Spirulina
Supplement
Spirulina is a type of algae that is often used as a dietary supplement. It's rich in nutrients like protein, iron, and vitamins, and is sometimes used to support heart health and reduce inflammation.
Source: EFSA assessment
Spirulina is generally considered safe for consumption by the European Food Safety Authority (EFSA), but high doses may cause gastrointestinal side effects in some individuals.

The Benefits and Side Effects of Spirulina
NutritionFacts.org
r/u_True_Garen
missing comment from https://new.reddit.com/r/Supplements/comments/1f31nwb/how_much_is_too_much_and_often_with_nac/?sort=old
Meta-Analysis of the Efficacy of Spirulina Intervention in Mitigating the Negative Impact of Heat Stress on Production Physiology and Health Indices of Broilers.
Mbajiorgu CA, Ogbuewu IP, Mabelebele M
2026
Read on PubMedLast updated: May 16, 2026