Pawel for The Fast 800

Weight loss for better health

  • Lose weight for better health long-term
  • Start the programme with a 7-day FREE trial
  • Easy and tasty meal plan recipes
  • Rapid and sustainable weight loss
  • Compatible with or without weight loss injections
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Feel strong, capable and confident

We use the latest scientific research to create a game-changing approach to weight loss and healthy living.

Easy and tasty recipes

The Fast 800 recipes are based on a fresh Mediterranean-style diet full of protein, fibre and healthy fats.

Recipes
Guided workouts

Low-impact beginner to advanced fitness workouts designed with no equipment requirements.

Exercise
Meal replacement shakes

Made with 100% natural ingredients. A time-saving solution to ensure you never compromise on nutritional value.

Products

Pawel's sustainable weight loss

  • Lost 63kg
  • Pre-diabetes into remission
  • Used programme alongside weight loss medication
  • Blood pressure improved
  • Stopped snoring

Flexible weight loss approaches to suit you

The Very Fast 800

Short-term, rapid weight loss using 800-calorie fasting days for up to 12 weeks.

The New 5:2

Intermittent fasting with two 800-calorie days per week to lose weight steadily.

The Way of Life

No calorie restriction, just nutritious food for weight maintenance and health improvement.

More than a diet programme

  • Education on science-based lifestyle best practices
  • Easy and delicious nutritionist-developed recipes
  • Tailored exercise and meal plans
  • Personalised tracker and exclusive community
  • FREE 7-day trial, start today!
Learn more

Weight loss and fasting nutrition

  • Keep you full and satisfied
  • No added sugar or simple carbs
  • High in protein, fibre and quality fats
  • 100% vegetarian and made from natural ingredients
  • Essential vitamins and minerals
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As seen in

Dr Michael Mosley, Dr Jack Mosley, Dr Clare Bailey Mosley

Our story

Dr Michael Mosley was a pioneer of intermittent fasting. In 2018, he co-founded The Fast 800 with Dr Clare Bailey Mosley to make scientifically-based weight loss and health strategies accessible to more people.

In continuing his father’s legacy, Dr Jack Mosley has written a book to emphasise the importance of sustainable diet and lifestyle habits alongside weight loss injections. We commend his writing to support weight loss medication users achieve long-term success.

Our programme and health support products, including meal replacement shakes, help people lose weight, stay healthy, and live longer and are compatible alongside weight loss medications like Ozempic and Mounjaro.

Try the Programme for free

Sign up today and your 7-day free trial begins immediately. Week 1 of your programme will start on: Monday 28th April

Frequently asked questions

Browse through our most commonly asked questions

How much does the programme cost?

What's included in the Programme?

How does the free trial work?

Who should avoid a low calorie diet or fasting?

How much weight will I lose?

Can I re-start the 12-week Programme after I start?

What is the Intermittent Fasting Diet?

How can The Fast 800 help me start intermittent fasting?