:

does spirulina have any side effects?

1 doctor answer1 doctor weighed in
Dr. Oscar Novick
Pediatrics 58 years experience
Spirulina side effec: Since spirulina is not regulated one can develop serious G.I. Upsets if the spirulina comes from contaminated waters. In addition, one can develop headaches because spirulina absorbs heavy metals from the water its found in.

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A 42-year-old member asked:

How good for you is spirulina?

2 doctor answers3 doctors weighed in
Dr. Stuart Higano
Cardiology 37 years experience
Spirulina: Spirulina, or blue-green algae, has not been shiwn to be effective for a wide range of ailments, and if contaminated, could be harmful. See http://www.Nlm.Nih.Gov/ medlineplus/druginfo/natural/923.Html for details.
A 34-year-old member asked:

What're the health benefits of spirulina, and are there different types?

2 doctor answers3 doctors weighed in
Dr. Stuart Higano
Cardiology 37 years experience
Spirulina: Spirulina, or blue-green algae, has not been shiwn to be effective for a wide range of ailments, and if contaminated, could be harmful. See http://www.Nlm.Nih.Gov/ medlineplus/druginfo/natural/923.Html for details.
A 36-year-old member asked:

Are there health benefits to the organic spirulina capsules?

1 doctor answer1 doctor weighed in
Dr. Stuart Higano
Cardiology 37 years experience
Spirulina: Spirulina, or blue-green algae, has not been shiwn to be effective for a wide range of ailments, and if contaminated, could be harmful. See http://www.Nlm.Nih.Gov/ medlineplus/druginfo/natural/923.Html for details.
A 42-year-old member asked:

Is it okay to take spirulina?

2 doctor answers2 doctors weighed in
Dr. Steven Charlap
Holistic Medicine 37 years experience
Unclear: Rich in protein, vitamins, minerals, and antioxidants that may help protect cells from damage. It contains b complex vitamins, beta-carotene, vitamin e, manganese, zinc, copper, iron, selenium, and gamma linolenic acid. Can be contaminated with toxic substances called microcystins and absorb heavy metals from water source. Yet, no studies definitively proving health benefits so best to avoid.
A 33-year-old member asked:

Please tell me if there is any side effects while using spirulina externally?

1 doctor answer1 doctor weighed in
Dr. Ed Friedlander
Pathology 44 years experience
No: Spirulina is chlorophyll-containing aquatic bacteria. It's been promoted for decades as being good for everything with essentially zero evidence. It's your money. If you're intrigued by supplements -- and it's interesting and there's some stuff that's real -- get with an evidence-based holist in your community.

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Last updated Mar 9, 2018
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