The Diet Pivot: After 15 Years of Carnivore, Why is Dr. Kiltz Now Eating Fish and Even Incorporating Veggies?

Published By
Dr. Robert Kiltz
On
November 11, 2025

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For over a decade and a half, my core philosophy has been remarkably simple: beef, butter, and bacon as the bedrock for health, especially when it comes to metabolic and reproductive wellness. This strict carnivore approach, focusing on high-fat and the absolute elimination of plant matter, has delivered profound, life-changing results for countless individuals.

However, a fundamental tenet of good science—and of being a good doctor—is the willingness to re-evaluate one's position based on new data. Recently, I received some personal data that prompted a significant, and frankly surprising, shift in my own nutritional journey.

The Scientific Catalyst for Change

A deeply held dietary philosophy, especially one built on 15 years of success, is not abandoned easily. My pivot was driven by two crucial, personal health updates:

  • A Rising CAC Score: The Coronary Artery Calcium (CAC) score is a critical, non-invasive measure of plaque buildup in the heart's arteries. A recent scan showed an unfavorable trend in this score. This was a clear signal—a red flag—that forced me to deep dive into potential causes and preventative measures for my cardiovascular health.
  • Acute Colitis: A severe, recent bout of acute colitis necessitated a recovery protocol involving a short course of fasting and medical treatment. This inflammatory episode highlighted the absolute necessity of a protocol that supports digestive barrier integrity and reduces systemic irritation.

These events initiated a period of intense reflection: "Perhaps a sole focus on beef and strict carnivore is not serving my body in the right direction right now." A leader in health must be open to change, and the pursuit of longevity absolutely demands this kind of flexibility.

Introducing Flexibility: Fish, Fats, and a Touch of the Earth

My new approach is a thoughtful, science-driven evolution designed to address my CAC score and promote deep gut healing. The core principles—high-fat and low-carb—remain firmly in place, but with strategic, high-quality additions:

  • Wild-Caught Fish & Seafood: My diet now prominently features high-quality seafood like Chilean sea bass, halibut, tuna, and scallops. This shift delivers an essential boost of marine-based Omega-3 fatty acids (EPA and DHA), known for their powerful anti-inflammatory effects and proven benefits for cardiovascular health.
  • Targeted Supplements: I've strategically added supplements, including cod liver oil (a rich source of Vitamins A and D and Omega-3s) and iodine, recognizing the importance of these micronutrients for overall hormonal and cellular function. A baby aspirin was also introduced as a preventative measure.
  • The Return of Cooked Veggies: In a major softening of my long-standing message, I am now experimenting with small amounts of well-cooked vegetables, such as potatoes, along with traditional high-fat additions like butter and sour cream. This acknowledgment embraces a more inclusive approach, recognizing that some individuals may tolerate and even benefit from non-inflammatory plant matter.

This move underscores an important concept I've always preached: nutrition is personal, and our needs must evolve over time. What worked for me for 15 years may need adjusting today for the next 15 years.

Faith, Flexibility, and an Inclusive Message

This dietary pivot is more than just a menu change; it's a reflection of an emotional and spiritual journey toward a higher standard of health. The new message is one of inclusion, flexibility, and meeting people exactly where they are on their health path.

The overarching goal remains the same: to promote a lifestyle of health, vitality, and hormonal balance. Whether that means strict carnivore, Keto-Carnivore, or now a more fish- and fat-focused diet, the emphasis is on quality ingredients, aggressively removing inflammatory toxins (sugar, seed oils), and the powerful benefits of fasting (like One Meal a Day). The conversation is now open to foods like buffalo, chicken, turkey, and yes, high-quality, raw dairy.

The most important takeaway is this: We all need to be open to change. Health leaders must be willing to reassess, share the findings openly, and encourage their community to do the same.

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