Spirulina – A Miracle Algae?

The blue-green algae Spirulina should not only strengthen the immune system and slow down the aging process but also prevent cancer. PraxisVITA explains whether there is any truth to these promises.

Original distribution area

Central America, Southeast Asia, Africa, and Australia


Spirulina contains beta-carotene, a precursor of vitamin B12 and vitamin E. The blue-green algae are also rich in calcium, iron, and magnesium.


Animal studies indicate that blue-green algae can lower your elevated level of “bad” LDL cholesterol. There was also a positive effect on blood pressure. So far, however, there are no meaningful studies that confirm these results. It has also not been proven that spirulina slows down the aging process or prevents cancer.


The taste of spirulina is usually described as taking some getting used to: In powder form, the aroma is slightly reminiscent of fish. In most products, the taste is changed by adding other foods.

This is how spirulina tastes best

Spirulina is taken in tablet or powder form. The advantage of the powder is that you can stir it into smoothies, for example, and thus mask the taste.

Beware of…

… well-stocked iron stores: If you are not currently suffering from iron deficiency, you should discuss the intake of spirulina with a doctor. Just five grams of blue-green algae cover almost the daily requirement of iron for an adult. Overdose can cause abdominal pain, constipation, or nausea.


At 60 percent, spirulina has a fairly high proportion of protein – but the products available for it, even in the highest possible dosage, cannot even begin to cover the daily protein requirement. Good alternatives include lean meats like chicken and eggs. Avocado, for example, helps to build up the immune system: it contains a lot of vitamin E and vitamin B6. Both help the body produce immune and scavenger cells that fight invaders such as viruses and bacteria. Avocados should therefore be on the menu two to three times a week. Cancer cannot be prevented directly, but a healthy lifestyle with a balanced diet, light exercise, and little stress can reduce the risk. These factors can also influence the aging process.

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Written by Crystal Nelson

I am a professional chef by trade and a writer at night! I have a bachelors degree in Baking and Pastry Arts and have completed many freelance writing classes as well. I specialized in recipe writing and development as well as recipe and restaurant blogging.

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