The AMORIS Study: Following 175,000+ people, researchers found ApoB was a stronger predictor of fatal heart attacks than standard LDL.  UK Biobank & Clinical Trials: Large-scale data (FOURIER, IMPROVE-IT) confirm ApoB outperforms LDL-C and non-HDL-C, especially in cases where these metrics provide conflicting results.  Medical Consensus: The 2024 National Lipid Association highlights ApoB as a critical tool for accurate risk assessment and treatment. Target Levels When it com

Many believe cardiovascular disease (CVD) only develops when someone has both insulin resistance and high lipids (like elevated LDL). A common illusion—especially among athletic, lean people with excellent insulin sensitivity—is that “good” metabolic health makes lipids less important. This is no longer accurate. Risk arises along two independent axis, with cumulative effects over decades: 1. Accumulated LDL Exposure High LDL cholesterol (dyslipidemia) independently drives at

Statins like Rosuvastatin are primary tools for reducing high cholesterol. Emerging evidence shows it possesses beneficial effects far beyond its intended purpose. In a functional medicine context, we are shifting from a single-focus approach to one that utilizes this medication as a potent modulator of systemic inflammation, oxidative stress, and immune dysregulation — known root causes of chronic illness. Beyond the Lipid Panel The traditional approach to healthcare often z

We didn't change our minds because it was popular—we changed them because the data gave us no choice. Most people treat their diet like a religion, but in functional medicine, staying stagnant is a disservice to the patient. Join Sarah Zaldivar, PhD (Ex-Carnivore) and Stefan Hartmann, PA-C (Reformed Lipid Denialist) for a raw look at what happens when your clinical results and the latest research force you to dismantle your own dogma. We’ve taken the heat from our followers a

In this episode of the Iron Direct Primary Care podcast, Stefan and Nurse Practitioner Ashley Curtis are joined by midlife health coach Maria to pull back the curtain on menopause, perimenopause, and the massive gaps in standard medical care. We dive deep into why "normal" lab results aren't "optimal," the hidden cardiovascular benefits of high-dose estradiol, and the real reason many women are misdiagnosed with UTIs and anxiety when they actually need hormone replenishment.

Making the case for using apoB in primary prevention (people without known ASCVD, like heart attack, stroke, or prior events) is strong and growing, based on expert opinion, observational data, Mendelian randomization (genetic evidence showing causality), and discordance analyses. While major U.S. guidelines (like the 2026 ACC/AHA) still center on LDL-C for broad primary prevention, many lipid specialists argue apoB should be the preferred or routine marker—here's why: ApoB d

Lp(a) elevation massively increases risk of heart attack and stroke Lp(a) concentrations are mostly genetically determined by the LPA gene, and population distributions vary by ancestry (highest levels in individuals of African ancestry). Prospective studies have found robust associations for Lp(a) with ASCVD outcomes and calcific aortic valve disease, and genetic studies support causal associations. ASCVD risk increases in a continuous manner with higher Lp(a) concentrations

ApoB directly quantifies the number of atherogenic lipoproteins, providing a more accurate measure of atherogenic particle burden than LDL-C, which reflects the cholesterol mass carried by LDL particles. ApoB measurement enhances the accuracy of ASCVD risk assessment in untreated populations by directly assessing the number of atherogenic particles, including LDL, VLDL, and Lp(a). ApoB provides a more direct marker of lipoprotein particle number, bypassing the variability int

I am happy to announce a new Iron DPC service and collaboration with an active Iron DPC member and entrepreneur. Meet Kat Rome RDCS, RVT  We’re excited to partner with Kat Rome & Sonovus Sonography to bring hospital‑grade cardiovascular ultrasound directly into the Iron DPC office. Kat is a highly experienced cardiovascular sonographer whose career in diagnostic medical sonography began in the mid 1990's. Holding credentials as an RDCS, RVT, and RDMS she brings decades of exp

Why These Markers Matter ApoB — the best single measure of atherogenic particle burden (each LDL, VLDL, etc. particle carries one ApoB). Lower levels (<60–80 mg/dL on treatment) strongly correlate with slower plaque progression and lower CV event risk. LDL-P — particle number; high counts predict events better than cholesterol mass alone because more particles can enter artery walls. Optimal on therapy is typically <1000 nmol/L. hsCRP — marker of systemic inflammation; levels

The Mechanism: Estrogen-Dependent Regulation of LDL Clearance The elevation of serum Low-Density Lipoprotein (LDL) cholesterol during the menopausal transition is primarily driven by the withdrawal of estradiol, which plays a critical role in hepatic lipid metabolism through two primary molecular pathways: 1. Transcriptional Upregulation of LDLR In a premenopausal state, estrogen binds to hepatic estrogen receptors (primarily ER-alpha). This complex acts as a transcription fa

I released another part in my history lesson: SCAMDEMIC- The Medical Truth They Tried to Censor. Part 4- Nov 2020 Early 2021 on youtube  and spotify

New podcasts on Youtube  and Spotify : In this episode of the Iron DPC Podcast Stefan sits down with a Texas-based cardiologist Rishin Shaw to demystify the complexities of cardiovascular health and the business of modern medicine. They move beyond basic cholesterol numbers to discuss the high-level markers that actually matter for longevity, including Apo-B, Lipoprotein(a), and Coronary Artery Calcium (CAC) scans. The conversation also tackles the "broken" insurance model, c

Iron DPC is now offering the Shield blood test from Guardant Health which represents an innovative advancement in cancer screening using a simple blood draw to analyze cell-free DNA for cancer signals. This test is offered to patients at Iron DPC with commercial or medicare insurance over age 45 (cash rate is about $1,000 and we would prefer the Prenuvo full body MRI if spending that much). Guardant offers two distinct versions under the Shield platform: the FDA-approved Shi

MELBOURNE BEACH, Fla. (Feb. 9, 2026) An adult manatee was discovered and successfully removed from a stormwater drain Monday afternoon during routine maintenance on Neptune Drive.A work crew inspecting the system spotted the animal inside a baffle box — a debris-catching chamber that drains into the Indian River Lagoon. Officials believe the manatee entered the pipe from the lagoon seeking warmer water after recent cold snaps. The Florida Fish and Wildlife Conservation Commi

I never want to hear the words "increasing health insurance access" from a politician. Because no surgeon, primary care or specialist I know actually enjoys fighting with insurance to get paid. The system is corrupt and broken. The federal and state government will never solve the healthcare problems by throwing more money or more insurance at the problem. The solution is slashing red tape and expanding provider-patient access to care. Encourage the free-market economy. I wil

Wake up- train at Wolf Fitness at 5:30am. Home- check phone and see a few worried patients in my text messages- one thinks she should go to an ER or urgent care for skin infection- not necessary- I address those, call in some meds and schedule a sick kid later as an add on . Breakfast and practice tennis 10am. Back home 11:30. Logan invoicing patients for our Labcorp bill- some payments bouncing back. Check phone- there is a panic patient in the texts- she lacerated her finge

My Health Stack for Recovery I recently overcame a flu/COVID strain in just 24 hours. You might wonder what my secret was. My approach included optimized hormones, a clean diet, and reverse osmosis water with trace minerals added back. I also consumed pre and probiotics from fiber and fermented vegetables. My diet consisted of complex carbs and no added sugars. Routine exercise, cold plunges, and sauna sessions were also part of my regimen. Symptoms Encountered Many patients