Expert Q&A

Anyone here doing a combo of low carb and keto — how a functional medicine approach differs

Understanding Low Carb and Keto Basics

I've seen thousands struggle with standard low carb and keto diets. Low carb typically limits intake to under 130 grams daily, focusing on vegetables, proteins, and healthy fats while cutting refined sugars. Keto pushes further into nutritional ketosis, usually under 50 grams of carbs, 70-80% fat, and moderate protein to shift your body from burning glucose to burning fat for fuel. For adults aged 45-54 facing hormonal changes, this can initially drop 5-10 pounds quickly but often stalls due to metabolic adaptation.

The Functional Medicine Difference: Root Causes Over Symptoms

Unlike conventional keto that treats everyone the same, my functional medicine approach in the CFP Method examines your unique biology. We test for insulin resistance, thyroid function, cortisol levels, and gut microbiome imbalances that make weight loss harder after 45. Standard keto ignores why your hormones shifted—perimenopause estrogen decline can increase belly fat by 20-30%—while functional protocols personalize macros. For example, someone with high blood pressure might need higher potassium from leafy greens and magnesium supplementation to stabilize both glucose and joints.

Addressing Joint Pain, Diabetes, and Overwhelm

Joint pain making movement impossible? My approach starts with reducing inflammatory omega-6 oils and adding anti-inflammatory foods like wild salmon and turmeric before ramping up activity. In the CFP Method, we use short 12-14 hour intermittent fasting windows that fit busy schedules instead of complicated meal plans. For those managing diabetes, we track continuous glucose monitors to keep post-meal spikes under 30 points, preventing the blood sugar crashes that lead to cravings. This isn't another failed diet—it's rebuilding metabolic flexibility so insurance-covered labs actually guide your progress.

Practical Steps to Make It Sustainable

Begin by auditing your last three failed diets for hidden carbs or skipped sleep, both of which sabotage ketosis. Follow my CFP plate model: half non-starchy vegetables, quarter quality protein, quarter healthy fats like avocado or olive oil. Test ketones at 0.5-3.0 mmol/L but don't chase high numbers if energy is low. Supplement strategically—berberine for insulin sensitivity, omega-3s at 2-3 grams daily for joint relief. Most clients lose 1-2 pounds weekly without feeling deprived once root causes like leaky gut are repaired. This functional lens turns low carb and keto from temporary fixes into lifelong metabolic health.

💬 What the Community Says

The community shows strong interest in combining low carb with keto but expresses frustration with one-size-fits-all plans. Many in the 45-54 age group report initial success followed by plateaus linked to thyroid issues or menopause, leading them to explore functional medicine practitioners for hormone and inflammation testing. Practitioners frequently share positive experiences with personalized macros and gut health focus, noting better energy and reduced joint pain compared to strict standard keto. A vocal minority debates the cost of functional lab work since insurance rarely covers it, while others appreciate the emphasis on sustainable habits over perfection. Lived experiences highlight how addressing root causes like cortisol helps break the cycle of yo-yo dieting, though some still feel overwhelmed choosing supplements or interpreting tests without professional guidance. Overall, users value the holistic view but call for more accessible entry points for middle-income families.
Cite this answer
Clark, R. (2026). Anyone here doing a combo of low carb and keto — how a functional medicine appro. *CFP Weight Loss*. https://blog.cfpweightloss.com/ask/anyone-here-doing-a-combo-of-low-carb-and-keto-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.

📖 The 30-Week Tirzepatide Reset — Get the Book →
Have a follow-up question?
More Questions 200 answered
▸ Best recipe book — what do certified weight loss coaches recommend? ▸ Eyelid myokymia/twitching caused by oral progesterone — what does the research actually say? ▸ WHO: don’t touch your face it’ll spread coronavirus. *Diabetics who lick their finger after a finger prick for long-term maintenance (not just short-term) ▸ For those that struggled with side effects, have you been able to space out your doses successfully for long-term maintenance (not just short-term) ▸ Anyone had improvement in symptoms after already eating a clean plant based diet — evidence-based answer for CFP patients ▸ Can I get an upvote for the true enemy of diabetes for long-term maintenance (not just short-term) ▸ Has anyone tried this lectin free lifestyle living with PCOS — what do certified weight loss coaches recommend? 📖 Metabolic Stall — A plateau in weight loss often caused by hidden inflammation or hormonal adaptation, which we break using our specific 7… ▸ Vomited at new dose, will it happen again next week: how to talk to your doctor about this 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ How do you stop yourself quitting after lack of progress? ▸ Has anyone had facial swelling and numbness as a symptom/flare up? ▸ Did my hashimoto cause this — what does the research actually say? 📖 Cellular Detox — The process of clearing out metabolic waste and reducing cellular stress to allow for more efficient energy production a… ▸ How do you gauge progress from zone 2 — what does the research actually say? ▸ Anyone use an auto injector for the compounded med — what most people get wrong about this ▸ Anyone here works in sales? Does carnivore have positive or negative effect on you? ▸ Should we start a new subreddit, that prioritizes evidence-based treatment approaches and science when you have PCOS or hormonal imbalances ▸ Do people feel comfortable and satisfied on PP specifically for women over 40 📖 Insulin Resistance — A condition where your cells stop responding to insulin, locking fat in storage; our protocol is designed to unlock thes… 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ A 3ml vial of the CJC-1295 IPAMORELIN stack roughly how many dosages do you get out of that? ▸ Eyelid myokymia/twitching caused by oral progesterone and the role of cortisol and stress hormones ▸ Depressive symptoms from non-stick air fryer for people with insulin resistance 📖 Tirzepatide — A dual-acting medication targeting both GLP-1 and GIP receptors, providing a more comprehensive metabolic signal than si… ▸ Does anyone else feel like they are living life at 50% for those with hypothyroidism or Hashimoto's ▸ Anyone stopped responding to Mounjaro and had better results with retatrutide during the weight loss plateau phase ▸ Had my annual physical today and how it connects to gut health and inflammation ▸ How I found out I had uterine cancer, what I wish I had known, and what everyone with PCOS should know about their period specifically for women over 40 📖 Ketogenic Foundation — Using low-carbohydrate principles to keep insulin low, allowing the tirzepatide to work more effectively at lower doses. ▸ Has anyone used Willow for long-term maintenance (not just short-term) ▸ What the hell is wrong with this sub during the weight loss plateau phase 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ Can i lose weight without overcomplicating it? 📖 Nutrient Density — Prioritizing foods that provide maximum vitamins and minerals per calorie to satisfy the brain and end the cycle of hidd… ▸ What garmin watch should i get for christmas and its effect on metabolism and insulin levels ▸ What is the texture of fried fat trimmings like for people with insulin resistance ▸ Has anyone here experienced skin benefits from autophagy when you have PCOS or hormonal imbalances ▸ POLL At what strength did Semaglutide become effective for you: best practices and common mistakes to avoid ▸ How I finally stopped crashing after workouts — the training structure that actually works with Hashimoto's during the weight loss plateau phase 📖 The Clark Protocol — Our evidence-based framework that combines clinical nurse practitioner expertise with personal experience to solve the o… ▸ Smoking while on glp1 ▸ Sanity Check: Is MyNetDiary accurate? 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ So if you're spacing out your shots - what are y'all doing with extra injectors — what does the research actually say? ▸ How I'm greeted most mornings for those with hypothyroidism or Hashimoto's ▸ Anyone worried about the FDA crackdown — what do certified weight loss coaches recommend? 📖 Strategic Fat Loading — A critical 48-hour phase at the start of the reset where we prime the body with healthy fats to trigger the transition f… ▸ How I feel when tempted to get fast food during finals week: what to track and how to measure progress ▸ Has anyone been diagnosed with Hashimotos after going through emotional distress or chronic stress in general — what do certified weight loss coaches recommend? ▸ Same Workout Until it becomes Zone 2 — what does the research actually say? ▸ Upped dosage + changing patch day: how to talk to your doctor about this ▸ Feeling judged for wanting kids younger with PCOS? ▸ Recent flare up, wondering if it can cause back acne and product recommendations? 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ How I Lost 22lbs in 3 Months (155→133lbs at 5'8") after not being able to lose weight for a long time — what do certified weight loss coaches recommend? 📖 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… ▸ Opened monjuaro pen is it safe to use and its effect on metabolism and insulin levels ▸ How to lose weight while working fulltime at a warehouse job? ▸ I broke my 5 day water fast with pizza. What does this mean for my body? ▸ How To Speed Up Your Metabolism After 40: best practices and common mistakes to avoid 📖 Smart Cycling — The strategic alternating of medication doses with planned 'off' periods to prevent receptor desensitization and ensure … ▸ Mounjaro diet plan, supplements and workout when you have PCOS or hormonal imbalances ▸ What a 55 water fast did for me — what do certified weight loss coaches recommend? ▸ Is estriol as effective as estradiol for clitoral atrophy — what do certified weight loss coaches recommend?