Gut Science

The Library for
the curious.

Peer-reviewed research, translated for humans. Deep dives on the microbiome, the gut–brain connection, and the living foods that feed your inner ecosystem — honest about what the science does and doesn't yet show.

Start HereFoundations · 6 min read

Why Your Microbiome Matters

The trillions of microbes living inside you — and what they actually do.

Why Your Microbiome Matters
The Field Notes

Read by Topic

The Gut–Brain Axis
Neuroscience · 6 min read

The Gut–Brain Axis

How your gut and your brain stay in constant conversation.

Your Gut and Your Mood
Mental Health · 7 min read

Your Gut and Your Mood

The emerging links between the microbiome, depression, and anxiety.

Why You Bloat
Digestion · 5 min read

Why You Bloat

The real mechanics behind bloating and distension.

Constipation and the Gut Microbiome
Digestion · 6 min read

Constipation and the Gut Microbiome

How your gut community shapes transit time — and what actually gets things moving.

Jun, Explained
Ferments · 5 min read

Jun, Explained

What makes honey-fermented tea different from kombucha.

Sauerkraut, Explained
Ferments · 5 min read

Sauerkraut, Explained

Live, lacto-fermented vegetables and your gut.

Probiotic Shots, Explained
Ferments · 5 min read

Probiotic Shots, Explained

What the concentrated-ferment format is, and what the science says.

Men's Health & Your Gut
Men's Health · 6 min read

Men's Health & Your Gut

Testosterone, heart health, and the microbiome's role in both.

The Microbiology of a Kiss
Intimacy · 5 min read

The Microbiology of a Kiss

A ten-second kiss swaps around 80 million bacteria — here's what you're really sharing with a partner.

Alcohol and the Microbiome
Lifestyle · 7 min read

Alcohol and the Microbiome

What a drink actually does to the trillions of microbes in your gut — and where the science is genuinely settled.

Your Partner's Gut Is Part of Your Environment
Intimacy · 6 min read

Your Partner's Gut Is Part of Your Environment

Couples do not just share a bed, a fridge, and a bathroom. Over time, they share microbial signatures too.

The Morning-After Microbiome
Lifestyle · 6 min read

The Morning-After Microbiome

A hangover is not just a headache. It is alcohol, sleep loss, dehydration, inflammation, and a gut asked to clean up the mess.

Your Clean Eating Might Be Starving Your Gut
Culture · 6 min read

Your Clean Eating Might Be Starving Your Gut

A too-perfect diet can accidentally become low in the messy fibers, resistant starches, and ferments your microbes actually eat.

The Gut Check on GLP-1 Drugs
Metabolism · 7 min read

The Gut Check on GLP-1 Drugs

Ozempic-era appetite medicine changes hunger, gastric emptying, constipation risk, and the food patterns that feed your microbes.

Bottoming, Bloating, and the Microbiome
Sexual Health · 7 min read

Bottoming, Bloating, and the Microbiome

Receptive anal sex is easier to plan around when you understand gas, stool form, transit time, and the gut ecosystem behind them.

Are Probiotics Mostly Marketing?
Culture · 6 min read

Are Probiotics Mostly Marketing?

The probiotic aisle sells confidence. The science is more specific, more interesting, and much less magical.

The Masculinity Diet Is Wrecking Men's Guts
Men's Health · 6 min read

The Masculinity Diet Is Wrecking Men's Guts

Meat, protein powder, alcohol, and low fiber can build a gym personality faster than they build a resilient microbiome.

The Anxiety Stomach Is Real
Mental Health · 6 min read

The Anxiety Stomach Is Real

Stress can speed you up, shut you down, twist your appetite, and make the gut feel like the loudest organ in the body.

Your Stool Is a Status Report
Digestion · 6 min read

Your Stool Is a Status Report

Color, shape, frequency, urgency, and change over time can tell you more than wellness apps usually do.

The War on Seed Oils Distracted Everyone From Fiber
Culture · 6 min read

The War on Seed Oils Distracted Everyone From Fiber

The loudest nutrition fight online may be less useful than the quiet fact that most people still underfeed their microbes.

Bottom Prep, Explained
Sexual Health · 7 min read

Bottom Prep, Explained

The science of timing, fiber, stool form, hydration, and why perfect cleanliness is not the same thing as a prepared gut.

Douching and the Gut Lining
Sexual Health · 7 min read

Douching and the Gut Lining

Rectal douching is common, but the pressure, frequency, volume, and additives can matter for irritation, microbiome balance, and STI risk.

The Fiber Strategy for Better Bottoming
Sexual Health · 6 min read

The Fiber Strategy for Better Bottoming

Fiber is not sexy branding. It is the quiet variable behind stool form, transit time, gas, and bottoming predictability.

Anal Sex, Inflammation, and Recovery
Sexual Health · 7 min read

Anal Sex, Inflammation, and Recovery

The rectal lining can handle sex, but friction, dryness, microtears, and infections are real biology worth respecting.

The Microbiome of Gay Men
Sexual Health · 7 min read

The Microbiome of Gay Men

Research keeps finding microbiome differences associated with male-male sexual behavior. The challenge is reading that without stigma.

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