Spirulina Tablets: Powder or Pressed?

Pressed tablets are pressed powder, nothing more and nothing less. Same alga, same amount, just without the spoon, the shaker and the pond taste in your glass. Which form suits you comes down to your day: if you eat lunch at your desk, drive to work or work shifts, tablets win. If you blend smoothies anyway, powder works. In short: tablets for on the go and accuracy, powder for the blender. We sell the tablets, and here is why.

Tablets, powder, capsules: what is the difference?

Spirulina is harvested, dried and ground into powder, and because every form starts from that powder, switching between a bag and a tablet changes nothing about the alga itself, only how it reaches you. Our organic spirulina tablets list exactly one ingredient: organic spirulina powder. They are pressed without additives or processing aids, and the filling is done in Germany.

• Tablets: counted out, unobtrusive in taste, easy on the go. 12 a day equal 6,000 mg.
• Loose powder: flexible in amount and fine in a smoothie, but the algae taste stays. You dose by feel or with a scale.
• Capsules: usually smaller amounts per piece, often with a shell and sometimes with additives.

A spoon is an imprecise measure, because powder weighs differently depending on grind and packing. If you use powder, weigh it. More on that in our guide to dosing powders.

When tablets are the better choice

Three situations speak for them. First, taste: spirulina tastes strongly of alga, and customers say so openly. In our reviews tolerability scores 4.78 out of 5. Tablets close exactly that gap, because you take them with a sip of water and the algae taste that clings to the glass an hour after a smoothie never appears. Second, daily life: tablets fit in a jacket pocket and a lunch box. Third, accuracy: you count out four, done.

Powder wins where you stir anyway. In a green smoothie, in porridge, in a dressing. For that we have a spirulina smoothie recipe in which the alga hardly stands out between fruit and liquid if you stir it in slowly.

What is in our organic spirulina tablets

The spirulina grows in Darwin in northern Australia, in freshwater cultures that are checked daily. It is harvested gently, dried at temperatures around 40 °C, then ground to powder. Pressing and filling take place in Germany, without middlemen. Every batch goes to an independent laboratory, and you can find the latest report as a file on the product page.

The numbers, so that you can compare with other tubs and bags on the daily price rather than the tub price: 600 tablets of 500 mg each, recommended three times a day with four tablets, so 12 tablets or 6,000 mg of organic spirulina. That lasts 50 days and costs €0.38 a day. Common recommendations for spirulina range between 1.5 and 6 grams daily. Our tablets are built for the upper end of that range: they are high-dose.

A word on Hawaii, because people search for it so often: Hawaii is an origin argument of individual suppliers. Our alga comes from Darwin. What matters is not the name of a place on the pack, but whether the supplier describes the cultivation clearly, discloses harvest and pressing, and shows a lab report for every batch that you can read yourself.

How to take the tablets

Four tablets three times a day, unchewed, with plenty of fluid. A pattern that works: four at breakfast, four at lunch, four in the evening. If you are new to it and have a sensitive stomach, start with one meal and build up to the full amount over a few days. Chewing is pointless unless you like algae taste, and if large tablets give you trouble, swallow the four one after another with a sip each instead of all at once.

Do not exceed the recommended daily amount. Store cool and dry, out of the sun.

A day with tablets: three everyday scenes

Office: four tablets sit next to the muesli bowl in the morning, four go into the lunch box, four stand beside the glass of water in the evening. That was it. Really. Shift work: you plan intake around your meals, not the clock, because after an early shift your breakfast is simply at 1 pm. Vegan kitchen: here spirulina adds iron and plant compounds to the plate, and since there is no capsule shell, the ingredient list stays as short as it can be. So you spread the daily ration however you like, as long as each portion comes with a meal and a large glass of water.

And what about blue spirulina powder?

Blue powder is not the same product in another colour. It is an extract of the blue pigment phycocyanin that the alga contains. The pigment is released from the biomass in several steps and purified until a finely ground, almost tasteless powder remains. It is used mainly to colour food and drinks blue naturally. With the whole green algae powder, which brings protein, iron and chlorophyll along with the pigment, it has little in common nutritionally. We do not sell blue powder. If you want spirulina as a nutrient source, green tablets are the right choice.

Spirulina and chlorella: when the mix makes sense

Chlorella is the second big freshwater alga. Our spirulina chlorella tablets contain both in a 50 to 50 ratio: at 12 tablets a day that is 3,000 mg of organic spirulina and 3,000 mg of organic chlorella. The spirulina comes from Darwin, the chlorella from an algae centre in Vietnam that works with photobioreactors. The pack holds 500 tablets, a good 41 days at €0.46 a day.

The mix fits if you want both algae and not two tubs in the cupboard that you would have to count, order and use up separately. Plain spirulina fits if you want the higher amount of a single alga. You will find the detailed comparison of both algae in our algae guide.

What you can realistically expect from spirulina

According to the product page, spirulina contains 60 to 70 percent protein. By calculation, 6 g contain roughly 3.6 to 4.2 g of protein. That is a side dish to a plant-based diet, not a protein shake, and you should plan it that way.

One nutrient that counts: iron. Iron contributes to the reduction of tiredness and fatigue. Iron contributes to normal oxygen transport in the body. Iron contributes to the normal function of the immune system. That holds for iron from any source, including the alga.

A point many suppliers leave out: spirulina is not a reliable source of vitamin B12. Analyses of spirulina tablets found that a large share of the B12 is in a form humans cannot use. Vegans are better off covering B12 another way.

Who should ask first

In short: for healthy adults spirulina is a food. Still, there are exceptions. With phenylketonuria spirulina is not suitable, because the alga contains phenylalanine. Allergic reactions are possible. Interactions with medicines are described, for example with diabetes drugs, immunosuppressants and anticoagulants. If you take such medicines, or are pregnant or breastfeeding, clear it with your doctor first. Algae products are also not regulated uniformly, so quality is a question of the supplier. That is why the lab report counts, and with algae it says more than any seal on the front of a tub whose contents you do not know.

What to check when you buy

The choice online is huge, the differences hide in the small print, and anyone comparing spirulina across five suppliers gets five different answers to the same questions. Five points sort it quickly.

• Ingredient list: only the alga, no binders, no release agents.
• Organic quality: controlled cultivation instead of loose goods without proof.
• Origin: country and cultivation site are named on the page, and “superfood” alone does not count.
• Lab report per batch: ask for it, do not hope for it.
• Price per day: divide the tub by the days, do not compare tub prices.

Matching Products from Scheunengut

For everyday life without a spoon: the organic spirulina tablets with 6,000 mg of organic spirulina per daily amount, from controlled cultivation in Darwin, pressed without additives, filled in Germany and lab-tested. 600 tablets last 50 days. If you want both algae in one pack, take the superfood algae, spirulina and chlorella in a 50 to 50 ratio, also in organic quality.

Scheunengut has existed since 2012, without investors, with a focus on pure raw-material quality. That is why both products state what is inside, where it comes from and how it is tested. We do not sell loose spirulina powder; tablets are our form.

Frequently Asked Questions (FAQ)

How do spirulina tablets work?

Spirulina is a food with protein, iron, chlorophyll and plant compounds. For iron there are authorised statements: it contributes to the reduction of tiredness and fatigue and to normal oxygen transport in the body. We promise nothing beyond that.

How many spirulina tablets should I take a day?

Our recommendation: four tablets three times a day, so 12 pieces or 6,000 mg. Take them unchewed with plenty of fluid, ideally with meals.

How do I take spirulina powder?

Stir it into a smoothie, yoghurt or juice and weigh the amount. Common amounts are 1.5 to 6 grams a day. If you dislike the taste, take tablets.

How do I recognise good spirulina tablets with a traceable origin?

By an ingredient list with only the alga, organic quality, a named growing region and a lab report you can inspect. With us that means Darwin in Australia, pressing without additives and a report for each batch.

What is the difference between blue and green spirulina powder?

Green powder is the whole dried alga. Blue powder is an extract of the pigment phycocyanin and is used mainly for colouring. For nutrients, choose green.

What experiences do people have with organic spirulina tablets?

Our tablets have 73 reviews averaging 4.59 out of 5 stars. Tolerability is 4.78, quality 4.82.

Can I take spirulina and chlorella together?

Yes, and conveniently. Our mix contains both algae in equal parts in one tablet, so you do not have to combine anything. Dosing is the same as for the spirulina tablets: four pieces three times a day.