Expert Q&A

Going for my first 36 hours. Any tips?

Preparing for Your First 36-Hour Fast

I’ve guided thousands of adults aged 45-54 through their initial extended fasts. A 36-hour fast means going from dinner one day until breakfast two days later—roughly skipping two full meals. This window allows your body to fully deplete glycogen stores and begin meaningful fat-burning, which is especially helpful when hormonal changes like perimenopause or low testosterone make traditional diets ineffective.

Start hydrated. Drink 3–4 liters of water across the fast. Add a pinch of high-quality sea salt or take an electrolyte supplement with 1000 mg sodium, 300 mg potassium, and 200 mg magnesium. This prevents the headaches and fatigue that derail most first-timers, particularly those managing blood pressure or diabetes medications.

Managing Hunger and Energy Crashes

Hunger peaks usually hit around hour 18 and again at hour 30. Sip black coffee, plain green tea, or bone broth (under 50 calories) if needed—many in our program find this acceptable without breaking metabolic benefits. When cravings intensify, practice the 10-minute rule: wait, walk slowly, then reassess. Most people notice the wave passes.

For those with joint pain, avoid intense workouts. Instead, try 15–20 minutes of gentle stretching or chair yoga. Light movement improves insulin sensitivity without stressing inflamed joints. Track your blood glucose if you have diabetes; many see numbers drop 15–25 points after 24 hours, but always follow your physician’s guidance on medication adjustments.

Breaking the Fast Safely

End your 36 hours with a small, easy-to-digest meal: think scrambled eggs with spinach, avocado, and olive oil. Avoid large carb-heavy meals that can spike blood sugar and cause discomfort. In The Midlife Reset Protocol, I emphasize refeeding with 25–30 grams of protein and healthy fats to stabilize hormones and prevent rebound hunger.

Expect possible fatigue or irritability on your first attempt—that’s normal. Most beginners in our community lose 2–4 pounds of water weight and bloat in the first cycle. Consistency across 2–3 fasts per month compounds results far better than perfection on day one.

Common Pitfalls and Long-Term Success

Don’t obsess over the scale daily. Focus on reduced joint discomfort, steadier energy, and looser clothing. Insurance rarely covers structured programs, so our approach uses simple, repeatable habits that fit busy middle-income schedules—no complicated macros or gym memberships required. If embarrassment about your weight has kept you from asking for help before, know this: thousands have started exactly where you are.

After your fast, journal what worked. Adjust electrolytes or timing for round two. You’ve already taken the hardest step by beginning.

💬 What the Community Says

The community shows cautious optimism about first 36-hour fasts, with many 45-54 year olds sharing stories of surviving on electrolytes and black coffee despite initial headaches and low energy. Most agree that joint pain improves after the 24-hour mark, but there is lively debate on whether bone broth "breaks" the fast—some insist under 50 calories is fine while purists avoid anything but water. Newcomers managing diabetes frequently report lower morning glucose readings yet stress checking with doctors first. A vocal minority mentions strong hunger waves around hour 18 that pass with distraction walks, while others admit they only lasted 28 hours on their debut attempt. Overall sentiment is supportive: people celebrate small wins like reduced bloating and encourage gradual progression rather than perfection, especially for those burned by past diet failures.
Clark, R. (2026). Going for my first 36 hours. Any tips?. *CFP Weight Loss*. https://blog.cfpweightloss.com/ask/going-for-my-first-36-hours-any-tips
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.

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