Chronicles
The One Year Fast Chronicles
This is the running log of the project: three fasting days a week for 52 weeks, written down as it happens. Each week below collects the days that were logged — what occurred, the video that went with it, and the weight, blood pressure and ketone readings taken on those dates.
Nothing here is edited after the fact beyond fixing typos. For the numbers in chart form, see the health dashboard; for the background on any term, see the fasting dictionary; for the exact procedure behind every reading, see the methodology pages.
Week 11
Aug 30
Day 71 · 1 entry
- Day 71: Predestination in the Age of AI + Upcoming DEXA & VO2 Max
Week 10
Aug 23 – Aug 29, 2026
Days 64–70 · 7 entries
- Day 64: AI, Spirituality: Will Hyperintelligent Machines Worship a Divinity?
- Day 65: 7 Prime Ministers in 10 Years: The UK General Election Debacle
- Day 66: Who Really Won the 1966 World Cup? (Plus Nutritious Pottage Under $10/Day)
- Day 67: Does Toothpaste Break a Fast? (Ketosis, Autophagy & US vs UK Teeth)
- + 3 more
Week 9
Aug 17 – Aug 22, 2026
Days 58–63 · 6 entries
- Day 58: Food Additives & Profit vs. Health: Why We Need Stricter Regulation
- Day 59: US vs. UK: Same drinks just different perspectives - Coffee & Tea
- Day 60: Medieval Diet + Modern Medicine: The Ultimate Longevity Convergence?
- Day 61: 48 Hours into a 72 Hour Fast: My Breath-based Ketone Results are improving
- + 2 more
Week 8
Aug 9 – Aug 14, 2026
Days 50–55 · 6 entries
- Day 50: Fasting Insights — A Sunday Reflection on Spirituality & Purpose
- Day 51: Breath vs. Blood Ketones — Preparing for Final 48-Hour Fast Readings
- Day 52: Breath vs. Blood Ketone Results & The Fasting Carbon Footprint
- Day 53: Fasting Rebound Eating — Why Do We Overcompensate Post-Fast?
- + 2 more
Week 7
Aug 2 – Aug 8, 2026
Days 43–49 · 7 entries
- Day 43: Medjugorje Miracles & MIT's "Jerusalem 2050'
- Day 44: US vs UK Supermarkets — Additives, Organic Quality & Vegetarian Foods
- Day 45: Barefoot vs. Footwear. NOHARM Vegan shoes. When to start a 6 Day Fast?
- Day 46: Nikola Tesla on Fasting — Energy, Bioelectricity & The Human Engine
- + 3 more
Week 6
Jul 26 – Aug 1, 2026
Days 36–42 · 7 entries
- Day 36: Was Christ a Vegetarian?
- Day 37: Should the UK TV License Be Abolished?
- Day 38: Could there be potential synergy between Fasting + Peptides?
- Day 39: Fasting Vitamins + Universal Income Thoughts
- + 3 more
Week 5
Jul 19 – Jul 25, 2026
Days 29–35 · 7 entries
- Day 29: The Was Jesus a Vegetarian or Pescatarian? 🐟🌿
- Day 30: Entering a 72-Hour Fast! ⏳ Lincoln Cathedral, Horncastle & The Fens
- Day 31: of the The Living Near Stonehenge & Smartwatch Biometrics Uncertainty
- Day 32: Is Breathing Food? Exploring Prana, Inedia, & Breatharianism
- + 3 more
Week 4
Jul 12 – Jul 18, 2026
Days 22–28 · 7 entries
- Day 22: The Ecumenical Angle ⛪ + Splitting Cardio & Weights on Fast Days
- Day 23: The Poly-Phenol Fasting Secret & A Brand New Ketone Meter! 📊
- Day 24: Looking Back at the Battle of Barnet + Week 4 Fasting Update
- Day 25: New Ketone Meter Issues + Reflecting on England’s World Cup Loss to the Majestic Messi⚽
- + 3 more
Week 3
Jul 5 – Jul 11, 2026
Days 15–21 · 7 entries
- Day 15: Not In Ketosis? Reminiscing the 1980s East End London Markets
- Day 16: (Entering Week 3)
- Day 17: Navigating Extended Fasting on a Vegetarian Diet
- Day 18: Spirulina to Break Fast + My First Triumph Spitfire Classic Car
- + 3 more
Week 2
Jun 28 – Jul 4, 2026
Days 8–14 · 7 entries
- Day 8: Entering Week 2: The Truth About Extended Fasting & Human Limits
- Day 9: 21 Ketones onof My 1-Year Fast
- Day 10: using a hydrogen water bottle
- Day 11: Marmite, Ketones, & Staying Alive! 🇬🇧
- + 3 more
Week 1
Jun 21 – Jun 27, 2026
Days 1–7 · 7 entries
- Day 1: Why I’m Fasting 3 Days a Week for a Full Year
- Day 2: 48 Hours In: The Data, Data, Data
- Day 3: How I Use a Breath Ketone Meter to Track Ketosis
- Day 4: Reflecting on Week 1 and Breaking the Fast (Project moves forward)
- + 3 more
Written by Alfie Hammersham — founder of One Year Fast, who is fasting three full days a week for 52 consecutive weeks and publishing every biomarker openly. Not a doctor; every physiological claim on this site is referenced to published research, and lived experience is labelled as such.
Physiological claims on this page are cited to peer-reviewed studies; first-hand readings come from one subject and are labelled as personal experience. See the editorial & sourcing policy for how this is written, reviewed and corrected.
About the author · Editorial policy · Corrections & contact · Medical disclaimer
