Join the fasting community
Track your progress, share your journey, and connect with fasters from around the world.
FastingInPractice speaks your language
🇧🇷 Portuguese · 🇮🇷 Farsi · 🇵🇱 Polish · 🇯🇵 Japanese · 🇸🇦 Arabic · 🇮🇹 Italian · and 17 more
Find your community →Fasting-friendly recipes
From the research library
protocolsRead →womens healthRead →
16:8 vs 2MAD vs OMAD: A Complete Comparison
A side-by-side breakdown of the three most popular intermittent fasting protocols — 16:8, two meals a day, and one meal a day — so you can choose the right one.
There are three intermittent fasting protocols that most people end up choosing between: 16:8, 2MAD, and OMAD. They're all forms of time-restricted eating, but they differ significantly in difficulty, results, and who they suit.
Can Intermittent Fasting Cause Irregular Periods?
Intermittent fasting can affect menstrual cycles in some women. Learn when this happens, why it occurs, and how to fast without disrupting your hormones.
Yes, aggressive or poorly timed intermittent fasting can cause irregular periods in some women. However, moderate fasting done correctly — with attention to eating enough calories, eating the right foods, and starting gradually — rarely disrupts menstruation.
Where would you like to start?
Knowledge Quiz
I want to learn about fasting
Build your foundation step by step, from the basics to advanced protocols.
Fasting Style Quiz
I want to find my fasting style
Answer a few quick questions and get a protocol matched to your routine.
Research Library
I want to research fasting
Dig into evidence-based articles and studies on how fasting works.
Recipes · Fasting-Friendly
I want fasting-friendly recipes
Browse meals built to break your fast and keep you on track.