Research · Randomised controlled trial
The effects of spirulina on anemia and immune function in senior citizens
Selmi et al. · 2011 · Cellular & Molecular Immunology
Key finding
Spirulina supplementation increased mean corpuscular haemoglobin concentration and improved immune variables including NK cell cytotoxic activity. The most significant improvements were seen in participants who were mildest deficient at baseline.
Why this matters for consumers
One of the few studies examining spirulina in elderly adults using a dose (3 g/day) close to typical consumer usage. The immune improvements are promising, though the study is small.
Study limitations
Small sample; elderly population may not generalise to all adults.
Related studies
Efficacy of daily spirulina supplementation on iron status of pregnant women
Ngo-Matip et al. · 2015
The effects of spirulina on allergic rhinitis
Cingi et al. · 2008
Enhancement of immunity by dietary spirulina
Qureshi et al. · 1996
Iron status of adolescents as influenced by daily supplementation with spirulina
Kapoor & Mehta · 1998
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