Blue-green algae, without additives.
Spirulina tablets
Available at Nature HeartLaboratory testedFinal products tested in Dr. Born's laboratory
Buy directlywith the partner, without detours
Independentno pharmaceutical company
What tradition tells us about spirulina
Tecuitlatl
The Aztecs scooped the blue-green substance from Lake Texcoco and called it Tecuitlatl. Spanish chroniclers saw it in the markets of Tenochtitlan.
Dihé from Lake Chad
To this day, the Kanembu people of Lake Chad skim off the blue-green algae and dry it in the sun into flatbreads called Dihé. Crumbled, it ends up in sauces.
The ritual
A teaspoon of the deep green powder disappears into a smoothie or yogurt. The taste is reminiscent of the sea and fresh grass.
The profile in the Botanical Archive: benefits, ingredients, home remedies, Ayurveda & TCM and all sources.
More about spirulina in the Botanical Archive →Spirulina: a cyanobacterium from alkaline waters, used as food for centuries, from the Aztecs to Lake Chad.
At a glance
- Organism: Arthrospira platensis, a cyanobacterium („blue-green algae“)
- Form: Tablets made from dried powder
- Characteristic: approximately 60 % protein, blue-green pigment phycocyanin
- Quality feature: Cultivation in controlled environments with testing for heavy metals and microcystins
The B12 fallacy: Spirulina is often advertised as a vegan source of vitamin B12. In reality, it contains mostly B12 analogs, which the human body cannot utilize and which can even distort test results. Those who follow a vegan diet need real B12, not algae.
Folk medicine, tradition, research
What the Aztecs and the peoples around Lake Chad used Spirulina for, what it really contains, and what research says about it.
What's inside
Dried spirulina, pressed into tablets, without binders, provided the manufacturer operates ethically. Origin and certificates of analysis are the most important purchasing criteria here.
How it is taken
Take the tablets with water according to the manufacturer's instructions, ideally starting gradually so that the digestive tract can get used to the algae.
Good to know
- Spirulina is taboo for people with phenylketonuria (PKU) because it is rich in phenylalanine.
- If you have an autoimmune disease, discuss taking the medication with your doctor beforehand.
- Only buy tested products from controlled cultivation: Products from open waters may be contaminated with microcystins.
- Not suitable for pets. We have our animal health section for that.
As always, dietary supplements are a supplement, not a substitute for good food and not a substitute for medical advice. If you are pregnant or breastfeeding, have children, pre-existing medical conditions, or are taking long-term medication, it is advisable to consult your doctor beforehand.
Available from our partner
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Advertisement · Affiliate link: If you purchase through this link or using our code, we receive a commission from the provider. The price remains the same for you; in fact, it's even cheaper using our button. Nature Heart is an independent brand of Nature Heart NEM GmbH & Co. KG, Nidderau.
Why this partner
Nature Heart
We only recommend manufacturers and distributors that we have reviewed and that do not belong to any pharmaceutical company.
- Laboratory testedFinal products tested in Dr. Born's laboratory
- Organic inspectionInspection body DE-ÖKO-007 for organic products
- DisclosedAnalyses available as PDFs on every product page
- IndependentNo pharmaceutical company behind it
Questions
Frequently Asked Questions
Where do I buy Spirulina tablets ?
Directly from Nature Heart. The button above will take you to the partner's product page; shipping and invoicing will be handled by them. The price remains the same for you.
What was spirulina used for in the past?
We explain this in detail in the Botanical Archive: what folk medicine used Spirulina for, what research says about it today, and with all sources. View portrait →
How do you choose your partners?
We check ownership, origin, organic certification, and, where available, laboratory analyses. We do not accept partners belonging to a pharmaceutical company.
