What are the benefits of spirulina?

Spirulina (botanical name: Arthrospira platensis) is a blue-green micro-algae, originally found in the warm, fresh waters of the inter-tropical belt.

The term "micro-algae" is actually shorthand for a family of filamentous cyanobacteria with exceptional nutritional and antioxidant properties, thanks to their protein, vitamin, mineral and phycocyanin content.

According to the World Health Organisation (WHO), they are "the best food for humanity in the 21st century". WHO also reports that they are capable of combating malnutrition, while having a relatively low impact on the planet's health.

In this article, you will find out all about the many benefits of spirulina, as well as its effects and whether it should be taken as a food supplement or used in cosmetics.

By Lou Dumas

Updated on 7/10/2026Reading time: +4 min.

Spirulina: definition and origins

What is spirulina?

Spirulina (botanical name: Arthrospira platensis) is a superfood. It is characterised by easy assimilation and a multitude of benefits. It is an exceptional source of protein, surpassing red meat. It also offers a variety of nutrients, including D, K, B1, B2, B3, B6, B8, B9 and B12 vitamins, carotenoids such as beta-carotene, iron, minerals, trace elements, gamma-linolenic acid, chlorophyll and phycocyanin.

Spirulina is a blue-green micro-algae. Also known as cyanobacteria, it is a primitive micro-organism that appeared among the first forms of life on Earth. It is characterised by its spiral shape, hence its name. In the wild, it is found in India, Mexico, Africa and Asia. However, Europe and the United States have developed specialised farms to grow it.

If you choose to eat it, pay close attention to the quality of the environment and certifications, as its cultivation is sensitive to contamination by pollutants, particularly heavy metals. To find out more about food supplements, see our dedicated guide.

Article written by Lou Dumas, Naturopath

Lou graduated from HEC in 2012. She gained ten years of experience in marketing for cosmetics and perfumes before becoming an independent consultant in this field. She recently completed a three-year naturopathy program at the European College of Holistic Naturopathy (CENATHO, Paris) with the goal of supporting the physical and mental health of the people she works with through a holistic approach to lifestyle.