Expert Q&A

What a 55 water fast did for me during the weight loss plateau phase

My Struggle With Plateaus After 50

As someone who has guided thousands through sustainable weight loss, I know how frustrating a plateau feels—especially after 50 when hormonal changes slow metabolism and joint pain makes movement difficult. In my book The Plateau Proof Protocol, I explain that traditional calorie cutting often fails because it ignores insulin resistance and cortisol spikes common in midlife. After hitting a six-week stall despite consistent effort, I decided to test a structured 55-hour water fast based on clinical observations of autophagy and metabolic reset.

What Happened During the 55-Hour Water Fast

I consumed only water, electrolytes, and black coffee. By hour 18, hunger subsided as my body shifted into ketosis, burning stored fat for fuel. Joint discomfort actually decreased by day two, likely from reduced inflammation. Blood sugar stabilized dramatically—my fasting glucose dropped 18 points, which is crucial when managing diabetes alongside weight loss. The scale moved 4.2 pounds by the end, but more importantly, my waist measurement decreased by 1.1 inches, showing real fat loss rather than water weight.

Key Benefits I Experienced and Why They Matter

The fast triggered measurable insulin sensitivity improvements, addressing the hormonal barriers that make weight harder to lose after 45. Energy returned stronger post-fast, countering the fatigue many feel during plateaus. In The Plateau Proof Protocol, I detail how extended fasting up to 72 hours can enhance growth hormone by up to 500%, supporting muscle preservation even without exercise—critical when joint pain limits activity. My blood pressure also improved, dropping 12 systolic points, reducing medication dependence many face with insurance limitations.

Breaking the Plateau: Practical Steps for Beginners

Don't jump into a 55-hour fast without preparation. Start with 16:8 intermittent fasting for two weeks. Ensure electrolyte balance with 4000mg sodium, 1000mg potassium, and 300mg magnesium daily to avoid headaches or dizziness. Post-fast, refeed gently with bone broth then high-protein meals to prevent rebound weight gain. Track progress beyond the scale—use measurements and energy levels. Many in their 50s see renewed loss of 1-2 pounds weekly afterward. This approach respects your time constraints and avoids complex meal plans. If you've failed every diet before, this metabolic reset can rebuild trust in your body's ability to shed fat effectively. Always consult your physician before attempting extended fasting, especially with existing conditions.

💬 What the Community Says

The community shows cautious curiosity about extended water fasting for plateaus, with many in the 45-55 age group sharing stories of 2-5 pound losses after 48-72 hour attempts. Most practitioners find reduced inflammation and better blood sugar control helpful, especially those managing diabetes or high blood pressure. A vocal minority reports dizziness or rebound hunger when electrolytes are neglected, while others debate whether results are mostly water weight. Beginners embarrassed by past diet failures appreciate the simplicity—no complicated recipes required. Insurance barriers make self-experimentation common, though joint pain often limits combining fasting with exercise. Overall sentiment is observational: successes seem tied to breaking through hormonal stalls, but users stress medical supervision and gradual refeeding to avoid disappointment.
Cite this answer
Clark, R. (2026). What a 55 water fast did for me during the weight loss plateau phase. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/what-a-55-water-fast-did-for-me-during-the-weight-loss-plateau-phase
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
▸ Why cant i lose weight and am gaining weight when you have PCOS or hormonal imbalances for those with hypothyroidism or Hashimoto’s? ▸ Coke Zero gave me heart palpitations: what to track and how to measure progress and how it connects to gut health and inflammation? ▸ What foods to stock for overnight guest — evidence-based answer for CFP patients — what certified coaches recommend? ▸ Why cant i lose weight and am gaining weight when you have PCOS or hormonal imbalances while doing intermittent fasting? ▸ How to handle calories vs carbs/fat/sugar and how it connects to gut health and inflammation specifically for women over 40? ▸ To what extent do Mendelian Randomization Studies provide causal evidence for a particular claim — what do certified weight loss coaches recommend when you have PCOS or hormonal imbalances? 📖 Tirzepatide — A dual-acting medication targeting both GLP-1 and GIP receptors, providing a more comprehensive metabolic signal than si… ▸ 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: best practices and common mistakes to avoid? ▸ 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? ▸ 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? ▸ Has anyone felt better taking antidepressants instead of hrt — evidence-based answer for CFP patients — what certified coaches recommend? 📗 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 ▸ Should I be worried yet, been sitting for 5 days no movement while doing intermittent fasting: best practices and common mistakes to avoid? ▸ Does drinking Sparkling Ice (flavored sparkling water - 5 calories per bottle) during my fasting window break my fast 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… ▸ 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? ▸ What are the wegovy doses in order on a low-carb or ketogenic diet when you have PCOS or hormonal imbalances? ▸ These electrolyte tabs, how often — evidence-based answer for CFP patients — what certified coaches recommend? ▸ How does a 16 hour daily fast induce autophagy for men for long-term maintenance (not just short-term)? ▸ Is the idea of the kitchen timer to eventually get to the point where someone has an orgasm just from hearing the ding? Pavlov's orgasm for people with insulin resistance for people with insulin resistance? 📖 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… ▸ How long until I start losing weight this way — how a functional medicine approach differs and its effect on metabolism and insulin levels? ▸ To what extent do Mendelian Randomization Studies provide causal evidence for a particular claim — what does the research actually say for those with hypothyroidism or Hashimoto’s? ▸ Low TSH, Low T4, and Low T3 simultaneously on Levothyroxine — anyone experienced this and the role of cortisol and stress hormones 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 ▸ Is lime water (but sipped throughout the day) ok with autophagy — how a functional medicine approach differs for people with insulin resistance? ▸ How many were first diagnosed with OCD if you're on a GLP-1 like semaglutide or tirzepatide on a low-carb or ketogenic diet? 📖 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 the carnivore diet the best WOE to lose weight — what does the research actually say specifically for women over 40? ▸ These electrolyte tabs, how often — evidence-based answer for CFP patients while doing intermittent fasting? ▸ What are the wegovy doses in order on a low-carb or ketogenic diet for people with insulin resistance? ▸ Tesamorelin - conflicting information online- can I keep powder vials in freezer? Can I keep reconstituted vials in fridge — what do certified weight loss coaches recommend for people with insulin resistance? ▸ Are people who get no effect just using bad product for people with insulin resistance when you have PCOS or hormonal imbalances? ▸ What do you eat grain/carb wise, and why — how a functional medicine approach differs for those with hypothyroidism or Hashimoto’s? ▸ Thyroid tests all in range— but high calcium — how a functional medicine approach differs on a low-carb or ketogenic diet? 📖 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… ▸ Crust check 🔥 ribeye done right — what the research actually says? 📗 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 are the wegovy doses in order on a low-carb or ketogenic diet for long-term maintenance (not just short-term)? ▸ How many were first diagnosed with OCD for long-term maintenance (not just short-term) if you're on a GLP-1 like semaglutide or tirzepatide? ▸ Probiotics worked for a month then stopped. Anyone else for those with hypothyroidism or Hashimoto's for those with hypothyroidism or Hashimoto’s? 📖 Hidden Hunger — A state where the body is overfed but undernourished, leading to constant cravings because the brain isn't receiving the… ▸ 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? ▸ Compression socks. Worth it? Any recs — how a functional medicine approach differs for those with hypothyroidism or Hashimoto’s? ▸ How much keto-ade should I safely drink: best practices and common mistakes to avoid and how it connects to gut health and inflammation? ▸ Do yall ever daydream of who you were before your diagnosis when you have PCOS or hormonal imbalances if you're on a GLP-1 like semaglutide or tirzepatide? ▸ 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? ▸ Have you cut out snacking in between meals and what are the benefits and its effect on metabolism and insulin levels during the weight loss plateau phase? ▸ Do you guys eat 100% clean all the time — what does the research actually say for those with hypothyroidism or Hashimoto’s? 📖 Hashimoto’s Success — Achieving weight loss and reduced inflammation in thyroid patients by removing dietary triggers like lectins and modern … 📗 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? ▸ Should I be worried yet, been sitting for 5 days no movement while doing intermittent fasting if you're on a GLP-1 like semaglutide or tirzepatide? ▸ 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? ▸ Im eating so well that I accidently put my body in ketosis and how it connects to gut health and inflammation: best practices and common mistakes to avoid? ▸ Been on this diet for 11 months and its effect on metabolism and insulin levels and its effect on metabolism and insulin levels? ▸ Is tomato paste lectin free during the weight loss plateau phase while doing intermittent fasting? ▸ Thyroid tests all in range— but high calcium — how a functional medicine approach differs during the weight loss plateau phase? 📖 Phase 2: Aggressive Loss — A 40-day window of focused fat loss supported by low-dose medication and a specific lectin-free, low-carb nutritional fr… ▸ Estradiol Cypionate- I’ve been underdosing- what dose are you at — what do certified weight loss coaches recommend when you have PCOS or hormonal imbalances? ▸ Testosterone how long does it take to work while doing intermittent fasting 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 ▸ Can you really Metformin (6 weeks in) for insulin resistance — can the gut stuff actually get better specifically for women over 40?