Pharmaceutical

Spirulina: ancient and modern superfood

04 December 2024
Spirulina, often thought to be an alga, is actually a cyanobacterium, a unicellular microorganism capable of oxygenic photosynthesis. Its filamentous structure, composed of billions of aggregated organisms, makes it visible to the naked eye and gives it the appearance of a blue-green alga. Spirulina has millennia-old origins: it was harvested by the Aztecs in Lake Texcoco and served as a vital food source for tribes living near Lake Chad in Africa. However, its global success is relatively recent. In the 1970s, China, now the largest global producer, began large-scale cultivation, transforming spirulina into an internationally acclaimed superfood. The global market in 2023 was valued at around $0.7 billion, with projections indicating it will double in the next decade, driven by the rising demand for natural and sustainable foods.

A concentrate of essential nutrients

This extraordinary cyanobacterium is prized for its unique nutritional content.Spirulina is a complete protein source, containing all essential amino acids, as well as B vitamins, iron, calcium, magnesium, and essential fatty acids. Among its numerous benefits, spirulina stands out for its antioxidant and anti-inflammatory properties, thanks to phycocyanin, a pigment that combats oxidative stress and reduces inflammation. It strengthens the immune system through its vitamins and minerals, helps improve cholesterol levels by reducing "bad" LDL cholesterol and increasing "good" HDL cholesterol, and aids in stabilizing blood sugar levels, making it beneficial for those with type 2 diabetes. Preliminary studies also suggest potential anti-cancer effects and the ability to remove heavy metals from the body, opening exciting possibilities for medical research.

An ally for environmental sustainability

Beyond its health benefits, spirulina is a sustainable choice for the environment. Its cultivation requires limited resources in terms of water and land compared to traditional crops and does not produce significant greenhouse gas emissions. These factors make it ideal not only for combating malnutrition in developing countries but also for projects related to space exploration, where it has already been tested as a food source by NASA. Spirulina is available in various forms, including powder, tablets, capsules, and flakes, which can be easily integrated into daily diets. It can be found in herbal stores, pharmacies, specialized supermarkets, and online, but it is important to choose high-quality, certified products free from additives.

Spirulina in the kitchen: ideas and recipes

In the kitchen, spirulina lends itself to multiple uses. It can be mixed into smoothies, yogurt, or soups or used as a topping for salads and cold dishes. A simple and tasty recipe could be an energizing smoothie with almond milk, banana, and a teaspoon of spirulina, or a quinoa salad with avocado and nuts sprinkled with spirulina flakes. Thanks to its versatility and numerous benefits, spirulina has become a reference point for those seeking to improve their health and contribute to a more sustainable future.

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