Why every diet works for someone else

You did everything right.
The diet just wasn't written
for your biology.

Keto transformed your friend. Whole30 worked for someone at your gym. You tried both and got almost nothing. That's not a willpower problem — it's a biology problem. Your gut microbiome is biologically different, and no diet written for the average person accounts for that.

Find My Gut Type — Free → Why It Matters

800 People proved same meal = wildly different responses

4 Distinct Gut Types, each with its own ideal protocol

95% Of serotonin made in your gut — type controls the output

3 min Free quiz to find your type right now

You're not imagining it

The reason nothing clicked
is your Gut Type

Your gut microbiome is as unique as your fingerprint. It determines how you process food, handle inflammation, and produce the chemicals that control your mood and energy.

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"I've tried everything — keto, Whole30, plant-based. I keep switching because nothing sticks."

Every diet works for someone. The question is which one was written for your specific microbiome. A Type A Cultivator and a Type C Processor need opposite approaches to thrive. Switching diets without knowing your type is like trying every key on a ring in the dark.

→ Your Gut Type tells you which key fits.

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"I eat healthy but I'm still bloated, exhausted, and foggy after meals that should help."

Healthy for one type is harmful for another. Certain gut microbiome profiles cause the immune system to treat ordinary foods as threats — producing inflammation, energy crashes, and IBS-like symptoms in response to meals that are "supposed" to be good for you.

→ Your Gut Type explains exactly which foods you should avoid.

📊

"I track everything — macros, sleep, HRV. But I'm still missing something fundamental."

You've optimised everything except the variable that runs the whole operation. Your gut microbiome controls nutrient absorption, inflammation pathways, neurotransmitter production, and immune regulation. It's the operating system everything else runs on.

→ Your Gut Type is the missing layer in your health stack.

Find out which type you are — takes about 3 minutes

Take the Free Quiz →

The Science

Blood types changed medicine.
Gut Types will change how you eat.

In 2015, the Weizmann Institute ran an 800-person study and proved that two people eating identical meals can have completely opposite responses — and the dominant variable wasn't genetics. It was the gut microbiome. That's the science that broke the "one diet fits all" model.

Just as blood type predicts how your body handles transfusions, your Gut Type predicts how it handles food, stress, inflammation, and more. It's not a theory. It's a biological classification system built from real data.

Explore the 4 Gut Types →

800

People in the landmark study proving individual food responses are driven by microbiome type

95%

Of serotonin is produced in the gut — your type determines how much you make

70%

Of the immune system lives in the gut — your type shapes its default response to food

Gut Types. One is yours. The quiz takes 3 minutes to find it.

Why This Changes Everything

Your Gut Type Explains What
Nothing Else Could

Every confusing pattern in your health — the diets that failed, the symptoms that don't make sense, the energy that never comes back — can be traced to this one variable nobody tested.

Why Diets Keep Failing You

Keto, Mediterranean, vegan — each was designed for a fictional average person. Your Gut Type determines how you metabolize every macronutrient. Eating right for someone else's biology is still eating wrong.

Sensitivities That Don't Add Up

Some Gut Types carry microbial profiles that prime the immune system to over-react. Seasonal allergies, food sensitivities, IBS-like bloating after "healthy" meals — these patterns are your type at work, not random bad luck.

Energy and mood affected by gut microbiome

Energy, Mood & Mental Clarity

Your gut makes 95% of your serotonin. The species that produce it, and in what quantities, are determined by your Gut Type. Chronic fatigue and brain fog often aren't lifestyle problems — they're microbiome problems.

How It Works

From Zero to Your Personal Protocol

Start free. Go deeper when you're ready. You're in control of every step.

Take the Free Quiz

8 questions. 3 minutes. Get your estimated Gut Type and a personalised overview — completely free, no signup required.

Understand Your Type

Read your full type profile: which foods help you, which hurt you, and the specific habits your microbiome responds to best.

Confirm With a Lab Test

Ready for precision? A Viome at-home RNA test confirms your type with lab-grade analysis and scores 500+ foods to your exact biology.

Start With the Free Quiz →

Official Testing Partner

Want Lab-Grade Certainty?

The quiz gives you a strong starting point. Viome's at-home RNA test goes deeper — confirming your type at the molecular level with technology trusted by the Mayo Clinic.

Viome Gut Intelligence Test

At-home stool sample kit. Mail it back, get results in 2–3 weeks. Viome's RNA metatranscriptomics technology analyzes every active microorganism in your gut to confirm your type, score 500+ foods as Enjoy / Superfood / Minimize / Avoid, and generate a personalized supplement protocol built only for you.

🏥 Mayo Clinic partner

🔬 RNA metatranscriptomics

🏛️ FDA Breakthrough Device

💳 FSA / HSA eligible

📦 Ships to your door

✓ 500+ foods scored to your biology

Start With the Free Quiz First → Learn About Viome Testing

We recommend taking the quiz first so you know what you're testing for.

From the Research

The Science Behind Your Type

All Articles →

Gut Types

Why You and Your Partner Can Eat the Same Meal and Feel Completely Different

The science behind individual metabolic variance — and how your Gut Type is the missing variable.

The Keto Paradox: Why It Transforms Some Bodies and Breaks Others

Nutrition · 7 min read

Your Gut Makes 95% of Your Serotonin. Your Microbiome Controls the Factory.

Gut-Brain Axis · 6 min read

DNA vs RNA: Why the Testing Technology You Choose Matters

Testing & Science · 5 min read

You did everything right.
The diet just wasn't written
for your biology.

The reason nothing clicked
is your Gut Type

"I've tried everything — keto, Whole30, plant-based. I keep switching because nothing sticks."

"I eat healthy but I'm still bloated, exhausted, and foggy after meals that should help."

"I track everything — macros, sleep, HRV. But I'm still missing something fundamental."

Blood types changed medicine.
Gut Types will change how you eat.

Which of the 4 Types Are You?

The Cultivator

The Sentinel

The Processor

The Adaptor