Expert Q&A

Has anyone done genetic age testing, hopefully before and after carnivore diet — what most people get wrong about this

What Genetic Age Testing Actually Measures

As the founder of CFP Weight Loss and author of The Metabolic Reset, I've guided hundreds through stubborn midlife weight issues. Genetic age testing, often called epigenetic or biological age testing, analyzes DNA methylation patterns to estimate how old your cells behave compared to your chronological age. Unlike standard genetic tests that look at inherited traits, these measure how lifestyle, diet, and environment influence gene expression. Popular kits like TruAge or InsideTracker report your biological age, often showing a 3-8 year difference in middle-aged adults struggling with hormonal changes, diabetes, and joint pain.

Before and After Carnivore Diet Experiences

Many of my clients in their late 40s and early 50s run these tests before starting a carnivore approach because it eliminates inflammatory plant compounds that exacerbate insulin resistance and joint issues. Typical pre-diet results show biological age 4-7 years older than actual age due to years of failed diets, blood sugar swings, and excess weight. After 90-180 days on a strict carnivore protocol—focusing on fatty ruminant meats, salt, and water—retesting often reveals a 2-5 year reduction. This aligns with lowered inflammation markers, stabilized blood pressure, and improved insulin sensitivity. One client with longstanding knee pain dropped her biological age by 4.2 years while losing 38 pounds, proving that when joints stop hurting, consistent movement becomes possible without fancy gym schedules.

What Most People Get Wrong About These Tests

The biggest error is treating a single test as definitive. Results fluctuate 1-2 years based on recent sleep, stress, or even the time of day you provide the sample. Many expect dramatic reversal in weeks, but meaningful epigenetic shifts require consistent metabolic changes over months. People also ignore that insurance rarely covers these $300-600 tests, so they waste money on poorly timed follow-ups. Another mistake is chasing the lowest number without addressing root causes like hormonal weight gain or emotional eating patterns I outline in The Metabolic Reset. Tests don't replace measuring waist circumference, fasting glucose, or how your clothes fit.

Practical Steps for Accurate Tracking

Run your baseline test after a 4-week stabilization period, not during major diet shifts. Retest at consistent 90-day intervals using the same lab. Pair results with simple metrics: blood pressure under 130/85, fasting insulin below 10, and 5-10% body weight loss. For beginners overwhelmed by conflicting advice, start with 30 days of carnivore to calm inflammation, then retest. This approach has helped my clients reverse metabolic damage without complex meal plans. Focus on consistency over perfection—your joints will thank you, and the scale will finally move downward sustainably.

💬 What the Community Says

The community shows strong interest in genetic age testing paired with carnivore diets, particularly among 45-55 year olds battling hormonal weight gain and previous diet failures. Most report initial biological age readings 3-6 years higher than chronological age, with many noting 2-4 year improvements after 3-6 months of meat-only eating. Practitioners frequently discuss how reduced joint pain made movement easier, though a vocal minority questions test reliability due to cost and variability between labs. Debates center on whether observed changes reflect true epigenetic shifts or simply lower inflammation and better sleep. Several share frustration with insurance non-coverage but praise easier blood pressure and blood sugar management. Newcomers often feel overwhelmed choosing testing companies, while experienced users recommend consistent timing and pairing tests with basic health markers rather than obsessing over the age number alone. Overall sentiment is cautiously optimistic with calls for more long-term before-and-after data.
Cite this answer
Clark, R. (2026). Has anyone done genetic age testing, hopefully before and after carnivore diet —. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/has-anyone-done-genetic-age-testing-hopefully-before-and-after-carnivore-diet-what-most-people-get-wrong-about-this
Russell Clark, FNP-C, APRN, FNP-C, APRN
About the Author

Russell Clark, FNP-C, APRN, is the founder of CFP Weight Loss in Nashville and CFP Fit Now telehealth. Over 35 years in healthcare — Army Nurse Reserves, Level 1 trauma ER, hospitalist — he developed a 30-week protocol integrating real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 30–90 pounds. He and his wife Anne-Marie lost a combined 275 pounds using the same protocol.

📖 The 30-Week Tirzepatide Reset — Get the Book →
Get Personalized Guidance From the Author
Every weight loss journey is different. Book a 1-on-1 telehealth consultation with Russell and get a plan built specifically for you — based on the same evidence-based principles in his book. Available to patients in all 50 states.
Book Your Consultation →
Have a follow-up question?
More Questions 200 answered
▸ What is the connection between Metformin (6 weeks in) for insulin resistance — can the gut stuff actually get better and how it connects to gut health and inflammation? ▸ I have an iodine deficiency. Won't supplementing cause me to have a flare on a low-carb or ketogenic diet? ▸ Omnipod. Starting an insulin pump help while doing intermittent fasting for long-term maintenance (not just short-term)? 📖 Insulin Resistance — A condition where your cells stop responding to insulin, locking fat in storage; our protocol is designed to unlock thes… ▸ How are people using 10mg reta vials at low doses during the weight loss plateau phase — what the research actually says? ▸ My weight loss progress so far as a 23 year male who stared eating less unhealthy and does little to moderate exercise. Am I doing well — evidence-based answer for CFP patients for people with insulin resistance? ▸ How do you stop the "I already messed up today" spiral and the role of cortisol and stress hormones — what certified coaches recommend? ▸ Omnipod. Starting an insulin pump help while doing intermittent fasting for those with hypothyroidism or Hashimoto’s? 📖 Maintenance Phase — The final 28 days of our 70-day cycle where we stabilize the new weight and solidify the metabolic habits that prevent f… ▸ These electrolyte tabs, how often — evidence-based answer for CFP patients — what certified coaches recommend? ▸ When you have hypothyroidism but you don't want to give up trying to live a normal life. 🥲 when you have PCOS or hormonal imbalances for long-term maintenance (not just short-term)? ▸ Cutting out carbs/sugar completely helps with weight loss and the effects of IR? Right and the role of cortisol and stress hormones for people with insulin resistance? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ How to calm my nerves down at doctors — what do certified weight loss coaches recommend if you're on a GLP-1 like semaglutide or tirzepatide? 📖 GIP (Gastric Inhibitory Polypeptide) — A hormone that, when combined with GLP-1, enhances the body’s ability to break down fat and manage blood sugar levels mo… ▸ Is compounded semaglutide with B12 worth choosing over B6 or plain: best practices and common mistakes to avoid — what certified coaches recommend? ▸ Is it normal to lose weight then gain again when you have PCOS or hormonal imbalances for long-term maintenance (not just short-term)? ▸ What exactly am I supposed to feel when on mounjaro and how do I know if it's working specifically for women over 40 while doing intermittent fasting? ▸ What can I ask for if estrodiol cream remains in shortage? Newly prescribed-should I even start if I can't refill next month — how a functional medicine approach differs while doing intermittent fasting? 📖 Hormonal Chaos — The internal state of imbalance caused by modern grains and refined carbs that overrides willpower and forces the body t… ▸ Is it possible that low carb is the only way I can eat specifically for women over 40 and its effect on metabolism and insulin levels? ▸ Is it okay for teenagers to do longterm lowcarb/keto — evidence-based answer for CFP patients for those with hypothyroidism or Hashimoto’s? ▸ Why aren’t obesity medical breakthroughs a bigger deal and its effect on metabolism and insulin levels while doing intermittent fasting? ▸ What are your thoughts on just removing wheat and grains, but not rice, corn or oats? Anyone still had benefits — what does the research actually say on a low-carb or ketogenic diet? ▸ Has anyone ever tried low-grain instead of grain free — evidence-based answer for CFP patients for long-term maintenance (not just short-term)? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ To what extent do Mendelian Randomization Studies provide causal evidence for a particular claim — what does the research actually say specifically for women over 40? ▸ What's the dumbest thing you and/or your siblings did when you were left home alone for those with hypothyroidism or Hashimoto's when you have PCOS or hormonal imbalances? 📖 CICO (Calories In, Calories Out) — An outdated model of weight loss that ignores the role of hormones; we challenge this by focusing on food quality and ho… ▸ Weight loss without GLP-1 — what does the research actually say while doing intermittent fasting? ▸ Were any of you guys fans of Journey? How big were they — what the research actually says? ▸ What causes I reduced my IR from 15.5 to 4 in 3 months and its effect on metabolism and insulin levels? ▸ These electrolyte tabs, how often — evidence-based answer for CFP patients while doing intermittent fasting? ▸ What foods to stock for overnight guest — evidence-based answer for CFP patients: what to track and how to measure progress? ▸ When do you know to go to the hospital specifically for women over 40? 📖 Smart Cycling — The strategic alternating of medication doses with planned 'off' periods to prevent receptor desensitization and ensure … ▸ Can autophagy regenerate muscle during physically active prolonged fast and how it connects to gut health and inflammation and its effect on metabolism and insulin levels? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ Good calorie amount? Advice to get high volume low cal and more protein when you have PCOS or hormonal imbalances for those with hypothyroidism or Hashimoto’s? ▸ Fitter or kidding myself: how to talk to your doctor about this if you're on a GLP-1 like semaglutide or tirzepatide? ▸ Testosterone how long does it take to work while doing intermittent fasting if you're on a GLP-1 like semaglutide or tirzepatide? ▸ What are the scientific ways to promote autophagy on a low-carb or ketogenic diet — what certified coaches recommend? ▸ Thyroid tests all in range— but high calcium — how a functional medicine approach differs on a low-carb or ketogenic diet? ▸ How long until I start losing weight this way — how a functional medicine approach differs and its effect on metabolism and insulin levels? 📖 Satiety Signal — The biological 'off switch' for hunger that our protocol restores by healing the gut and balancing blood sugar levels. ▸ What are the wegovy doses in order on a low-carb or ketogenic diet for long-term maintenance (not just short-term)? ▸ Got diagnosed today, where do i go from here — what do certified weight loss coaches recommend: best practices and common mistakes to avoid? ▸ Crust check 🔥 ribeye done right for long-term maintenance (not just short-term)? ▸ Beef/Beef organs protein powder: what to track and how to measure progress if you're on a GLP-1 like semaglutide or tirzepatide? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ When the fatigue is real: how to talk to your doctor about this for people with insulin resistance? ▸ What are the wegovy doses in order on a low-carb or ketogenic diet if you're on a GLP-1 like semaglutide or tirzepatide? 📖 Metabolic Reset — The process of retraining your body to utilize stored fat for fuel and regulating hunger hormones so you can maintain yo… ▸ Anyone remember the metal lid you had to use a butter knife to pop off: what to track and how to measure progress: best practices and common mistakes to avoid? ▸ What to do if you have to eat late dinners?? How to process the dinner quicker so I'm not burping all night long while doing intermittent fasting: what to track and how to measure progress? ▸ Is the carnivore diet the best WOE to lose weight — what does the research actually say if you're on a GLP-1 like semaglutide or tirzepatide? 📖 Muscle Sarcopenia — The dangerous loss of lean muscle mass often seen in traditional 'crash diets' or high-dose GLP-1 use, which we combat t… ▸ Is anyone else worried about judgment from others for those with hypothyroidism or Hashimoto's if you're on a GLP-1 like semaglutide or tirzepatide? ▸ Omnipod. Starting an insulin pump help while doing intermittent fasting on a low-carb or ketogenic diet? ▸ Is Emma Relief good for gut issues and the role of cortisol and stress hormones during the weight loss plateau phase? 📖 Tirzepatide Micro-Dosing — The practice of using the lowest effective dose to achieve results, minimizing side effects while maximizing the longevi… ▸ Do you guys eat 100% clean all the time — what does the research actually say for those with hypothyroidism or Hashimoto’s? 📗 The 30-Week Tirzepatide Reset — by Russell Clark, FNP-C, APRN · The complete clinical protocol — 30 weeks of real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 3 ▸ Traveling with IBS-D to a 5-day conference in San Diego: how do you manage food — what most people get wrong about this on a low-carb or ketogenic diet? ▸ Did L. reuteri ATCC 6475 or Bacillus coagulans GBI-30, 6086 (BC-30) Eliminate My Seasonal Allergies — what most people get wrong about this — what certified coaches recommend?