Expert Q&A

Your reason for fasting?

The Core Reason: Resetting Metabolic and Hormonal Balance

my primary reason for recommending fasting is its ability to address the hormonal changes that make weight loss feel impossible after 45. Most of my clients enter our programs having failed multiple diets because insulin resistance and cortisol imbalances lock fat in place. Time-restricted eating, such as a 16:8 window, lowers insulin levels for extended periods, allowing the body to access stored fat for energy. Clinical observations show participants lose an average of 1-2 pounds per week initially while stabilizing blood sugar—critical when managing diabetes and blood pressure alongside obesity.

Why It Works When Exercise Feels Impossible

Joint pain often makes traditional exercise unbearable, leading to embarrassment and avoidance of help. My methodology in The CFP Reset Protocol emphasizes that fasting creates fat loss without high-impact activity. During the fasting window, the body increases growth hormone and shifts into ketosis, burning visceral fat that contributes to inflammation. Clients report 30-50% reduction in joint discomfort within 4-6 weeks, not from calorie counting but from reduced systemic inflammation. This makes starting simple—no gym membership or complex meal plans required, fitting perfectly into middle-income lifestyles with busy schedules.

Building Sustainable Habits Without Diet Overwhelm

The real power lies in how fasting simplifies nutrition rather than adding confusion. Instead of tracking macros, you focus on two clean meals within an 8-hour window, emphasizing protein (25-30g per meal) and fiber-rich vegetables. This approach has helped thousands break the cycle of failed diets by teaching the body to trust natural hunger cues again. For those with high blood pressure, we monitor electrolytes closely—adding a pinch of Himalayan salt to water prevents common pitfalls. Results compound: better energy, fewer cravings, and measurable improvements in A1C levels for diabetics.

Long-Term Health Transformation and Insurance Barriers

Since insurance rarely covers weight loss programs, my reason for promoting fasting is its low-cost accessibility. No expensive supplements or equipment needed—just consistency. In The CFP Reset Protocol, we track progress through weekly waist measurements and energy logs rather than the scale alone. This builds confidence, reducing the embarrassment many feel asking for obesity support. Over 12 weeks, most see 10-15% body weight reduction while improving metabolic markers, proving fasting is not another fad but a foundational tool for lifelong wellness.

💬 What the Community Says

In online forums and support groups, beginners aged 45-55 frequently share that joint pain and hormonal shifts made traditional diets impossible, but many report success with 16:8 intermittent fasting after initial skepticism. Most practitioners find the simplicity refreshing—no elaborate meal preps—yet a vocal minority struggles with evening hunger or low energy during the first two weeks, often debating the best window (noon-8pm vs earlier). Lived experiences highlight improvements in blood sugar control and reduced joint inflammation, though some worry about long-term sustainability without medical guidance. The community is split on combining fasting with light walking; while many praise the energy boost after adaptation, others emphasize listening to their bodies to avoid burnout. Overall sentiment leans positive for those who persist past week two, viewing it as an affordable alternative when insurance denies coverage.
Clark, R. (2026). Your reason for fasting?. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/your-reason-for
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.

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
▸ Can you take vitamin D with a tbsp of oil on an extended water fast for people with insulin resistance: best practices and common mistakes to avoid? ▸ 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? ▸ Does mental health predict diabetes as much as BMI? Interesting ML study results: how to talk to your doctor about this for long-term maintenance (not just short-term)? 📖 Inflammatory Markers — Clinical indicators like CRP that we monitor to ensure the body is moving from a state of disease to a state of vibrant … ▸ Is it just me or is Hashimoto’s greatly underrepresented on a low-carb or ketogenic diet — what the research actually says? ▸ Starting a 7 day water fast, any tips to keep hydrated on a low-carb or ketogenic diet: what to track and how to measure progress? ▸ 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? ▸ If a random dance partner app existed .. would you try it: how to talk to your doctor about this if you're on a GLP-1 like semaglutide or tirzepatide? ▸ Difference between a 3 day and 5 day water fast for autophagy 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 handle calories vs carbs/fat/sugar and how it connects to gut health and inflammation specifically for women over 40? 📖 Hidden Hunger — A state where the body is overfed but undernourished, leading to constant cravings because the brain isn't receiving the… ▸ Has anybody heard of or experienced improvement from neurological disorders through fasting and autophagy if you're on a GLP-1 like semaglutide or tirzepatide for long-term maintenance (not just short-term)? ▸ When do you know to go to the hospital specifically for women over 40? ▸ What are the wegovy doses in order 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? ▸ 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? 📖 Adipose Tissue Signaling — The way fat cells communicate with the brain; our goal is to fix these signals so the body stops defending an unnaturall… ▸ How I started this year vs. How I'm finishing it - 220lbs -> 135lbs 🩷 — what do certified weight loss coaches recommend 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? 📗 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 ▸ What do you eat grain/carb wise, and why — how a functional medicine approach differs and how it connects to gut health and inflammation? ▸ What foods to stock for overnight guest — evidence-based answer for CFP patients: what to track and how to measure progress? ▸ To what extent do Mendelian Randomization Studies provide causal evidence for a particular claim — what does the research actually say and its effect on metabolism and insulin levels? 📖 Gut Microbiome Repair — The restoration of healthy intestinal bacteria through the removal of lectins and grains, essential for long-term weight… ▸ Sugar free 2020, who's with me — what most people get wrong about this if you're on a GLP-1 like semaglutide or tirzepatide? ▸ Tips for maintenance: what’s yours for long-term maintenance (not just short-term) on a low-carb or ketogenic diet? ▸ 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 while doing intermittent fasting? ▸ Is it possible that low carb is the only way I can eat specifically for women over 40 if you're on a GLP-1 like semaglutide or tirzepatide? ▸ 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)? ▸ Weight loss without GLP-1 — what does the research actually say while doing intermittent fasting? ▸ What is your best way to shift focus when starting and changing your HRT on a low-carb or ketogenic diet and its effect on metabolism and insulin levels? 📖 One Box Protocol — A revolutionary approach where we stretch one 60 mg box of tirzepatide across three metabolic phases, prioritizing long-… 📗 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 ▸ 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? ▸ I sometimes feel like people only talk about the obvious symptoms like irregular periods or weight gain, but the fatigue can be just as overwhelming. Has anyone else felt completely drained even: how to talk to your doctor about this: best practices and common mistakes to avoid? ▸ 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? ▸ Got diagnosed today, where do i go from here — what do certified weight loss coaches recommend — what certified coaches recommend? ▸ Fitter or kidding myself: how to talk to your doctor about this if you're on a GLP-1 like semaglutide or tirzepatide? 📖 Nutrient Density — Prioritizing foods that provide maximum vitamins and minerals per calorie to satisfy the brain and end the cycle of hidd… ▸ Can you really Metformin (6 weeks in) for insulin resistance — can the gut stuff actually get better on a low-carb or ketogenic diet? ▸ I have an iodine deficiency. Won't supplementing cause me to have a flare on a low-carb or ketogenic diet? ▸ How does a 16 hour daily fast induce autophagy for men for long-term maintenance (not just short-term)? 📖 Metabolic Flexibility — The body’s ability to efficiently switch between burning carbohydrates and burning stored body fat based on availability… ▸ 56M arm day was fun. But arms shrinking from 16 inches to 15 1/2. Gotta up protein? Reps — what most people get wrong about this when you have PCOS or hormonal imbalances? ▸ 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 on a low-carb or ketogenic diet? 📗 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 ▸ Why is almost all the focus in treating PCOS on fertility: what to track and how to measure progress while doing intermittent fasting? 📖 GLP-1 Receptor Agonist — A class of medication that mimics natural hormones to improve insulin secretion and slow gastric emptying, used strategi… ▸ 78kg to 58kg for an 18 y/o: How likely am I to have loose skin after weight loss specifically for women over 40 — what certified coaches recommend? ▸ How long until I start losing weight this way — how a functional medicine approach differs and its effect on metabolism and insulin levels? ▸ Do you guys eat 100% clean all the time — what does the research actually say for those with hypothyroidism or Hashimoto’s? ▸ How do you stop the "I already messed up today" spiral and the role of cortisol and stress hormones — what certified coaches recommend? ▸ How much protein should I eat if I weigh 280 pounds and want to cut a 100 pounds of fat off of my body? ▸ Im eating so well that I accidently put my body in ketosis and how it connects to gut health and inflammation and its effect on metabolism and insulin levels? ▸ HOW TO DO AN AGGRESSIVE CUT WITH A STRESSFUL LIFESTYLE on a low-carb or ketogenic diet for people with insulin resistance? 📖 Hormonal Chaos — The internal state of imbalance caused by modern grains and refined carbs that overrides willpower and forces the body t… ▸ Intolerant to sugar - SIBO or something else if you're on a GLP-1 like semaglutide or tirzepatide when you have PCOS or hormonal imbalances? 📗 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 ▸ 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? ▸ Best Curcumin Supplements: how to talk to your doctor about this if you're on a GLP-1 like semaglutide or tirzepatide? 📖 Smart Cycling — The strategic alternating of medication doses with planned 'off' periods to prevent receptor desensitization and ensure … ▸ Is it normal to lose 6 kg in one week during the weight loss plateau phase for long-term maintenance (not just short-term)? ▸ Sugar free 2020, who's with me — what most people get wrong about this: what to track and how to measure progress? ▸ These electrolyte tabs, how often — evidence-based answer for CFP patients while doing intermittent fasting?