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You know what a
flare feels like.
So do we.

Founded by someone who uses it.

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What is Vitamin U

The stomach lining compound with 70 years of research behind it.

Vitamin U, the active compound in cabbage juice.

S-Methylmethionine

Vitamin U / 500 mg per capsule

*Supports stomach lining health.

60 capsules per bottle. One active ingredient. Formulated by a holistic nutritionist who takes it daily.

US-made Lab tested Vegan 30-day guarantee
$49

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You've been here before.

A gastritis flare is not just uncomfortable. It's the nausea that stops you from eating for days. The stomach pain that makes it hard to get off the couch. The anxiety that settles in when your body won't cooperate, and the low mood that comes along with it.

You've had the scope. You've taken the medication. You've changed what you eat. You may have tried other supplements, natural remedies, things you found in a forum at 2 a.m.

Some things helped a little. For a while. Nothing stuck.

We've been there too. That's exactly why VitaminYOU was created.

A traditional remedy.
Validated by science.
Used as medicine worldwide.

Centuries of traditional use

Cabbage for the stomach

In Eastern Europe and across Asia, cabbage was used to settle the stomach. Nobody knew why it worked. Only that it did.

1950 · Stanford University

The active compound is identified

Dr. Garnett Cheney isolates the compound and names it Vitamin U. U stands for ulcers. His trials are published in peer-reviewed journals.

1950s onwards · Global

Other countries act on the research

Decades of published studies. The compound enters clinical practice in Japan and Eastern Europe.

Japan

Cabagin

Approved OTC medication · Kowa Pharmaceutical

Ukraine

Doctovit

Used clinically for erosive gastritis

United States

Stays a dietary supplement in the US

Natural compounds cannot be patented. Without a patent, the economics of FDA drug approval don't work. S-methylmethionine stayed a dietary supplement. Quietly studied, rarely talked about.

Today · United States

VitaminYOU

One compound. 70 years of research. One bottle built around it.

Vitamin U capsule

Ingredients

What's in the bottle

S-Methylmethionine (Vitamin U), 500 mg per capsule.

One active ingredient. That's it.

60 capsules per bottle. Take one to two capsules per day, with a meal.

$49

Free shipping on all US orders

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"I joke about how desperate you have to be to try cabbage juice. After years of chronic gastritis, I had reached that point. So I tried it, and it worked. Not in the way supplements usually 'work,' where you take it for a week and convince yourself something might be happening. It actually worked.

As a holistic nutritionist, I couldn't leave it at that. I went looking for why, and the answer was a compound called S-methylmethionine, or Vitamin U. Finding a supplement form of it took real digging. When I did, it worked even better than the juice, and faster.

I built VitaminYOU because nobody should spend a decade looking for something that was out there all along."

Nadya, Holistic Nutritionist · Founder

Quick answers

Common questions

Vitamin U is a simpler name for S-methylmethionine. S-methylmethionine occurs naturally in raw cabbage and other brassica vegetables.

It's not technically a vitamin. Researchers in the 1950s called it "Vitamin U" while studying it. The U stands for ulcers.

S-methylmethionine supports stomach lining health. Your stomach is lined with a layer of protective mucus. S-methylmethionine supports the cells that maintain this lining. Learn more →

One to two capsules per day, with a meal. Each bottle has 60 capsules.

  • Supports stomach lining health
  • Helps maintain the protective mucosal layer of the stomach
  • Acts as a methyl donor and antioxidant
  • Supports normal digestive comfort

VitaminYOU is for adults who want to support their stomach lining health. It is a dietary supplement, not a medicine.

They work the same way. S-methylmethionine is the active compound in raw cabbage juice. The capsule form is more concentrated and consistent. No juicing required.

S-methylmethionine has been studied since the 1950s, with research from the US, Japan, and Eastern Europe. Browse the Vitamin U research database →

Yes. VitaminYOU is manufactured in the USA in GMP-certified facilities. Every batch is tested by a third-party lab.

Want to go deeper? We write about Vitamin U, the research behind it, and stomach health.

Read the blog