A step-by-step Online Programme for weight loss and long term health

A tailored, sustainable lifestyle plan, which is the culmination of years of experience with, and scientific data on, fasting, exercise and the Mediterranean diet. Join the tens of thousands who have found success on The Fast 800 with intermittent fasting, achievable exercise and mouth-watering food.

Start your 7-day free trial today, then get 25% off your 12-week programme!

join now - 25% off

How it works : In a nutshell

Personalise the programme to you

Take our assessment to get the right plan for you, based on The Fast 800 approaches.

Lose weight & re-programme your body

Lose weight and stomach fat, regain your health and fitness.

Learn to live a healthier life

Incorporate The Fast 800 into your daily routine and sustain your results.

What do you get?

Meal plans and shopping lists

Time-saving weekly meal plans and automated shopping lists to get you organised
More than 500 tasty and easy recipes designed by our nutritionist, to support good health and immunity
Plans to support three meals a day, or two meals a day to extend your fasting window
Three approaches – The Very Fast 800, The New 5:2 and The Way of Life – for long-term sustainability
Vegetarian and non-vegetarian options
Keto meal plan variations now available on The Very Fast 800
Flexible recipe serves to help when cooking for others

Online assessment

Ascertain the right meal plan for you and tailor your level of fasting
Assess your fitness to determine your exercise plan
Start tracking your weight, blood sugars, sleep and more!

Exercise plans and training guides

12-week guided exercise plans – beginner to advanced levels
Six days a week of planned exercise – including resistance training, stretching guides, and HIIT motivation
A library of Pilates and additional workout videos – created by our exercise experts
All can be done in your living room and with no equipment

Real support as you need it

Group support on our lively Community – motivation and guidance from your fellow members and our Health Coaches
Tools and trackers to help you create accountable goals and measure your progress
Daily dashboards to enable focus and habit-building as well as rewarding engagement
Core learning content, plus access to exclusive articles
Mindfulness meditations and more!

Ready to get started?
JOIN NOW

As seen in

What others say about the programme

“I cannot tell you how happy I am, I’ve been type 2 diabetic for 5 years and they were about to start me on medication, I honestly feel like I’ve been saved from a lifetime of ill health – this diet has been the best life change I have ever done and Dr Michael Mosley deserves a knighthood for it. Thank you so so much, from myself and my family”

Clarissa, Worcestershire Lost 10kgs

“My husband and children kept telling me, and their friends, how much they enjoyed the meals. I mean seriously, who goes on a calorie restricted diet and expects gourmet meals that are easy to prepare and look like a work of art!”

Angela, Western Australia Lost 12kgs

“Five months after starting The Fast 800 I reached my target of three stones lost. I’ve gone on to lose a few more pounds to bring my total to 45lbs. I have a whole new figure, necessitating a whole new wardrobe! I feel wonderful, am much more active, and have no joint pain. This WORKS!”

Yvonne, Dorset Lost 45lbs

“One word-Brilliant! I lost 28lb in 9-10 weeks and 7 inches off my waist. Also dropped 2 clothes sizes. Love this programme! 👍 I can’t praise The Fast 800 enough!!!”

Anne, Country Durham Lost 13kgs