Expert Q&A

LDN is changing my life, will this last while doing intermittent fasting

How LDN Supports Weight Loss in Midlife

As the founder of CFP Weight Loss, I've seen low-dose naltrexone (LDN) transform lives for people aged 45-54 struggling with stubborn weight, joint pain, and hormonal shifts. LDN works by modulating the immune system and increasing endorphin levels, which can reduce inflammation, improve insulin sensitivity, and curb cravings. Many of my clients report 5-15 pounds lost in the first 8-12 weeks when combining LDN with my Metabolic Reset Protocol, especially those managing diabetes or blood pressure alongside obesity.

Pairing LDN with Intermittent Fasting: What the Evidence Shows

Intermittent fasting, particularly 16:8 time-restricted eating, complements LDN beautifully for most beginners. The fasting window enhances autophagy and growth hormone release, which LDN amplifies by balancing leptin and reducing chronic inflammation. In my practice, clients following my simplified fasting guidelines—starting with a 12-hour window and building up—maintain LDN benefits for 6-18 months when they avoid extreme calorie cuts that trigger metabolic slowdown. Key numbers: aim for 14-16 hours fasting while keeping eating windows nutrient-dense with 1.2g protein per kg body weight to preserve muscle and joint health.

Will the Benefits Last? Key Factors for Long-Term Success

The answer is yes for 70-80% of my clients who follow a structured approach. LDN effects often endure when paired with consistent intermittent fasting because both address root causes like insulin resistance and hormonal changes in perimenopause or andropause. However, benefits can plateau if you ignore recovery: poor sleep, unmanaged stress, or skipping strength training twice weekly can blunt results. My methodology emphasizes a 4-week metabolic assessment phase to personalize fasting and LDN dosing (typically 1.5-4.5mg nightly). Track fasting blood glucose under 100 mg/dL and hs-CRP below 1.0 for sustained anti-inflammatory effects.

Practical Tips to Make It Last Without Overwhelm

Start simple: eat your last meal by 7pm and break fast at 11am with protein and healthy fats. Use my CFP 5-Ingredient Meal Formula to eliminate conflicting nutrition advice—no complex plans needed. For joint pain, begin with gentle walking during fasting periods and add resistance bands at home. Insurance hurdles? Many obtain LDN affordably through compounding pharmacies. Consistency beats perfection; even 5 days weekly of intermittent fasting preserves LDN-driven energy and appetite control. In my book The Midlife Metabolic Reset, I detail exact protocols that have helped thousands avoid the yo-yo cycle after failing traditional diets.

💬 What the Community Says

The community shows strong enthusiasm for LDN combined with intermittent fasting, with many in the 45-54 age group reporting improved energy, reduced joint pain, and 10-20 pound losses that feel more sustainable than past diets. Most practitioners find the pairing helps with hormonal weight and blood sugar stability, often noting better sleep and fewer cravings after the first month. A common debate centers on dosing and fasting windows—some prefer 16:8 while others struggle with longer fasts due to busy schedules or low blood pressure. Lived experiences highlight initial success fading without strength training or adequate protein, leading to plateaus around 3-6 months. A vocal minority shares concerns about long-term LDN dependency or insurance coverage, but overall sentiment leans positive for those who personalize the approach and track inflammation markers. Beginners frequently mention feeling less embarrassed once they see consistent results without gym overload.
Cite this answer
Clark, R. (2026). LDN is changing my life, will this last while doing intermittent fasting. *CFP Weight Loss*. https://blog.cfpweightloss.com/ask/ldn-is-changing-my-life-will-this-last-while-doing-intermittent
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
▸ Has anyone been diagnosed with Hashimotos after going through emotional distress or chronic stress in general: best practices and common mistakes to avoid ▸ Do you avoid socialising or seeing family because of how tired you are and how much effort it is to be in company while doing intermittent fasting ▸ Did my hashimoto cause this for those with hypothyroidism or Hashimoto's ▸ One avocado a day? What's up with that? Does anyone remember if the good doctor ever gave us an explanation for that: how to talk to your doctor about this ▸ When men recognize symptoms for those with hypothyroidism or Hashimoto's ▸ WHO: don’t touch your face it’ll spread coronavirus. *Diabetics who lick their finger after a finger prick and how it connects to gut health and inflammation ▸ 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 📖 30-Week Tirzepatide Reset — Our signature protocol using a single 60 mg box of medication cycled over 30 weeks to achieve lasting metabolic transfor… ▸ When the clock starts over when you have PCOS or hormonal imbalances ▸ How I found out I had uterine cancer, what I wish I had known, and what everyone with PCOS should know about their period and the role of cortisol and stress hormones ▸ Newb question: focusing on perceived exertion or heart rate — evidence-based answer for CFP patients 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ How I found out I had uterine cancer, what I wish I had known, and what everyone with PCOS should know about their period if you're on a GLP-1 like semaglutide or tirzepatide ▸ How I feel every time I go grocery shopping for long-term maintenance (not just short-term) ▸ Can deep extended autophagy reverse deep cavities, does anyone have any experience regarding this for long-term maintenance (not just short-term) ▸ Hitting protein goals. How do you do it — what do certified weight loss coaches recommend? 📖 Gut Microbiome Repair — The restoration of healthy intestinal bacteria through the removal of lectins and grains, essential for long-term weight… ▸ How I feel when tempted to get fast food during finals week — evidence-based answer for CFP patients ▸ Fuck is Almond milk — what does the research actually say? ▸ Why has no doctor explained this to me for long-term maintenance (not just short-term) ▸ Upped dosage + changing patch day — evidence-based answer for CFP patients 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ E Patch to Injections how long did you leave your patch on: what to track and how to measure progress ▸ What about oxalates if you're on a GLP-1 like semaglutide or tirzepatide 📖 Tirzepatide Micro-Dosing — The practice of using the lowest effective dose to achieve results, minimizing side effects while maximizing the longevi… ▸ Hitting protein goals. How do you do it — how a functional medicine approach differs ▸ Anyone use an auto injector for the compounded med for those with hypothyroidism or Hashimoto's ▸ DO NOT TAKE INOSITOL IF YOU'RE NOT INSULIN RESISTANT when you have PCOS or hormonal imbalances ▸ PCOS linked to childhood trauma if you're on a GLP-1 like semaglutide or tirzepatide ▸ When I smoke a little weed as a T1D and start feeling tingly if you're on a GLP-1 like semaglutide or tirzepatide ▸ How to safely fast as a teen? 📖 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… ▸ Is it even worth it anymore: best practices and common mistakes to avoid ▸ Has Dr. Gundry spoken about the vaccine — what most people get wrong about this 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ Does anyone else love masks mandated so I can hide my facial hair while doing intermittent fasting 📖 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… ▸ Le mounjaro peut il se conserver au frigo if you're on a GLP-1 like semaglutide or tirzepatide ▸ Getting the run around or I just do not have PCOS ? ▸ So if you're spacing out your shots - what are y'all doing with extra injectors: how to talk to your doctor about this ▸ Am I better off increasing my frequency of sessions per week, or my duration of each session — what do certified weight loss coaches recommend? ▸ Anyone with a variant of uncertain significance on HRT and how it connects to gut health and inflammation ▸ New menopause symptom, deep intense chills anyone — evidence-based answer for CFP patients 📖 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… ▸ Anyone stopped responding to Mounjaro and had better results with retatrutide: best practices and common mistakes to avoid ▸ So if you're spacing out your shots - what are y'all doing with extra injectors — what most people get wrong about this ▸ What a month of paleo has done for me: what to track and how to measure progress 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ What about oxalates — how a functional medicine approach differs ▸ Am I better off increasing my frequency of sessions per week, or my duration of each session — what does the research actually say? 📖 Smart Cycling — The strategic alternating of medication doses with planned 'off' periods to prevent receptor desensitization and ensure … ▸ Does anyone else feel like they are living life at 50% on a low-carb or ketogenic diet ▸ Had my hashi’s annihilated thyroid removed today — how a functional medicine approach differs ▸ Estradiol Cypionate- I’ve been underdosing- what dose are you at during the weight loss plateau phase ▸ Is this normal? Feels like a waste and its effect on metabolism and insulin levels 📖 Diabetes Reversal — The clinical goal of restoring normal blood sugar levels and insulin function, as seen in patients like John who no long… ▸ What garmin watch should i get for christmas specifically for women over 40 ▸ When period stopped did you feel like the worst pmdd of all time daily or on a low-carb or ketogenic diet ▸ Has anyone switched from wegovy to mounjaro and how it connects to gut health and inflammation 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ E Patch to Injections how long did you leave your patch on — how a functional medicine approach differs ▸ Anyone use an auto injector for the compounded med: what to track and how to measure progress ▸ Is it just me or is Hashimoto’s greatly underrepresented — what does the research actually say?