A man sitting on the toilet, quietly celebrating while holding a stopwatch

FIBER.
WATER.
BOOM.

Going to the toilet really shouldn't be an achievement.

FiberBoom takes about two spoonfuls of psyllium husk — a plant-based fiber that loves water — and puts them into a bar that actually tastes good.

Real fiber. Real taste. Real boom.

Shop FiberBoom ↗See Flavors

SO. WHAT'S FIBERBOOM?

Psyllium.
But actually nice to eat.

We put a serious amount of psyllium husk into a proper bar.

No tub of powder. No measuring. No stirring. No beige glass of something you have to drink before it turns into wallpaper paste.

Just a bar. And somehow, it tastes really good.

Dark ChocolateDates & NutsPistachio

From $2.30 / bar

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BECAUSE APPARENTLY YOUR GUT HAS PLANS TOO

Everything was fine.
Then it wasn't.

Travel. Different food. Hard training. A new routine. Maybe GLP-1 medication.

Suddenly you're bloated. You're less regular. You're drinking coffee less for enjoyment and more as a negotiation tactic.

And the bathroom starts taking up far more mental space than a bathroom deserves.

Sometimes you need effective fiber.

TRAVELNEW DIETHARD TRAININGNEW ROUTINEGLP-1 MEDICATION

ABOUT FIBER

MORE FIBER

THE RIGHT
FIBER.

Everyone says, “Eat more fiber.” Okay. But fiber isn't one thing. Different fibers do different things.

FiberBoom uses psyllium husk — a plant-based, gel-forming fiber with one particularly useful talent:

It loves water.

And that's where things get interesting.

HERE'S THE IMPORTANT BIT

Psyllium loves water.

Give psyllium water and it absorbs it. It swells and forms a soft gel.

That water-holding gel is one reason psyllium behaves differently from many other fibers. As it moves through the digestive system, it can increase the water content and volume of stool.

Psyllium. Water. That’s the point.

Psyllium husk in a bar that actually tastes good.

Give it time — your body might need a few days to adjust to psyllium.

Illustration of a person eating a bar, with the digestive tract visible

Illustration of drinking water alongside the bar

Illustration of the digestive tract, with formed stool at the end of the intestine

ONE SMALL PROBLEM

They all taste good.

Pick one. Or don’t. Trying all three is a perfectly reasonable response.

Dark Chocolate

Rich, chocolatey and crunchy.

From $2.30 / bar in the 30-bar box

YES. THERE'S ACTUAL SCIENCE.

Psyllium has receipts.

People have studied psyllium for decades: bowel function, cholesterol, blood sugar, and fullness. Actual trials. Actual numbers. Here they are.

01 / CONSTIPATION

Constipation

Psyllium absorbs water and increases the water content and volume of stool. Researchers have studied how this can help people with constipation.

More frequent bowel movements than with docusate, a stool-softening medicine.

View the research ↗

3.5 vs 2.9bowel movements per week

McRorie et al., 1998 · 170 adults with chronic idiopathic constipation · 5.1g psyllium twice daily vs 100mg docusate twice daily · 2 weeks. Week 2 means; p = 0.02. This was not a no-treatment comparison.

02 / CHOLESTEROL

Cholesterol

Psyllium’s gel-forming fiber can reduce the reabsorption of bile acids.

Psyllium lowered LDL (“bad”) cholesterol across 28 controlled trials.

View the research ↗

−0.33 mmol/Laverage LDL difference vs control

Jovanovski et al., 2018 · 28 randomized trials, 1,924 participants with or without high cholesterol · Median psyllium dose ≈10.2g/day · Trials ≥3 weeks. Pooled difference; 95% CI −0.38 to −0.27 mmol/L. The line shows the confidence interval.

03 / BLOOD SUGAR

Blood sugar

The gel created by psyllium can slow the movement and absorption of nutrients from food.

People with type 2 diabetes had a lower post-breakfast glucose response during psyllium treatment.

View the research ↗

14.19 → 12.83observed peak of the mean curve · mmol/L

Without psyllium · phase 1With psyllium · phase 2

Sierra et al., 2002 · 20 adults with type 2 diabetes taking glibenclamide · 14g psyllium/day for 6 weeks; 3.5g before the test breakfast · Table 1, phases 1 and 2. Sequential, non-randomized study. Means shown; baseline glucose also differed. Not a prediction for people without diabetes.

View exact data

Mean serum glucose (mmol/L)
Minutes	Without psyllium	With psyllium
0	8.66	7.73
10	9.43	7.98
20	10.81	9.05
30	12.02	10.46
45	13.52	12.06
60	14	12.83
75	14.19	12.51
90	13.63	11.93
120	12.54	10.76

04 / FULLNESS

Fullness

Because psyllium absorbs water and expands, researchers have also investigated whether it can increase feelings of fullness after eating.

People reported greater fullness after breakfast with psyllium compared with placebo.

View the research ↗

−21.7 → −14.9fullness score · higher means fuller

Higher means fuller: −14.9 is higher than −21.7. These are averages over 4.5 hours after breakfast, not hourly readings.

Brum et al., 2016 · Study 2, 40 healthy adults in the analysis · 6.8g psyllium before meals over 3 days · Table 4. Model-adjusted average scores across the 4.5-hour post-breakfast period; p = 0.002. SLIM scale −100 to +100. Industry-funded; no weight-loss outcome.

Research on psyllium preparations, not clinical trials of FiberBoom. Study doses, formats and populations differ; these results do not promise the same effect from a bar.

Two spoons of psyllium and one FiberBoom bar

PSYLLIUM USED TO COME WITH HOMEWORK

Powder. Water. Stir. Hurry.

Measure the powder. Pour it into water. Stir. Keep stirring. Watch it get thicker. Drink it. Fast.

We wanted the psyllium. Not the ceremony. So we put it into a bar.

Two spoonfuls. No spoon.
No thick psyllium drink.

Natural fiber
Low carb
Zero sugar

CONGRATULATIONS

You may now
leave the toilet.

Go to work. Go train. Catch the flight. Go outside. Drink your coffee while it’s still hot. Do literally anything more interesting.

Because your bathroom routine should not be the main event of your morning.

Fiber should fit into your life. Not take it over.

A relaxed man walking outside with coffee and a FiberBoom bar

ENOUGH TALKING

Pick your box.

Choose your flavour. Choose your size. Done.

Dark Chocolate

Choose your flavour

Dark Chocolate · 14 bars

Online ordering is not open yet.

FINE. LET'S TALK ABOUT POOP.

Good questions.

How much psyllium is actually in one bar?

FiberBoom contains 10g of psyllium husk per bar — roughly two spoonfuls.

How many bars should I eat?

Start with one bar per day. That’s the intended serving.

Do I actually need to drink water with it?

Yes. Psyllium absorbs water. Have FiberBoom with a generous glass of water and drink enough fluids throughout the day.

Will FiberBoom make me poop?

FiberBoom is a food containing psyllium husk, not a laxative or medicine. Psyllium has been studied in relation to constipation and bowel function, but individual responses vary.

Does one bar contain all the fiber I need?

No. FiberBoom gives you 10g of psyllium husk, but it should be part of a balanced diet containing other sources of fiber.

Why psyllium instead of another fiber?

Different fibers have different physical properties. Psyllium forms a water-holding gel — one of the properties behind many of its best-studied effects.

I’m taking a GLP-1 medication. Can I eat FiberBoom?

If you take medication and aren’t sure whether psyllium is appropriate for you, ask your doctor or pharmacist.

I’m taking other medication. What then?

Ask your doctor or pharmacist whether psyllium is appropriate for you and whether it should be taken separately from your medication.

Where can I see the evidence?

Right below this. Actual papers. Actual links. Go wild.

DON'T TAKE OUR WORD FOR IT

Read the research.

Here are the trials, reviews and scientific sources behind the psyllium information on this page.

01 · McRorie et al. · 1998

FIBER.
WATER.
BOOM.

Psyllium husk. A bar that actually tastes good. A big glass of water.

Bathroom drama: optional. Real fiber. Real taste. Real boom.

Shop FiberBoom ↗

FIBER.
WATER.
BOOM.

Psyllium.
But actually nice to eat.

Everything was fine.
Then it wasn't.