Expert Q&A

Does anyone else have a fast heart rate — how a functional medicine approach differs

Moving Beyond Symptom Management

When you experience a racing heart, the standard clinical response is often to check for immediate cardiac distress and, if clear, label it as 'anxiety' or 'stress.' In my years developing the CFP Weight Loss methodology, I have found that a fast heart rate, or tachycardia, is rarely an isolated event. While conventional medicine focuses on suppressing the heart rate through beta-blockers, a functional medicine approach asks why the heart is racing in the first place. For our community members in the 45-54 age bracket, this is frequently tied to the complex interplay between the autonomic nervous system, hormonal shifts, and metabolic dysfunction.

The Cortisol and Blood Sugar Connection

One of the primary drivers of an elevated resting heart rate is insulin resistance. When your blood sugar levels are unstable, your body experiences frequent 'micro-stressors.' These fluctuations trigger the adrenal glands to release cortisol, the body's primary stress hormone. High cortisol levels keep your body in a state of 'fight or flight,' directly increasing your heart rate and making weight loss nearly impossible. In our program, we prioritize stabilizing the glycemic response not just to lose fat, but to calm the nervous system. If you find your heart racing after a high-carb meal or in the middle of the night, your body is likely signaling a metabolic emergency rather than a primary heart condition.

Nutrient Deficiencies and Hormonal Flux

For women navigating perimenopause or menopause, the decline in estrogen can make the heart more sensitive to adrenaline. This is often exacerbated by common nutrient gaps. We frequently see that a lack of magnesium—a mineral responsible for over 300 biochemical reactions—is a leading cause of palpitations and fast heart rates. Without sufficient magnesium, the heart muscle cannot properly relax. Furthermore, we look closely at the vagus nerve, which acts as the 'brake' for your heart. If your gut health is compromised or you are under chronic inflammation, your vagal tone weakens, leaving your heart rate unregulated. A functional approach utilizes targeted supplementation and anti-inflammatory nutrition to restore this internal balance.

Actionable Steps for Regulation

If you are struggling with a fast heart rate while trying to manage your weight, start by tracking your patterns. Are the episodes linked to caffeine, specific meals, or poor sleep? We recommend focusing on 'vagal toning' exercises, such as deep diaphragmatic breathing, which can physically signal your heart to slow down. Additionally, ensuring you are hitting your electrolyte targets—specifically potassium and magnesium—can provide the cellular support your heart needs to maintain a steady rhythm. By addressing these underlying triggers, we don't just mask the symptom; we build a foundation for long-term cardiovascular and metabolic health.

💬 What the Community Says

The online community is highly active regarding the intersection of heart rate and weight loss, with many users expressing frustration over being told their symptoms are 'just anxiety.' A significant portion of the conversation revolves around wearable technology; users frequently share screenshots of their resting heart rate trends, noting spikes after sugar consumption or during periods of high work stress. There is a growing sub-community discussing POTS (Postural Orthostatic Tachycardia Syndrome) and how it complicates exercise routines, particularly for those already dealing with joint pain. Many members advocate for magnesium glycinate and increased salt intake as 'game changers' for heart palpitations, though there is healthy debate regarding the safety of these self-interventions. Overall, the sentiment is one of seeking validation—people want to know that their racing heart is a physical symptom of a larger metabolic or hormonal issue rather than a psychological failing.
Clark, R. (2026). Does anyone else have a fast heart rate — how a functional medicine approach dif. *CFP Weight Loss*. https://blog.cfpweightloss.com/ask/does-anyone-else-have-a-fast-heart-rate-how-a-functional-medicine-approach
Russell Clark, 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.

Have a follow-up question?
More Questions 200 answered
Estradiol Cypionate- I’ve been underdosing- what dose are you at for those with hypothyroidism or Hashimoto's For those that struggled with side effects, have you been able to space out your doses successfully — what do certified weight loss coaches recommend? Am I better off increasing my frequency of sessions per week, or my duration of each session — what do certified weight loss coaches recommend? How should I go about asking my doc? Hitting protein goals. How do you do it and how it connects to gut health and inflammation What a 55 water fast did for me: what to track and how to measure progress E Patch to Injections how long did you leave your patch on: what to track and how to measure progress 📖 Diabetes Reversal — The clinical goal of restoring normal blood sugar levels and insulin function, as seen in patients like John who no long… Would doing this 2-3x a week help increase my Vo2 max specifically for women over 40 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → How much are people paying for Estring during the weight loss plateau phase How are we getting enough protein? Tips please during the weight loss plateau phase Recent flare up, wondering if it can cause back acne and product recommendations? Why I have to be so strict with my paleo regime if you're on a GLP-1 like semaglutide or tirzepatide Is it even worth it anymore: best practices and common mistakes to avoid 📖 Modern Wheat Dangers — The hidden threat in hybridized grains that causes gut inflammation and spikes blood sugar more aggressively than pure t… Is it even worth it anymore — what does the research actually say? What's a good Soy Sauce alternative for Asian Cuisine — what does the research actually say? Has anyone had facial swelling and numbness as a symptom/flare up? 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Has anyone been diagnosed with Hashimotos after going through emotional distress or chronic stress in general and the role of cortisol and stress hormones Is compounded semaglutide with B12 worth choosing over B6 or plain — what do certified weight loss coaches recommend? Mounjaro diet plan, supplements and workout for those with hypothyroidism or Hashimoto's Sometimes after I take my Mounjaro shot I see this at the spot I gave the shot. Anyone know why: how to talk to your doctor about this 📖 High-Dose Dependency — The pharmaceutical trap of staying on maximum medication doses indefinitely, which we avoid through our smart cycling me… How long did it take you to lose weight on the Plant Paradox': best practices and common mistakes to avoid Anyone use an auto injector for the compounded med — what most people get wrong about this I lost 40lb last year, I'm trying to lose 10lb more before I go on holiday net month, is this realistic? Best recipe book and how it connects to gut health and inflammation Does anyone else feel like they are living life at 50% on a low-carb or ketogenic diet 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Is this normal? Feels like a waste and its effect on metabolism and insulin levels 📖 Metabolic Efficiency — The state where your body processes fuel cleanly and maintains high energy levels without the need for constant snacking… Anyone have experience switching from compound injection to pill: what to track and how to measure progress Upped dosage + changing patch day specifically for women over 40 Ischias oder Piriformus Probleme and how it connects to gut health and inflammation Why has no doctor explained this to me for long-term maintenance (not just short-term) 📖 Metabolic Reset — The process of retraining your body to utilize stored fat for fuel and regulating hunger hormones so you can maintain yo… How I feel every time I go grocery shopping for long-term maintenance (not just short-term) How To Speed Up Your Metabolism After 40 during the weight loss plateau phase Any suggestions for staying on the program while traveling and how it connects to gut health and inflammation Have to stop for 3 weeks for surgery specifically for women over 40 Anyone stopped responding to Mounjaro and had better results with retatrutide and the role of cortisol and stress hormones 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Semaglutide + lifting — how are you fueling workouts on low calories and how it connects to gut health and inflammation 📖 Leptin Sensitivity — Restoring your brain's ability to hear the 'I am full' signal, which is often muted by high-sugar diets and systemic inf… Has Dr. Gundry spoken about the vaccine — what most people get wrong about this So if you're spacing out your shots - what are y'all doing with extra injectors: how to talk to your doctor about this Sanity Check: Is MyNetDiary accurate? How much are people paying for Estring for those with hypothyroidism or Hashimoto's Does anyone else just....not thermoregulate and how it connects to gut health and inflammation Can deep extended autophagy reverse deep cavities, does anyone have any experience regarding this on a low-carb or ketogenic diet 📖 Non-Scale Victories (NSV) — Improvements in energy, sleep, and disease reversal that matter just as much as the numbers on the scale during your tra… Feeling fatter once having started my restrictive diet? Same Workout Until it becomes Zone 2: how to talk to your doctor about this What garmin watch should i get for christmas specifically for women over 40 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → Upped dosage + changing patch day — evidence-based answer for CFP patients Can we stop posting good glucose levels and pretending they are bad — what does the research actually say? 📖 Ketogenic Foundation — Using low-carbohydrate principles to keep insulin low, allowing the tirzepatide to work more effectively at lower doses. Getting the run around or I just do not have PCOS ? Safest type of fiber: how to talk to your doctor about this Estradiol Cypionate- I’ve been underdosing- what dose are you at — what do certified weight loss coaches recommend?