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Vitamin U · S-methylmethionine

For stomachs that have tried everything.

The stomach lining compound first found in cabbage. Created by a nutritionist who had gastritis for almost a decade.

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Vitamin U S-methylmethionine 500 mg supplement bottle
30-day money-back guarantee
Third-party tested
One active ingredient
Vegan capsule
60 capsules per bottle
Free US shipping
Before and after illustration: a thin mucus layer with acid reaching the stomach lining, then a thicker mucus layer with vitamin U in it and less acid reaching the lining

Why vitamin U

What it does for your stomach.

1
Supports the stomach's natural mucus layer.*
2
Gentle on your stomach. Cabbage juice brings fiber, gas and goitrogens.
3
One capsule, 500 mg, about a liter of cabbage juice.
Vitamin U S-methylmethionine 500 mg supplement bottle

S-methylmethionine

Vitamin U, 500 mg

· 60 capsules

Reviews

What people say.

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"I have had stomach issues on and off for a long time. Like too long. I tried this and I was honestly blown away. Highly recommend."
Sean S.
Verified buyer
"The first supplement that I can really say made the difference. I felt better that same day, the pain was significantly less, the nausea subsided. Already placed my second order."
Marina M.
Verified buyer
"Two weeks in and I feel better than I have in months. No pain between meals and my appetite is coming back."
David H.
Verified buyer
Nadya, founder of VitaminYOU

The founder

I'm Nadya. I had gastritis for almost a decade.

I joke about how desperate you have to be to try cabbage juice. After years of chronic gastritis, and after trying every diet, supplement and medication on the list, I had reached that point. I bought a juicer, made a mess of my kitchen, and to my surprise the flare eased within hours.

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. The problem was I couldn't find a company I trusted to buy it from, so I created one myself.

VitaminYOU exists because nobody should spend a decade looking for something that was out there all along. I still take it every day.

Nadya, certified nutritionist, founder

Read the whole story

The ingredient

From cabbage to capsule.

Half a cabbage and a glass of cabbage juice
1
Cabbage

Raw cabbage juice has been used for the stomach for generations, and studied all over the world.

The S-methylmethionine molecule
2
The compound

The part that works is S-methylmethionine, vitamin U, which supports the stomach lining.*

One VitaminYOU capsule
3
The capsule

The same compound, made pure, without the fiber and goitrogens that come with the juice. 500 mg in one capsule.

75 years of history.
See the research
1949, USA

Discovered in raw cabbage juice by Dr. Garnett Cheney at Stanford.

Japan

Sold over the counter as Cabagin for 65 years. Still on shelves.

Eastern Europe

Decades of published studies. Sold today as Doctovit.

Today, USA

Available as a dietary supplement, VitaminYOU.

You've been here before.

You've had the scope. You've taken the medication. You've changed what you eat. You've tried the supplements, the natural remedies, the things you found in a forum at 2 a.m. Some things helped a little, for a while. Nothing held.

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

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30-day money-back guarantee · Free shipping in the US

FAQ

Frequently asked questions.

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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 mucus layer of the stomach
  • Acts as a methyl donor and antioxidant
  • Helps maintain stomach 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 with globally sourced ingredients, in cGMP-compliant facilities. Every batch is tested by a third-party lab.

30-day satisfaction guarantee. If you're not happy for any reason, send us a message within 30 days of delivery and we'll issue a full refund. You don't need to return the bottle.