The goatforyour gutThe fiber brand

Grandmawasright.

There is such a thing as the right fiber.

GOAT is built on psyllium, one of the most studied fibers there is. Formulated by a gastroenterologist and 2 scientists. In a stick, a jelly and a gummy.

Gastroenterologist formulated2 studied fibers0 inulinEvery dose on the label
Coming early 2027. First 1,000 get first access. Signing up means emails from GOAT. Privacy.
A grandmother laughing in her garden
Doctor
formulated.
Goat approved!
The goat

Formulated by a gastroenterologist from Mass General and 2 scientists trained at MIT and Harvard. Built on published research.

Read the science

3 ways to take it. Flip one.

You didn't quit fiber. The fiber quit on you. Every card has us versus them on the back. Go look.

Doctor Goat

"Them" is 3 well-known products per format, read off their own labels, October 2026. Our numbers post as each formula locks.

95% of adults are fiber deficient. The other 5% are goats.

100 adults. Spot the ones hitting their fiber.

Do the math.

Tap what you ate today. Tap again for seconds. The recommendation is 25 grams.

Fiber per serving from USDA FoodData Central. Your plate may vary. See the whole Fiber Index.

0g
0You, probably. 1525

Nothing yet. Interesting strategy.

The science.

What's published on fiber, and on the 2 fibers in GOAT. Every source is linked.

Formulated by
Yousef Badran, MDGastroenterologist, Massachusetts General Hospital
Omar Abudayyeh, PhDFaculty, Harvard Medical School. Trained at MIT
Jonathan Gootenberg, PhDInvestigator, Beth Israel Deaconess. Harvard PhD, trained at MIT
01
Most adults fall short.

More than 90% of women and 97% of men in the US don't meet the recommended intake for dietary fiber.

Dietary Guidelines for Americans, 2020 to 2025. USDA and HHS. Source
02
25 to 29 grams is the mark.

A review covering 58 clinical trials and 135 million person-years of data found outcomes were best at 25 to 29 grams of fiber a day.

Reynolds et al. Carbohydrate quality and human health. The Lancet, 2019;393:434-445. Source
03
Not all fiber acts the same.

What a fiber does in the gut comes down to its physical properties. Whether it dissolves, whether it forms a gel, and how readily gut bacteria ferment it.

McRorie and McKeown. Understanding the physics of functional fibers in the gastrointestinal tract. J Acad Nutr Diet, 2017;117:251-264. Source
04
Inulin made the most gas. Psyllium cut it.

In a randomized crossover trial using MRI, inulin caused the largest rise in colonic gas. Taking psyllium with it reduced that gas.

Gunn et al. Psyllium reduces inulin-induced colonic gas production in IBS: MRI and in vitro fermentation studies. Gut, 2022;71:919-927. 19 patients. Source
05
Inulin tolerance depends on dose.

In healthy adults, chicory inulin and oligofructose mildly increased GI symptoms. Flatulence was reported most, then bloating. The higher oligofructose dose did worst.

Bonnema et al. Gastrointestinal tolerance of chicory inulin products. J Am Diet Assoc, 2010;110:865-868. 26 adults. Source
06
Sunfiber feeds gut bacteria.

In healthy volunteers taking partially hydrolyzed guar gum, the fiber in Sunfiber, the makeup of the gut microbiota shifted and short-chain fatty acids including butyrate and acetate went up.

Reider et al. Prebiotic effects of partially hydrolyzed guar gum on the composition and function of the human microbiota. Nutrients, 2020;12:1257. 20 adults. Source
Doctor Goat

None of these studies were run on GOAT. They're the published research on fiber and on our 2 ingredients. Our full panel posts at launch. Affiliations identify each person and don't imply endorsement by any institution.

The wellness industry convinced you fiber was boring so they could sell you collagen.

The goat, on X

Your gut is a crowd.

Bacteria have taste. Fiber is what they eat. Right now they've had nothing since breakfast, and breakfast was coffee.

Crowd status. Milling around. Hungry.
Live from your gut
As seen
on the
hillside!

A brief history of fiber.

By a goat who was there
8000 BC
I start eating the whole plant.

Leaves, stems, bark, a fence once. Nobody thanks me. Nobody needs to.

Grandma's kitchen
30 grams a day, by accident.

Beans. Bread that was still bread. Fruit you had to chew. Her pantry was technically a pharmacy.

Somewhere after
Bread turns into air.

Fruit turns into juice. Vegetables turn into garnish. Nobody sends a memo.

Lately
You're at 15. Collagen is having a moment.

The supplement aisle hands you inulin and calls it wellness. Your gut files a complaint within the hour.

2027
I got tired of waiting.

Psyllium and Sunfiber. A gastroenterologist and 2 scientists built the formula. I signed off.

Ask your goat.

She's been right about this for 10,000 years and she's mildly annoyed you're only asking now.

Doctor Goat
How much fiber do I actually need?

25 grams a day. You're getting 15. I'm getting 30 and I'm not even trying.

Four stomachs, zero problems. Meaning what?

My stomach has 4 chambers. Rumen, reticulum, omasum, abomasum. All 4 work, because I feed them fiber all day. You have 1. Let's start there.

Why did the last fiber gummy wreck me?

Inulin. Or chicory root, same thing in a nicer outfit. It ferments fast and your gut pays for it within the hour. You didn't fail. The fiber did.

Why 2 fibers?

Your gut is a crowd. Psyllium gels with water and carries the clinical weight. Sunfiber ferments slowly and feeds the crowd without the rush.

Is fiber really that big a deal?

Your grandma's pantry was technically a pharmacy. 30 grams a day, by accident. Then everyone got confused and bought collagen.

When can I get it?

2027. Get on the list. First 1,000 get first access.

Eat like your grandma did.

Or take the goat. She was there, and she never stopped.

Hi. I'm the goat. I'll be down here judging.Tap the goat