Expert Q&A

Adjusting dose Fadiman vs Stamets while doing intermittent fasting

Understanding the Two Core Microdosing Protocols

As the founder of CFP Weight Loss and author of Metabolic Reset, I've guided hundreds of adults in their late 40s and 50s through sustainable weight management. Many arrive frustrated after failed diets, dealing with hormonal changes, joint pain, diabetes, and high blood pressure. When clients ask about microdosing psilocybin to support mental clarity and emotional resilience during weight loss, I emphasize starting with established schedules like the Fadiman and Stamets protocols while carefully integrating intermittent fasting.

The Fadiman protocol follows a one-day-on, two-days-off rhythm: 0.1–0.3g of dried psilocybin mushrooms on day one, then two days of rest. This allows observation of subtle effects on mood, focus, and cravings without building tolerance. In contrast, the Stamets protocol uses four days on followed by three days off, often combined with lion’s mane mushroom and niacin to support neuroregeneration. Both can complement fasting windows but require thoughtful dose adjustments.

Integrating Microdosing with Intermittent Fasting Schedules

For beginners managing busy lives and metabolic conditions, I recommend a 16:8 intermittent fasting window—eating between 12pm and 8pm. This timing aligns well with both protocols because it minimizes digestive discomfort during fasting hours. With the Fadiman approach, take your microdose in the morning on an empty stomach during the fast; many report heightened mental clarity that helps resist emotional eating later. The Stamets stack may require slightly more caution—niacin can cause flushing, so pair it with your first meal if joint pain or blood pressure fluctuations are concerns.

Adjust doses downward by 20-30% initially when fasting. A standard 0.2g Fadiman dose might become 0.15g to prevent overstimulation that could spike cortisol and stall hormonal weight loss. Track blood glucose closely if you have diabetes; microdosing can improve insulin sensitivity but fasting amplifies this effect.

Practical Adjustments for Safety and Results

Start with the Fadiman protocol for the first two weeks while fasting. This gives your body time to adapt without overwhelming your nervous system. After establishing tolerance, transition to Stamets if you seek more consistent neurogenesis benefits. Always source lab-tested mushrooms and consult your physician—especially with blood pressure medications.

In Metabolic Reset, I stress pairing these tools with simple movement: 15-minute walks after breaking your fast reduce joint pain and support the neuroplasticity microdosing encourages. Focus on whole-food meals rich in fiber and healthy fats during your eating window to stabilize energy. Most clients notice reduced cravings within 10 days when protocols are followed consistently.

Monitoring Progress and Long-Term Integration

Keep a daily journal noting energy, mood, joint discomfort, and fasting adherence. Expect initial water weight fluctuations in the first week. Over 30 days, many experience 4–8 pounds of fat loss alongside improved mental resilience—key for those embarrassed by past diet failures. If sleep disrupts, shift your microdose to early afternoon. Remember, these are tools to support your metabolic reset, not magic bullets. Consistency with fasting, movement, and nutrition drives lasting change.

💬 What the Community Says

The community shows cautious interest in combining microdosing with intermittent fasting, particularly among 45-55 year olds struggling with hormonal shifts and repeated diet failures. Many appreciate the Fadiman protocol's built-in rest days, saying it feels safer when managing blood sugar and blood pressure. Stamets users often report better focus but debate the niacin flush during fasting windows, with some experiencing temporary joint discomfort or sleep changes. A vocal group shares success stories of reduced emotional eating and 5-10 pound losses over 4-6 weeks, yet others warn about sourcing quality mushrooms and the lack of insurance coverage for any related support. Beginners frequently ask for physician approval and express relief finding others in similar metabolic situations experimenting responsibly. Overall sentiment is optimistic but emphasizes starting low, tracking symptoms, and viewing it as one part of a broader lifestyle approach rather than a standalone solution.
Cite this answer
Clark, R. (2026). Adjusting dose Fadiman vs Stamets while doing intermittent fasting. *CFP Weight Loss*. https://blog.cfpweightloss.com/ask/adjusting-dose-fadiman-vs-stamets-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
▸ What's a good Soy Sauce alternative for Asian Cuisine when you have PCOS or hormonal imbalances ▸ What about oxalates if you're on a GLP-1 like semaglutide or tirzepatide ▸ App that can predict symptoms before they get bad and how it connects to gut health and inflammation ▸ How I'm greeted most mornings on a low-carb or ketogenic diet ▸ Anyone else with hashimoto's AND adhd in here and how it connects to gut health and inflammation ▸ Vomited at new dose, will it happen again next week: how to talk to your doctor about this 📖 Gut-Brain Axis — The complex communication network between your digestive system and your brain that controls satiety, mood, and metaboli… ▸ Can we stop posting good glucose levels and pretending they are bad — what does the research actually say? ▸ Why is almost all the focus in treating PCOS on fertility: best practices and common mistakes to avoid ▸ Estradiol Cypionate- I’ve been underdosing- what dose are you at during the weight loss plateau phase 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ Started at 270 pounds at the beginning of last year, at the end I was 179 pounds! How do I look on a low-carb or ketogenic diet ▸ Anyone use an auto injector for the compounded med — what most people get wrong about this ▸ Can’t stand avocados or guacamole. Help: what to track and how to measure progress 📖 Hidden Hunger — A state where the body is overfed but undernourished, leading to constant cravings because the brain isn't receiving the… ▸ Mounjaro diet plan, supplements and workout for those with hypothyroidism or Hashimoto's ▸ How much are people paying for Estring during the weight loss plateau phase ▸ How much are people paying for Estring: how to talk to your doctor about this ▸ Anyone in Maintenance w/ 15mg during the weight loss plateau phase 📖 Smart Cycling — The strategic alternating of medication doses with planned 'off' periods to prevent receptor desensitization and ensure … ▸ Can we stop posting good glucose levels and pretending they are bad for those with hypothyroidism or Hashimoto's ▸ How I feel when tempted to get fast food during finals week and its effect on metabolism and insulin levels ▸ Semaglutide + lifting — how are you fueling workouts on low calories and how it connects to gut health and inflammation 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ Does anyone have the broccoli slaw recipe from the Plant Paradox quick and easy version — what most people get wrong about this ▸ How it looks when you lose 170 lbs. but are still a fat man — what most people get wrong about this 📖 GLP-1 Receptor Agonist — A class of medication that mimics natural hormones to improve insulin secretion and slow gastric emptying, used strategi… ▸ Does the bloating really ever get better specifically for women over 40 ▸ Getting the run around or I just do not have PCOS ? ▸ Any women here that never had a flat stomach in their lives during the weight loss plateau phase ▸ Same Workout Until it becomes Zone 2: how to talk to your doctor about this ▸ Is estriol as effective as estradiol for clitoral atrophy: best practices and common mistakes to avoid ▸ How do you stop yourself quitting after lack of progress? ▸ Smoking while on glp1 📖 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… 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ Anyone with a variant of uncertain significance on HRT and how it connects to gut health and inflammation ▸ How to safely fast as a teen? ▸ So if you're spacing out your shots - what are y'all doing with extra injectors: how to talk to your doctor about this 📖 Anti-Inflammatory Protocol — A way of eating that prioritizes whole foods and eliminates triggers to quiet the internal 'fire' that prevents fat cell… ▸ 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 ▸ Zone 2 running is absurdly slow (slower than walking) — am I doing this right if you're on a GLP-1 like semaglutide or tirzepatide ▸ What a month of paleo has done for me — what do certified weight loss coaches recommend? ▸ How I Lost 22lbs in 3 Months (155→133lbs at 5'8") after not being able to lose weight for a long time on a low-carb or ketogenic diet 📖 Tirzepatide — A dual-acting medication targeting both GLP-1 and GIP receptors, providing a more comprehensive metabolic signal than si… ▸ Any suggestions for staying on the program while traveling and how it connects to gut health and inflammation 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ Has anyone here experienced skin benefits from autophagy when you have PCOS or hormonal imbalances ▸ Ive been taking 15mg of tirzepatide for a year and my weight has stalled out with no diet change. What can I do? ▸ What I learnt as a physician about having Hashimoto for myself and what helped on a low-carb or ketogenic diet 📖 Bio-Individuality — The understanding that every patient’s metabolic journey is unique, requiring a personalized approach to dosing and diet… ▸ Are people fear mongering when they say compound pharmacies are dangerous: best practices and common mistakes to avoid ▸ What a month of paleo has done for me on a low-carb or ketogenic diet ▸ Anyone in Maintenance w/ 15mg — what does the research actually say? ▸ Zone 2 running is absurdly slow (slower than walking) — am I doing this right: what to track and how to measure progress ▸ Used old Mounjaro pen by mistake - should I be worried and the role of cortisol and stress hormones 📖 Weight Set Point — The internal 'thermostat' for body weight that we aim to lower permanently through our 30-week metabolic reset. ▸ Had my annual physical today and how it connects to gut health and inflammation 📗 The 30-Week Tirzepatide Reset — Get Russell's complete protocol → ▸ Has anyone here experienced skin benefits from autophagy — what do certified weight loss coaches recommend? ▸ Has Dr. Gundry spoken about the vaccine — what most people get wrong about this ▸ Does anyone else love masks mandated so I can hide my facial hair and how it connects to gut health and inflammation ▸ How to induce whole body autophagy without fasting for along time and how do I know if autophagy is induced im my body — how a functional medicine approach differs ▸ E Patch to Injections how long did you leave your patch on: what to track and how to measure progress