U.S. doctors online nowAsk doctors free
A 22-year-old female asked:

are chlorella and spirolina safe?

1 doctor answer2 doctors weighed in
Dr. Martin Raff
Infectious Disease 56 years experience
Algae: Chlorella and spirolina are green and blue=green algae used as dietary supplements. Am not aware of any known direct toxicities, but persons with seafood allergies and those with hyperthyroidism should avoid these. The more important question is are they really necessary? Only you can determine whether you really need these. Only your wallet is likely to be hurt.
Dr. Ed Friedlander
Pathology 44 years experience
Exactly. Thanks for another good answer, Dr. Raff!
Feb 26, 2013

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership

Similar questions

A 22-year-old female asked:

Is chlorella safe?

2 doctor answers3 doctors weighed in
Dr. Ed Friedlander
Pathology 44 years experience
If the label is true: Chlorella is a common green pond scum, with some nutritional value. Some folks have packaged it as a nutritional supplement and will sell it to you. The "superfood", anti-cancer, immune-enhancing and similar claims are all made up (breaks no law, strangely.) if the bottle contains what it says it does (and in this shadow world it often doesn't), you're safe. It's your money.
Dr. Martin Raff
Dr. Martin Raff commented
Infectious Disease 56 years experience
As Dr. Friedlander so cogently points out, because it is sold as a food supplement and not a medication it is immune from regulation by FDA. Claims made may be totally specious and unsupported by controlled studies. If there were significant benefits don't you think this would have been appreciated by the research community?
Feb 26, 2013
Urbana, OH
A 45-year-old female asked:

Is it harmful to take chlorella longer than 2 months. Isn't that about how long it would take to get in your system and start working?

1 doctor answer2 doctors weighed in
Dr. Andrew Seibert
Gastroenterology 35 years experience
No benefit: It really doesn't matter how long you take Chlorella, because there is no scientific evidence to support its effectiveness for prevention or treating cancer or any disease in humans. You would probably be better off using the money to buy healthy nutritious food as a basis of a good diet. Adding Chlorella will not help though. Good luck.

Related questions

A 42-year-old female asked:
1 doctor answer1 doctor weighed in
A 31-year-old male asked:
1 doctor answer3 doctors weighed in
A 79-year-old female asked:
1 doctor answer1 doctor weighed in

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership
Last updated Dec 21, 2020

People also asked

Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$30 per visit with
membership

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.