Spirulina and its antioxidant, immune and anti-inflammatory effects in animals and people
What it found
In clinical trials with people, spirulina prevented muscle damage during exercise stress and changed immune signals.
It also boosted antioxidant enzymes and reduced cell damage in animal and lab studies.
What they found
Studies in people
Muscle protection during exercise
Clinical trials in people showed that spirulina prevented skeletal muscle damage caused by exercise-related oxidative stress.
Immune and inflammation responses
Trials in people found that spirulina encouraged antibody production. It also adjusted genes that control immune signals to change inflammatory responses.
Animal and lab studies
Antioxidant enzyme activity
Spirulina turned on antioxidant enzymes inside cells and raised levels of superoxide dismutase and catalase. It also mopped up free radicals and reduced damage to fats and DNA in lab and animal tests.
Key active molecules
Phycocyanin and beta-carotene appear to be important parts of spirulina behind these effects. Spirulina also influenced several specific cell signalling pathways in lab work.
Studies in people and animals
Dose limit for antioxidants
There seems to be a dose level beyond which taking more spirulina does not add extra antioxidant benefit.
What the authors conclude
- They suggest spirulina has potential uses as a treatment because of its antioxidant, immune and anti-inflammatory actions.
- They note that scientists do not yet fully know the exact molecular steps behind these effects.
- They hope their overview will give researchers new ideas for future studies.
How it was done
Oxidative stress and poor immune function are linked to many human diseases, including heart problems and high blood pressure. The authors wanted to see if the antioxidant and immune effects of spirulina could matter for human health.
The authors gathered and examined existing research on spirulina in both animals and people. They looked at how it affects oxidative stress, immunity and inflammation. They also reviewed its commercial and regulatory standing in various countries.
What it can’t tell you
- We summarised it from the abstract only.
- Because this is a summary of past research, it cannot prove that spirulina causes these benefits in everyday life.
- Lab and animal results might not match what happens when people eat spirulina.
- Scientists do not yet know the exact way spirulina works inside the body.
Who paid
- Authors work at
- Yangtze University, China; University of Hradec Kralove, Czech Republic; University of Medicine and Pharmacy Grigore T. Popa, Romania
The paper
- Title
- The antioxidant, immunomodulatory, and anti-inflammatory activities of Spirulina: an overview
- Type
- ReviewThe authors read earlier studies and describe what they found. It isn’t a new study.
- Evidence
- Studies in people · animals · lab
- Summarised from
- Abstract only
- Cite
- Wu Q, Liu L, Miron A, Klímová B, Wan D, Kuča K (2016). The antioxidant, immunomodulatory, and anti-inflammatory activities of Spirulina: an overview. Archives of toxicology. doi:10.1007/s00204-016-1744-5PubMed 27259333DOI
Summary written 30 Sep 2026. Check it against the paper before it changes what you eat. How we summarise papers · Report an error