Dr. Michael Mosley

We pay tribute to our dear friend and colleague, Dr. Michael Mosley.

Michael was an integral part of our lives, bringing a wealth of knowledge, dedication, and compassion to his work.

Throughout his distinguished career, Michael made significant contributions to his field, earning respect and admiration from all walks of life. His unwavering commitment to excellence and his innovative approach to science and health have left an indelible mark on the lives of many.

Michael was not only a remarkable professional but also a kind and generous individual. He was always willing to lend a helping hand, share his wisdom, and support those around him. His infectious enthusiasm and genuine care for others made him a beloved figure in our organisation.

We will remember Michael for his outstanding achievements, his compassionate nature, and his unwavering dedication to improving the lives of others. His legacy will continue to inspire us all.

Our thoughts and condolences go out to his family, friends, and all who had the privilege of knowing him. He will be deeply missed.

Rest in peace, Michael.


As a highly engaging science communicator, Michael made a significant impact on countless lives. If you would like to share a tribute, please use this dedicated space and feel inspired by others who embraced Michael’s passion for better health and successfully changed their life.

All natural weight loss and fasting products

Shakes, protein, gut health

Go to shop

12 week guided weight loss programme for better health

Eat better, feel fitter, start today!

7 day free trial

Weight loss for better health

Working with Dr Michael Mosley, we use the latest scientific research to create a game-changing approach to weight loss and healthy living.

Through a 12-week supported programme, an ongoing monthly subscription, an engaging community and a range of products to support your journey, The Fast 800 is here to help you maintain a life-long healthy lifestyle.

Read more

The Fast 800 AU – Embarking on a Healthier Journey, Your Way

The Fast 800 AU is your first step towards a sustainable, empowering transformation. Thanks to our extensive research, we’re redefining how Australians lose weight and achieve wellness through a comprehensive approach, including a diet plan for intermittent fasting, nutritional education, exercise, and a supportive community.

Introducing Our Game-Changing Shakes

Life can be hectic, and on days when you’re pushed for time, maintaining a balanced, calorie-controlled diet can be a challenge. That’s where our shakes help – they’re a time-saving solution to ensure you never compromise on nutritional value. Our meal replacement shakes are filled with 100% natural ingredients, with nutritional profiles that contribute to a healthy lifestyle and help bolster and sustain weight loss.

Ready in an easy 30 seconds with no cooking required, our weight loss shakes offer a simple, no-fuss alternative for meals when you’re on the go. They’re just 200 calories per meal to provide careful portion control, which helps prevent overeating – a common speed bump on the road to weight loss.

Unleashing the Power of Intermittent Fasting Australia-Wide

Explore the world of intermittent fasting in Australia. The Fast 800 is not a fad diet, but a sustainable lifestyle designed to be part of your day-to-day life.

Looking for impactful, sustainable weight loss results? The Fast 800 is a scientifically-sound approach to the weight loss experience, combining expert guidance, evidence-based principles, and an encouraging community, ensuring you’re supported on your wellness journey.

Building a Tailored Intermittent Fasting Programme

The Fast 800 fasting programme is customised to align with your goals, circumstances and preferences. Regardless of whether you’re new to intermittent fasting or wanting an upgrade to your current routine, our comprehensive programme is your formula for long-term success.

Diet Plan For Intermittent Fasting: More Than Just Dieting

Your custom intermittent fasting diet is designed to help you shed excess weight while inspiring a love for eating healthily and mindfully. The Fast 800 empowers you with the tools and knowledge you need to maintain healthy food and movement habits for life.

Holistic Fitness, Informed by Science

At The Fast 800, everything we do is based on solid research and advice from trusted health experts. We give you simple tools to not only lose weight but to get healthier and feel great in your everyday life.

A Simpler Approach to Fitness

Achieving and maintaining your fitness and weight loss goals can be hassle-free with our diet plan for intermittent fasting. Forget about complex calculations and time-consuming planning – say hello to a straightforward, guided approach that’s a perfect fit for your busy life.

Join The Fast 800 Revolution

Join us in a groundbreaking approach to weight loss and wellness where your health transformation is within your grasp! With The Fast 800, we combine scientific research with a supportive community to offer an intermittent fasting programme that’s changing lives.

Familiarise yourself with our extensive resources, try new recipes from a wide range of cuisines, browse our support products and read through inspiring success stories from members of our community. With The Fast 800, you are part of a network of like-minded individuals across Australia, all sharing a collective intermittent fasting journey.

Are you ready to kick-start your wellness journey with our expert intermittent fasting programme? Sign up to The Fast 800 today and tap into the potential of the intermittent fasting diet. Discover a healthier, revitalised version of you today.

How we help

The Fast 800 is the umbrella term for a healthy lifestyle based on scientific evidence, encompassing diet, movement and mindfulness.

Our programmes, products and resources are developed alongside Dr Michael Mosley and based on years of experience with fasting, the 5:2™, high intensity interval training (HIIT) and the Mediterranean diet.

The goal of The Fast 800™ and our programme is to empower you with the tools and knowledge to live a healthy lifestyle long-term. As a result, there are three flexible dietary approaches that can be followed and are designed to suit your goals and circumstances; you can switch easily between each approach as your needs change.

Our story

We are a group of doctors and health professionals who grew frustrated with the increasing gap between what has long been widely accepted as “healthy eating” and the latest evidence on what actually works.

Based on some of the most promising and studied areas of research, Dr Michael Mosley and a team of professionals developed The Fast 800 online programme, shakes and multivitamins, to help people lose weight, stay healthy and live longer.

Lucy's weight loss

2 stone
12 pounds

  • Less hip pain and discomfort
  • More confidence
  • Rosacea cleared up

What our community says about us

"I lost 26kg in 24 weeks!"

Before trying The Fast 800, I had no structure to my meals. Thanks to The Fast 800, following The Very Fast 800 and then The New 5:2 on the online programme, I’ve lost 26kg and my mind is so much clearer.

- Tracy

“I loved the exercise videos, it was like having my own personal trainer!”

- Clarissa, Worcestershire

Lost 12lbs

“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

Start your 7 day free trial today!

Our science-based Programme is a personal trainer, nutritionist and member-only app. Access your meal plan, shopping list, recipes, exercise plan and Health Coaches any time, anywhere. We're ready when you are!

"If you're looking for a straightforward, immune-boosting plan to kickstart your health for the new year, there's one wellness plan that's stood the test of time thanks to its simple structure and effective results - The Fast 800 founded by Dr Michael Mosley."

Glamour Magazine

    Your Cart
    Your cart is emptyReturn to Shop