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Intermittent Fasting Mode

Fasting timer and eating window tracking for intermittent fasting

4 min readUpdated Jan 15, 2026

Intermittent Fasting Mode

Track fasting periods and eating windows with smart guidance.

Overview

Best for:
  • Intermittent fasting practitioners
  • Time-restricted eating
  • Weight management
  • Metabolic health
    • Requires: Premium subscription

    Supported Protocols

    Time-Restricted Eating

    ProtocolFastEat 16:816 hours8 hours 18:618 hours6 hours 20:420 hours4 hours OMAD~23 hours~1 hour

    Alternate Day

  • Fast day: Minimal calories (0-500)
  • Eat day: Normal eating

    • 5:2

  • 5 days: Normal eating
  • 2 days: 500-600 calories

    • Custom

    Create your own schedule.

    Key Features

    Fasting Timer

    Live timer showing:

  • Time into fast
  • Time remaining
  • Current phase

    • Eating Window

    Track your eating window:

  • When it opens
  • Time remaining
  • When to stop eating

    • Fast Tracking

    Log your fasts:

  • Planned vs actual
  • Success rate
  • Longest fasts

    • What You Track

    During Fasting Window

  • Water intake (essential!)
  • Optional: electrolytes
  • How you feel

    • During Eating Window

  • All food and drinks
  • Ensure adequate nutrition
  • Hit your daily targets

    • Fasting-Specific Features

    Fasting Phases

    We show you fasting stages:

  • 0-12h: Using liver glycogen
  • 12-18h: Fat burning begins
  • 18-24h: Deep ketosis
  • 24h+: Autophagy increases
    • Approximate—varies by individual

    Break-Fast Recommendations

    When your window opens:

  • Gentle foods suggested
  • Avoid common mistakes
  • Gradual eating guidance

    • Electrolyte Reminders

    During fasts:

  • Salt is allowed and helpful
  • Prevent headaches and fatigue
  • Mineral water suggestions

    • Setting Up Fasting Mode

  • Go to Settings > Diet Mode
  • Select Intermittent Fasting
  • Choose protocol (16:8, etc.)
  • Set your eating window hours
  • Enable timer and reminders

    • Example Setup

  • Protocol: 16:8
  • Eating window: 12:00 PM - 8:00 PM
  • Fasting window: 8:00 PM - 12:00 PM

    • Tips for Fasting Success

    Start Slowly

    New to fasting?

  • Start with 12:12
  • Gradually extend fasts
  • Listen to your body

    • Stay Hydrated

    During fasts:

  • Water is essential
  • Black coffee/tea okay
  • Add salt if needed

    • Eat Well in Your Window

    Fasting isn't magic:

  • Still need adequate nutrition
  • Focus on nutrient density
  • Don't overeat to "make up" for fasting

    • Be Flexible

    It's okay to:

  • Adjust your window
  • Skip a fasting day
  • Modify as needed

    • Know When to Stop

    Don't fast if:

  • You feel unwell
  • You have medical conditions (check with doctor)
  • You're pregnant or nursing
  • You have a history of eating disorders
    • Important: Consult a healthcare provider before starting fasting, especially with medical conditions or medications. Related Articles:
  • Choosing a Diet Mode
  • Hydration Tracking
  • Daily Food Logging
    • fastingintermittentIFeating windowtime restricted
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