Spirulina

Filamentous cyanobacteria (blue-green algae) cultivated since ancient times in Mexico and Africa and used for human and animal consumption. It contains proteins, essential fatty acids, carotenoids, mucilage, mineral salts (iron) and vitamins A, B and E. ^{(MedlinePlus 2015, Deng 2010}).

At the date of the last update, we found no published data related to breastfeeding.

Maternal consumption can cause breast milk to turn greenish in colour. ^{(Naor 2019)}

It is a very expensive dietary supplement and there is insufficient evidence of any of its claimed health properties, nor is it a good source of vitamin B₁₂. ^{(Calella 2022, MedlinePlus 2015, Watanabe 2007)}

It is important to ensure that it comes from reliable sources and has quality controls in place to prevent contamination with heavy metals and liver toxins such as microcystins and cyanotoxins ^{(Galinytė 2023, Tito 2022, Lyon 2018, MedlinePlus 2015, Vichi 2012, Heussner 2012, Deng 2010, Dittmann 2006)}

Dietary supplements containing algae such as spirulina or chlorella are the food group with the highest concentration of arsenic.^{(Galinytė 2023, EFSA 2014, Hedegaard 2013)}

Moderate consumption from reliable sources would pose a low risk during breastfeeding, although it is unnecessary and is not recommended by some organisations. ^{(MedlinePlus 2015, Royal Women’s Hospital Victoria 2013)}

See below the information of this related product:

• Chlorella (Fairly safe. Mild or unlikely adverse effects. Compatible under certain circumstances. Follow-up recommended. Read Commentary.)