Why I refused to add 10% hydroxyapatite to our toothpaste…
Today’s newsletter is more technical than usual. If you love data, you’ll enjoy this deep dive—it exposes one of …
Mondays with Mark
No One’s Explained Your Bad Breath Like This Before…
I love skiing in the winter. But every time I’m out on the slopes, I cringe when I see the water vapor people lose on …
Why I Take Turmeric Every Day
When I first started seeing patients in Silicon Valley, I noticed something odd. Many of my South Asian patients …
Skip the rinse, save your heart
Eight years ago, I told you something that made a lot of people raise their eyebrows: The mouthwash sitting on your …
My daughters are nearing perimenopause. Here’s what I want them to know.
A new study explains something most people—doctors included—are missing: when estrogen declines, your gums become more …
Instagram’s wrong about this one…
In the U.S., fluoride is considered the gold standard—despite known risks of thyroid disruption, IQ reduction at high …
What I wish more people knew about green tea and your mouth
What if the most powerful, microbiome-friendly mouthwash wasn’t in a plastic bottle—but in your teacup? I used to drink …
I was trained to remove it. Now I help patients protect it.
I used to think biofilm was the enemy. That’s what we were taught in dental school: Scrub harder. Rinse longer. …
What I’m Buying on Prime Day
It’s Prime Day. If you’re planning to stock up, and you’re curious what I’m stocking up on, here are the three …
Is your mouthwash blocking weight loss?
Everyone’s talking about Ozempic. But almost no one is talking about this: You might already have your own version …
Why I Got Fired My First Year as a Dentist
It was the summer of 1982, and I wasn’t a dentist yet. I was a 20-something biochemistry and art history major at the …
The fertility factor no one talks about
You might be tracking your cycle. You might be taking prenatals, getting your body ready, or even weighing fertility …
10 weird things I do to keep my teeth cavity-free
I’ve seen countless patients over the years who brushed and flossed religiously—twice a day, never missed a checkup—and …
Dear pediatricians: please stop doing these 4 things
At the very first well-baby visit, a divide begins. Medical over here. Dental over there. But the mouth isn’t separate …
One patient said it saved them. Another said it ruined them.
A root canal saved one of my patients. Another told me it ruined their health. That contrast—so common, so extreme—is …
Is xylitol bad for you?
In today’s newsletter, we’re breaking down the study that claimed xylitol is bad for your heart, why the science doesn’t …
The oldest organ in your mouth isn’t what you think
3.5 billion years of evolution gave you a built-in shield against cavities and gum disease. Here’s why it no …
Your mouthwash is backfiring—try this 2-min trick instead
Let’s be honest: most people don’t reach for mouthwash because it works. They use it because they like the feeling—the …
Still drinking tea from the natural food store?
In the 1990s and early 2000s, my family drank iced tea every day. We made it in large glass pitchers and kept it in the …
You’re not aging—you’re upgrading (if you do this)
When I was younger, longevity meant adding years. Today, it means adding life to those years. This month, I …
You brush your teeth—but are you brushing for your heart?
A peer-reviewed study just confirmed something we’ve known in functional dentistry for years: The inflammation in your …
Why conventional orthodontics is a scam
Conventional orthodontics is a scam. And I say that as a dentist who had all three of his now adult daughters go through …
What private equity is doing to your dentist’s office
There’s a quiet takeover happening in dentistry—and it’s already impacting how patients are treated and how dentists …
So your dentist is still defending fluoride? Here’s what you’re going to forward them…
A reader recently asked me… “If Europe doesn’t fluoridate its water, why do they still have lower cavity rates …