Fasting Made Easier

We'll help you succeed with the 5:2 diet and Fast Diet.

Be healthier, lose weight - and keep it off forever.

How FastDay Works

Sign up to FastDay and set your goals in our fasting diet weight loss tracker.
1. Sign up and set your weight loss goals
Get support from your friends at the FastDay 5:2 fast diet forum
2. Get help from our friendly fasting forum
Track your intermittent fasting weight loss progress with our free tracking tools
3. Track your weight loss progress
Reaching your goal weight is easier when you have group support and track your progress with FastDay
4. Succeed!

Learn About 5:2 & Intermittent Fasting

Intermittent Fasting In The Media

  • 5:2 fasting diet article in The Guardian
  • The power of intermittent fasting - the Horizon documentary by Dr Michael Mosley which started The Fast Diet.
  • Intermittent fasting in The Times
  • 'The 5:2 Diet Can Help You Lose Weight and Live Longer' in The Telegraph
  • Cutting calories 2 days a week to lose weight fast - The Daily Mail
  • The Fast Diet in The Times of India
  • 5:2 fasting in The New York Times

Find Out More...

How it works

Find out how FastDay can help you succeed at intermittent fasting to lose weight and living a healthier life.

Fasting Library

Learn more about the intermittent fasting with our helpful articles, guides and fasting science.


Find new fast day recipes, reviews, and help about food for your 5:2 diet days.


Join our friendly fasting forum community for free help, advice and support whenever you need it.

Useful stuff

See our recommended useful purchases for new intermittent fasters.