Ingredients,
Fermentation.
Years of research made us careful with certainty. Here is the useful version: what is in the can, how it is made, and where our knowledge stops.
Notes from a small run.
In 2026 we ran a small experiment on ourselves. It was far too small to support a conclusion about anything, so it doesn't belong on a page about a product. We've published the method, the raw data and the analysis code as a scientific record instead, where it can be read for what it is.
What a day of CGM data can look like
Educational illustration. Not our data.
Alive, and a little variable.
Why the taste shifts from week to week.
Fermentation is slower and more awkward than adding a flavour. We do it because it is how the drink is made, and why it tastes naturally tart.
A live culture is not perfectly identical from one batch to the next. We measure, taste and keep it cold. A slight difference between batches is not a hidden formula change; it is part of making a fermented drink.
The reading behind our curiosity.
Independent, peer-reviewed, and linked so you can check it yourself.
Background reading on fermentation and fibre. This is general science, not evidence about WonderFULL.
Everything below is publicly available research published in independent scientific journals. We did not fund any of it, and we have linked every source so you can read it yourself.
Why dietary fibre is a research field of its own.
Why researchers study dietary fibre and the bacteria that ferment it together
A review of how dietary fibre is defined, how it differs between foods, and why laboratory work on fibre is usually done alongside work on the bacteria that ferment it. It is a map of an active research field, and of how much of it remains open.
Makki, Deehan, Walter & Bäckhed · Cell Host & Microbe, 2018 Source ↗
Food science: how cultures grow on fibre.
Food scientists compared how dozens of cultures grow on fibre.
Out of 86 candidate cultures, the researchers characterised which ones grow well on fibre in a food matrix, and which acids they produce while doing so. It is laboratory food science about fermentation behaviour.
Renye, White et al. · Microorganisms, 2021 Source ↗
Pairing a fibre with a culture changes how the culture ferments.
Food scientists measured how much a culture grows, and how much acid it produces, depending on which fibre it is given. It is formulation research about fermentation, and it is why the choice of fibre matters when you make a drink like this.
Liong & Shah · Journal of Food Science, 2005
Every study above is independent of Yogutide and freely available. It is general science about fermentation and fibre, not evidence about WonderFULL.
This is food, not a treatment.
We are scientists. We would rather be precise than persuasive.
Research on live cultures and fibre is broad and still developing. Research on an ingredient is not the same as a study of WonderFULL itself.
So we do not promise that this drink will change your body or how you feel. We publish the ingredients, say when we do not know, and update this page when we have evidence that belongs to the product itself.
We have written this page to reflect the current state of the science, not to overstate it, and not to hide behind vague language either.
There is a large body of peer-reviewed research on fermented foods and fibre. We read it, and we are careful with it.
Yogutide itself has not been through a clinical trial. The studies here are independent research, not studies of our can.
We do not promise a specific outcome from any ingredient, and we do not tell you what you will feel.
Yogutide is food, not a drug, and not a substitute for medical advice. If you have a diagnosed condition, see your doctor.
Precision is not less caring. It is how we show respect for the person reading.
Ask us directly.
If you want to know why an ingredient is there, how we test a batch, or what we still do not know, write to us. We would rather answer a difficult question than hide behind a polished claim.