Science-Backed Articles
Fasting Knowledge Base
Practical fasting guides with sources and explanations of the limits of current evidence. This content is educational, not medical advice.
17 articles
How to Find Your Fasting Window for Free
Find your fasting time for free with simple start-and-end calculations, overnight examples, and a live timer. Understand fasting windows versus eating windows.
How to Start Intermittent Fasting: A Beginner's Step-by-Step Guide
Learn exactly how to start intermittent fasting today. Step-by-step guide covering the best protocol for beginners, what to eat, common mistakes, and what to expect in week one.
What Breaks Autophagy? Why There Is No Simple Checklist
Food intake affects nutrient-sensing pathways, but it is inaccurate to say that a sip of a particular drink stops all autophagy immediately.
Does Sleep Count as Fasting? (Yes, and Here is the Science)
Yes, sleep absolutely counts as fasting. Discover how sleep fits into your intermittent fasting schedule, its biological benefits, and how to maximize it.
Does Lemon Water Break a Fast?
Wondering if lemon water breaks your fast? Learn how lemon water affects intermittent fasting, ketosis, and autophagy, plus the benefits of drinking it.
Intermittent Fasting and Exercise: Timing, Fuel, and Recovery
Plan exercise around meals and recovery. Learn why fasted cardio does not guarantee greater fat loss and why health needs take priority over a fasting timer.
5:2 Diet vs 16:8: Which Is Better for Beginners?
Comparing the 5:2 diet and 16:8 intermittent fasting for beginners. Learn the differences, benefits, and which method is easiest to start for weight loss.
Intermittent Fasting for Women Over 40: A Comprehensive Guide
Explore the benefits and considerations of intermittent fasting for women over 40, with science-backed insights and practical tips.
Is Sparkling Water OK for Fasting? Waterloo Explained
Can you drink Waterloo while fasting? Learn when sparkling water fits intermittent fasting, what to check on the label, and when different fasting rules apply.
When Does Ketosis Start During Fasting? Timing Varies
There is no single hour at which everyone enters ketosis while fasting.
How Long to Fast for Autophagy? What We Know
There is no validated number of fasting hours that guarantees increased autophagy throughout the human body.
How Long Does Intermittent Fasting Take to Show Results?
Results vary: learn what meal timing can and cannot tell you about weight changes, energy, and health markers without relying on a promised weekly timeline.
Intermittent Fasting for Beginners — The Complete 2026 Guide
Everything you need to start intermittent fasting safely. Which protocol to choose, what to expect in weeks 1–4, common mistakes, and a step-by-step start plan.
16:8 vs 18:6 Intermittent Fasting — Which Is Better for You?
Comparing 16:8 and 18:6 protocols on autophagy, weight loss, ease of adherence, and which type of person should choose each one.
What Breaks a Fast? Food, Drinks, and Different Rules
For an ordinary dietary fast defined as a calorie-free interval, foods and calorie-containing drinks end the interval.
Fasting Stages Explained: Why Timing Varies
The body does not switch through identical stages at fixed hours for everyone.
Does Coffee Break a Fast?
Black coffee has near-zero calories and does not meaningfully raise insulin — but what about espresso, bulletproof coffee, or decaf? Science-backed answer.