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11 min read·Apr 8, 2025
OMAD Diet: The Complete Guide to One Meal a Day
OMAD, or One Meal A Day fasting, explained: how it works, who it's for, what to eat in your single meal, the real risks, and how it compares.
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MCC Editorial Team
Intermittent Fasting
Science of fasting: 16:8, 5:2, OMAD and time-restricted eating.
23 articles
Intermittent fasting shifts the question from what you eat to when you eat. The main approaches — 16:8 time-restricted eating, the 5:2 pattern, alternate-day fasting, and OMAD — all compress eating into defined windows. Research suggests they can support weight management and may improve some metabolic markers, though much of the benefit appears to come from the calorie reduction fasting naturally produces.
This section covers how each protocol works in practice: what breaks a fast, how to manage hunger and energy in the first weeks, what to eat when your window opens, and how fasting interacts with exercise, sleep, and coffee. We stick to the evidence, flag where it's still thin, and note who should avoid fasting altogether — it isn't suitable for everyone.
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13 min read·Apr 8, 2025
Intermittent Fasting 16:8 Meal Plan: A Complete 7-Day Guide
Everything you need to start a 16:8 intermittent fasting practice — structuring your eating window, breaking the fast wisely, and a 7-day meal plan.
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MCC Editorial Team
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17 min read·Apr 12, 2026
What Breaks a Fast? 40 Foods and Drinks Tested
Does black coffee, diet soda, or gum break a fast? We test 40 foods and drinks against the rules for fat loss, insulin, autophagy, and gut rest.
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MCC Editorial Team
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16 min read·Apr 12, 2026
Intermittent Fasting for Women: Hormones and Cycles
Fasting affects women differently than men. See how it interacts with estrogen, cortisol, and the menstrual cycle, and how to adapt your protocol.
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MCC Editorial Team
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13 min read·Apr 12, 2026
Intermittent Fasting and Exercise: Keep Your Muscle
Can you build or keep muscle while fasting? Learn how to time workouts, hit your protein targets, and structure training around your eating window.
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MCC Editorial Team
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11 min read·Apr 12, 2026
Best Foods to Break Your Fast: Timing and Choices
What you eat when you break a fast matters as much as the fast itself — here's how to choose foods that are gentle on digestion and support your goals.
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MCC Editorial Team
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14 min read·Apr 12, 2026
Intermittent Fasting Results: What to Expect Weekly
What actually happens week by week on intermittent fasting — from early hunger spikes to metabolic shifts and plateaus — mapped out so you know what's normal and what isn't.
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MCC Editorial Team
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12 min read·Dec 3, 2025
Women and Intermittent Fasting: Risks and Safer Protocols
Fasting research skews male, yet women often see different hormonal outcomes. Here's why female physiology responds differently, and how to adapt protocols.
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Elena Vasquez
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14 min read·Nov 10, 2025
The Fasting Mimicking Diet: Valter Longo's Science
The fasting mimicking diet cuts calories to 34–54% of normal for five days, triggering autophagy and lower IGF-1. Here's what Longo's trials actually show.
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Elena Vasquez
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13 min read·Jul 14, 2025
16:8 Intermittent Fasting: A Beginner's Guide
The 16:8 method — eat within 8 hours, fast for 16 — is the most studied time-restricted eating protocol. Learn the science, benefits, and who should avoid it.
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Sarah Mitchell
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14 min read·Aug 5, 2025
Extended Fasting 24-72 Hours: Phases, Autophagy, Risks
Fasting past 24 hours pushes your body into deep ketosis and autophagy — but also real risk territory. Here's what happens hour by hour, and the electrolyte and refeeding rules that keep it safe.
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Elena Vasquez
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12 min read·Dec 15, 2025
Meal Timing and Circadian Rhythm: Why When You Eat Matters
The same calories eaten at different times produce different metabolic outcomes. Learn how circadian rhythm governs insulin, digestion, and fat storage.
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Elena Vasquez
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14 min read·May 3, 2026
Intermittent Fasting: What Happens to Your Body Hour by Hour
From hour 1 to hour 72, a science-backed hour-by-hour timeline of glycogen depletion, fat burning, ketosis, autophagy, and hormone shifts during a fast.
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Sarah Mitchell
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13 min read·May 3, 2026
16:8 Intermittent Fasting: A Beginner's Guide
A complete beginner's guide to 16:8 fasting — choosing your eating window, what to eat and drink, handling hunger, and realistic results week by week.
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Sarah Mitchell
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12 min read·May 3, 2026
Intermittent Fasting: 7 Evidence-Based Benefits
The 7 most robustly evidenced benefits of intermittent fasting — fat loss, insulin sensitivity, autophagy, brain and heart health, longevity, and inflammation.
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James Chen
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14 min read·Jun 20, 2026
Intermittent Fasting Meal Plan: Complete 7-Day Guide
A complete 7-day intermittent fasting meal plan covering 16:8, 5:2, and OMAD, with a nutrition framework, grocery list, and world-cuisine meal swaps.
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Sarah Mitchell
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22 min read·Jul 10, 2026
The Best Intermittent Fasting App for 2026: A Complete Guide to Tracking Your Fast (Featuring FastFit)
Why tracking your fast actually matters, what to look for in a fasting app, and a full walkthrough of FastFit — a free intermittent fasting tracker for iOS and Android — plus how to pair it with a web-based fasting timer.
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Elena Vasquez
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10 min read·Aug 21, 2026
16:8 Intermittent Fasting: How to Track Your Eating Window Without Overthinking It
Tracking a 16:8 fasting window doesn't need a calorie app or a spreadsheet — just two timestamps a day. Here's the low-friction way to run it, adjust it, and know when to stop.
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MCC Editorial Team
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11 min read·Aug 27, 2026
Hydration During Intermittent Fasting: What Breaks a Fast and What Doesn't
Fasting quietly removes the fluid your meals normally supply, and lower insulin makes you excrete more. Here is what you can drink during a fasting window, why electrolytes matter by hour twelve, and how to avoid the headache.
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MCC Editorial Team
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14 min read·Mar 1, 2026
Intermittent Fasting: The Complete Science-Backed Guide (16:8, 5:2, OMAD)
Everything you need to know about intermittent fasting — the science, the protocols, the benefits and how to start safely. Written by a PhD nutritional scientist.
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Elena Vasquez
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11 min read·Mar 22, 2026
Intermittent Fasting for Women: What's Different and What the Research Shows
Intermittent fasting doesn't work the same for women as it does for men — hormonal timing changes the rules. A PhD nutritional scientist breaks down what actually matters for menstrual cycle and reproductive health.
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Elena Vasquez
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10 min read·Mar 24, 2026
What Breaks a Fast? Coffee, Supplements, Cream and the Truth About 35+ Common Foods
Does black coffee break a fast? What about a dash of cream? Apple cider vinegar? Supplements? This guide cuts through the confusion with the science of what actually matters during a fasting window.
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Elena Vasquez
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11 min read·Mar 8, 2026
Extended Fasting (24–72 Hours): A Medical Guide to Water Fasting
Prolonged water fasting has powerful potential benefits — and real risks. A research-based guide to 24-hour, 48-hour and 72-hour fasts: who should try it, how to do it safely, and what to expect.
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Elena Vasquez
Intermittent Fasting: Common Questions
Does intermittent fasting actually work for weight loss?▾
Research suggests intermittent fasting can produce meaningful weight loss, but controlled trials generally find it performs about as well as conventional calorie restriction — not better. Its main advantage may be adherence: some people find a time rule easier to follow than counting calories. The best approach is the one you can sustain.
What can I drink during a fast without breaking it?▾
Water, black coffee, and plain tea are generally considered fine — they contain virtually no calories and don't meaningfully raise insulin. Anything with sugar, milk, or cream technically breaks a fast. Zero-calorie sweeteners are debated; evidence of a significant effect is limited, but purists avoid them. Hydration matters more during fasting, so drink freely.
Is 16:8 fasting safe to do every day?▾
For most healthy adults, daily 16:8 appears well tolerated in studies of up to a year. However, it isn't appropriate for people who are pregnant or breastfeeding, those with a history of eating disorders, people with diabetes on glucose-lowering medication, or children and teens. If you have any medical condition, check with your doctor before starting.
Will fasting make me lose muscle?▾
Some studies note slightly greater lean-mass loss with fasting protocols, but the effect appears small and largely preventable. Eating adequate protein (commonly suggested around 1.6g per kg of body weight for active people) within your eating window and doing resistance training preserves muscle effectively. Longer multi-day fasts carry more risk than daily time-restricted eating.