Does Spirulina Immune Function Randomized Trial work?

The current Migaku evidence database contains 2 reusable source documents for Spirulina Immune Function Randomized Trial. This answer focuses on strength of evidence and what the studies can or cannot prove. - Arthrospira platensis Lestingi et al., 2024 Sahil et al., 2024 Chwil et al., 2024 Dimopoulou et al., 2025 Sabat et al., 2025 Abdel-Wahab et al., 2023 Sarker et al., 2022 Spirulina () is a filamentous, photosynthetic cyanobacterium found in freshwater and marine environments of tropical and subtropical regions. [Isazaei Arezoo (2025); evidence level 4] - Environmental conditions were maintained at 32 &#177; 1.5&#176;C and 60 &#177; 10 % relative humidity during the first week and gradually reduced to 20&#176;C by the end of the experiment. [Isazaei Arezoo (2025); evidence level 4] - Body weight gain increased with Spirulina inclusion, showing a significant linear response (< 0.001) and a tendency for a quadratic response (= 0.056). [Isazaei Arezoo (2025); evidence level 4] - Abd El-Hack et al., 2022 The global rise in population and the resulting threat to food security have intensified the need to enhance animal nutrition strategies in poultry production. [Isazaei Arezoo (2025); evidence level 4] - Results The results showed that compared to the MA group, the feed-to-meat ratio in the CM and DM groups was significantly reduced. [Yi X (2025); evidence level 4] Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording. This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.