Releasing March 16, 2027
SPIT

Why Your Mouth—and Its Microbes—Are the Secret to Whole-Body, Lifelong Health

A straight-on front mockup of the book cover for "Spit" by Dr. Staci Whitman, featuring a light blue background decorated with colorful abstract microbe shapes and black text, isolated against a white background.
Pre-Order Now, Claim Free Gifts
Pre-Order Now, Claim Free Gifts

Pre-Order Spit Now and Claim Free Gifts Below!

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The SPIT Family Oral Health Toolkit

A downloadable guide designed especially for moms and parents, featuring family oral health routines, practical tips, and questions to ask dental providers.

An over-the-shoulder horizontal lifestyle photo of a woman holding a digital tablet displaying the digital cover of "The Mouth-Body Connection Quick-Start Guide" by Doctor Staci, which shows Dr. Staci Whitman holding a mouth photo in front of her face.
The Mouth–Body Connection Quick-Start Guide

Key takeaways, actionable recommendations, and a checklist for improving oral and overall health.

A horizontal lifestyle photo of a laptop on a wooden desk displaying a video call screen with Dr. Staci Whitman wearing a pink satin blazer and smiling during a virtual consultation.
Live SPIT Workshop + Group Q&A with Dr. Staci

Access to a live virtual educational workshop, including an interactive group Q&A with Dr. Staci.

How to Claim your Gifts

Two simple steps

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About the Book

A groundbreaking journey into the fascinating micro-universe in our mouths, and how to care for the ecosystem that’s been caring for you all along

The mouth is your body’s front door—and yet, we’ve been taught to think of it as something to scrub, drill, fill. But what if your mouth isn’t something to fix but rather a universe that is crowded, chatty, and astonishingly alive?

Right now, billions of microbes are living on your teeth, gums, tongue, and in your saliva. They are working, fighting, cooperating, sending signals, shaping inflammation, influencing digestion, and helping determine whether your body moves toward resilience or disease.

In Spit, board-certified dentist and oral microbiome pioneer Dr. Staci Whitman pulls readers into this wildly underexplored universe and presents the new science and surprising links between the microbial menagerie on your tongue, teeth, and tonsils to dementia, fertility, diabetes, heart disease and cancer.

Spit is the answer.

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Inside, you’ll discover

The science is fascinating.
The takeaways are practical.

From everyday habits to the surprising role of saliva, Spit helps you understand what supports a healthier oral microbiome—and why it matters far beyond your smile.

"Eat a rainbow" of foods to feed your good bacteria

Slow down your chewing to increase saliva, aid digestion, and give food time to interact with oral microbes

Saliva isn’t just water or waste; it buffers acids, supplies minerals that repair enamel, and carries information about stress, hormones, and microbial balance

Ultra-processed foods, sugary sodas, polluted air, and chronic stress have crowded our teeth, shrunk our faces, and altered our saliva dramatically, increasing our risk of stroke, heart disease, and potentially Alzheimer’s

Your mouth is a neighborhood, not a battlefield: the objective isn’t a germ-free mouth, but a diverse, strong, resilient community that doesn’t allow opportunistic microbes to take over

When it comes to whole-body health, mouths do a lot of talking. It’s time we listen.

Meet the Author

Dr. Staci Whitman

Dr. Staci Whitman has spent her career looking beyond teeth. A board-certified dentist and functional medicine certified practitioner, she’s become a leading voice in the oral microbiome and its connection to whole-body health.

She co-founded the Institute for Functional Dentistry, founded the nation’s first functional pediatric dental practice, and is an entrepreneur and inventor with patents in oral care. An international speaker featured on Huberman Lab, CNN, and The Washington Post, she’s on a mission to help create a cavity-free world—and change the way we think about the mouth along the way.

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Bulk Orders

Looking for bulk quantities of Spit for your dental school, group or organization?

Contact us here. We have several amazing opportunities for you that also include special access to workshops and trainings with Doctor Staci.

A top-down perspective mockup of multiple stacked copies of the book "Spit" by Dr. Staci Whitman, featuring light blue covers decorated with colorful abstract microbe shapes and black typography against a white background.