There’s a moment that stopped me cold when I first read it.
Dr. Anthony Pearson, a practicing cardiologist with over 100 published research papers and decades of clinical experience, describes sitting across from his future wife at lunch, lecturing her on why she shouldn’t order a croissant with butter. He was certain he was right. He’d been telling patients the same thing for 30 years.
Then she asked him to show her the science.
What he found when he went looking changed everything.
When the Doctor Becomes the Student
Dr. Pearson calls himself The Skeptical Cardiologist, and that name didn’t come easily. It came from the uncomfortable work of questioning guidelines he’d followed for three decades. Guidelines about dietary fat, cholesterol, and what actually drives heart disease.
What he discovered is something many of us in the metabolic health space have been talking about for years: that the story we were told about fat, cholesterol, and heart health was far more complicated — and in some cases, far less accurate — than we were led to believe.
He now eats butter, whole eggs, and full-fat yogurt. He has completely shifted how he counsels his patients. And he’s unusually willing to say, out loud and on the record: I was wrong.
That kind of intellectual honesty is rare. And it’s exactly why I wanted to have an expert Q + A conversation with him.
What the Research Actually Says
(The Short Version)
Here are the ideas that have shifted most significantly in recent research and in Dr. Pearson’s own cardiology practice:
Saturated fat is not a monolith. Not all saturated fats behave the same way in the body. The fatty acid profile in dairy fat is genuinely different from the saturated fat found in meat, and emerging research, including studies on a fatty acid called pentadecanoic acid (C15:0), suggests that some saturated fats found in dairy may actually be beneficial for cardiometabolic health.
Dietary cholesterol is not the villain it was once made out to be. The guidance to strictly limit dietary cholesterol has quietly shifted in the research, and whole eggs are a good example of a food that was unnecessarily demonized for decades.
Sugar and ultra-processed food are the real drivers. This is where Dr. Pearson is most emphatic, and where the evidence is most consistent. Reducing added sugar and refined carbohydrates is, in his view, the single most impactful dietary shift most people can make for their heart.
Visceral fat is a key driver of inflammation. The fat that accumulates around your organs produces hormones that drive inflammation directly, which matters enormously for cardiovascular risk. Whatever way of eating helps reduce that fat is, by definition, an anti-inflammatory diet.
You are an individual. One of the most important things Dr. Pearson said is that people respond very differently to the same dietary changes. Around 20% of lean people on very high saturated fat diets see a marked rise in LDL. Some people are more sensitive to dietary cholesterol than others. The data is a starting point, not a verdict.
The Tests Worth Asking About
One of the most practical things that came out of this conversation is the importance of going beyond a standard cholesterol panel. Two markers in particular; ApoB and Lp(a), can reveal cardiovascular risk that a basic lipid panel completely misses.
ApoB measures the number of artery-affecting lipoprotein particles in your blood; a more precise signal than LDL alone. Lp(a) is largely genetic and affects roughly 1 in 5 people, most of whom have no idea. Both are worth asking your doctor to test, especially if you have a family history of heart disease.
This is the kind of information that can genuinely change what you do next, and it’s also the kind of conversation most people never get to have in a standard 15-minute appointment.
Where Nutrition Meets Cardiology
This is the part that excites me most, because it’s exactly where my work lives.
Dr. Pearson gives us the clinical picture. My job, and my genuine passion, is helping you translate that picture into a real plate of food. Not through a rigid protocol, but rather a way of eating that is nourishing, satisfying, and actually built on evidence.
That means anchoring meals in foundational protein and fiber-rich whole foods: quality fish and meat, eggs, full-fat dairy, vegetables, legumes, nuts, seeds, ferments, and low glycemic fruit. It means choosing real food over packaged food, not because of a rule, but because of what the research consistently shows about ultra-processed ingredients and metabolic health.
It means dessert is still on the table. It just looks a little different.
And it means you don’t need a cardiology degree to eat in a way that protects your heart. You just need a little guidance and a kitchen.
Want to Go Deeper?
The full conversation with Dr. Pearson lives on my Nest Wellness Substack, and it goes much further than this introduction can.
In the complete post, you’ll find:
- Dr. Pearson’s full Q+A, including community questions from Nest Wellness subscribers on topics like ApoB, Lp(a), cardiac calcium scoring, when to consider medication versus lifestyle changes, protein recommendations for women in perimenopause and menopause, and the nuanced reality of LDL
- His personal “never eat” list (it’s shorter than you’d think — and one answer will surprise you)
- My own takeaways and how I translate his clinical insights into the recipes and meal frameworks I develop every week
- Links to further resources from my archives
Read the full post on Nest Wellness Substack
Paid subscribers also get access to the complete recipe archive — every recipe is CGM-tested, refined sugar-free, and designed to support stable blood sugar and metabolic health. If you’re managing pre-diabetes, navigating perimenopause, or simply want to eat in a way that protects your long-term health, this community is built for you.
Join Nest Wellness on Substack
At Nest Wellness, I believe that real food is one of the most powerful tools we have for our health. Teaching people to use food as medicine and eat well is what drives me to create and share. I’m so glad you’re here.
Beth
