Vitamin U
A natural ingredient derived from cabbage juice that may support the digestive system, help protect the stomach lining and maintain an optimal pH level in the stomach.
How vitamin U works
Vitamin U contains methyl-methionine sulfonium chloride, a derivative of the amino acid methionine (a dehydrated form of cabbage juice). Its primary role is to maintain an optimal pH level in the stomach by helping to regulate the secretion of gastric juices.
What exactly is vitamin U? +

Who Vitamin U is intended for
Japanese quality, manufactured in Slovakia
With Vitamin U, we rely on a high-quality raw material. We import the active ingredient – methylmethionine sulfonium chloride (MMSC) – directly from Japan, which has many years of experience with this substance and has long specialised in its production and use in digestive-support products. The final product is then manufactured in Slovakia.
Ingredients
Frequently asked questions
What is vitamin U?+
Vitamin U is not a conventional vitamin but a substance called methyl-methionine sulfonium chloride – a derivative of the amino acid methionine. It occurs naturally in cabbage, leafy green vegetables and egg yolk. It was named by Dr. Garnett Cheney in 1952.
How does vitamin U affect the stomach?+
It may help maintain an optimal pH level in the stomach and regulate the secretion of gastric juices. It is thought to help protect the stomach lining and support the overall function of the digestive system.
How much of the active ingredient does one capsule contain?+
One capsule contains 500 mg of the active ingredient methyl-methionine sulfonium chloride.
How should Vitamin U be taken?+
Take 1 to 2 capsules once daily with a meal. Swallow the capsules with a sufficient amount of water so that they reach the stomach, where they gradually break down and release the necessary substances.
Who is Vitamin U suitable for?+
It is suitable for people aged 18 and over with sensitive stomachs – for example, in cases of stomach and intestinal irritation, as a preventive measure for people prone to gastric ulcers, when taking medications that affect stomach acid, or in cases of reflux. It is also suitable for people with diabetes or coeliac disease and for vegans.
Is Vitamin U suitable for reflux and excessive acidity?+
Yes, it is also suitable in cases of excessive stomach acid production and reflux, as it may help maintain an optimal pH level in the stomach and protect the stomach lining.
Is Vitamin U suitable for Helicobacter pylori?+
Vitamin U may be a suitable supplement for stomach problems associated with the bacterium Helicobacter pylori, as it helps protect the stomach lining and maintain an optimal pH level. However, it does not replace medical treatment – if you have a confirmed Helicobacter pylori infection, always follow your doctor's instructions.
Is the product suitable for vegans and people with coeliac disease?+
Yes. Vitamin U is vegan, gluten-free, lactose-free and soy-free, and is also suitable for people with diabetes. The capsule is plant-based.
Where does the active ingredient come from?+
The active ingredient methyl-methionine sulfonium chloride is a derivative of the amino acid methionine and is a dehydrated form of cabbage juice – it is therefore of natural origin.
How long can I take Vitamin U?+
This food supplement is intended for longer-term use when the recommended dosage is followed. If you have specific health problems or take medication, consult your doctor or pharmacist.
Does Vitamin U replace treatment for stomach problems?+
No. A food supplement is not a substitute for a varied and balanced diet, a healthy lifestyle or medical treatment. Seek medical advice if you experience persistent or serious stomach problems.





