Science first. Products later.

Collage of the 2 Kapseln Bitte team and products
Three people, too many studies,
and one rule we never break

we only develop supplements
we take ourselves

The rest follows naturally.

How it started

At 36 I had done everything right. Good food, regular training, enough sleep. And yet. Recovery that dragged on, energy that wasn't really there, skin that kept up, but only just. At the doctor's, everything was unremarkable. So I dug deeper.

At some point I came across two concepts

that changed everything.
Story image
1

The first is nutrient density. For certain vegetables, scientific data have shown measurable declines for decades – driven by breeding for yield, which traded nutrient quality for quantity [1]. The most plausible explanation is unglamorous – we carry these trade-offs on our plates every day.

Product illustration
2

The second is absorption. What matters is not what is on the label – but what your body can actually use. And this is where most products fail. Not because buyers are naive, but because a good formulation takes real biochemistry, not a marketing budget. The problem wasn't me. The problem was the products.

Supplement jars
Three things we have learned
Bowl of vegetables

“But I eat healthily” is the foundation – but not everything.

Good nutrition is beyond question. But for certain micronutrients, even a conscious diet is structurally at a disadvantage today. A finding from nutrition research worth knowing [1].

Label under a magnifier

What's on the label is not what arrives.

A high dose means nothing if the body can't absorb the substance. How well an active ingredient is absorbed depends on its chemical form, its formulation and its interplay with other substances [2]. That is the difference between a good product and an expensive one.

Blood sample tube

“Unremarkable” at the doctor's doesn't mean “optimally supplied”.

A blood value is a snapshot. It tells you what is circulating in your blood right now – not what actually reaches your tissue [3]. An important difference that is rarely explained in practice [4].

Our approach

We don't formulate by the principle “put in as much as possible, done”. Every decision – which active ingredient, which form, which dose – has a scientific reason. And we explain that reason – on the product page, on the blog, on request

Lab report

Every batch is tested independently. Anyone can download the test report – directly on the product page, no detours. What's inside is listed in full. No umbrella terms, no hidden blends.

We follow the legal rules for health claims – because honest communication doesn't need tricks. When research shows something, we explain it. When it doesn't, we say so.

This is what our lab reports look like – every batch, publicly available.

Vegan
Vegan
Allergen-free
Allergen-free
HACCP/ISO facility
HACCP/ISO facility
Refill packaging
Refill packaging
Certificate of analysis available
Certificate of analysis available
2 Kapseln Bitte
Whowe are

No medical degree, no biochemistry degree. Three people who started digging – and at some point never stopped.

What drives us is not a market trend but a simple conviction. When you make something you take yourself every day, you make it differently.

Senior exercising

Supplements you can understand, check and judge for yourself.

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Sources

[1] Bhardwaj, R.L. et al. (2024). An Alarming Decline in the Nutritional Quality of Foods... 10.3390/foods13060877

[2] Pardo, M.R. et al. (2021). Bioavailability of magnesium food supplements... 10.1016/j.nut.2021.111294

[3] Fiorentini, D. et al. (2021). Magnesium: Biochemistry, Nutrition, Detection... 10.3390/nu13041136

[4] Berger, M.M. et al. (2023). Pitfalls in the interpretation of blood tests... 10.1002/ncp.10924