The Fast 800 12-Week Programme
Providing the support, flexibility and guidance to help you lose weight and achieve true lifestyle change.
Flexible interactive weekly meal plans tailored to you and your goals
The Fast 800 12-Week Programme
Providing the support, flexibility and guidance to help you lose weight and achieve true lifestyle change.
What do you get?
Meal plans and shopping lists
We do the thinking, you do the doing. Save time and energy with delicious, calorie controlled, nutritionally balanced meal plans each week.
It’s tastier and easier than you’d think. Don’t believe us? Try some out here before getting started!
Meal plans and shopping lists
We do the thinking, you do the doing. Save time and energy with delicious, calorie controlled, nutritionally balanced meal plans each week.
It’s tastier and easier than you’d think. Don’t believe us? Try some out here before getting started!
Online assessment and personalisation
A customisable programme designed to work for YOU, with an initial digital assessment to tailor it to you and your goals.
Online assessment and personalisation
A customisable programme designed to work for YOU, with an initial digital assessment to tailor it to you and your goals.
Personalised exercise plans and training guides
HIIT, resistance training and incidental exercises tailored to you, no matter whether an avid athlete or struggle to get up the stairs. Get the benefits of exercise in just a few minutes a week.
Personalised exercise plans and training guides
HIIT, resistance training and incidental exercises tailored to you, no matter whether an avid athlete or struggle to get up the stairs. Get the benefits of exercise in just a few minutes a week.
Health experts support
Ongoing support is key to effective weight loss and lifestyle change. Our experts will be with you every step of the 12-week journey.
Health experts support
Ongoing support is key to effective weight loss and lifestyle change. Our experts will be with you every step of the 12-week journey.
Structured programme
We take the pain out of planning by providing you with a structured 12-week plan, so you can focus on the doing, not the planning.
Structured programme
We take the pain out of planning by providing you with a structured 12-week plan, so you can focus on the doing, not the planning.
How it works
Personalise the
programme to you
Take our assessment to get the right plan for you
Lose weight &
reprogramme 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
Testimonials
“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”
“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!”
“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!”
Watch Glenys’ Story
Meet our experts
Meet some of the team who will help you through The Fast 800 programme.
Got questions?
Is the programme right for me?
There is really no definitive answer to this question as everyone participating in the programme is different in so many ways (weights, sugars, exercise, medications, ages etc.). Having said that, the core objectives of this program are to:
- Lose weight
- Reduce blood sugars
The programme not only helps making food choices easier but it does provide that critical support through the forum where colleagues can support each other and members can ask questions of our health professionals which include sports scientists, nurse practitioners, doctors and health coaches.
Please note if you have certain medical conditions, are pregnant, breastfeeding or underweight, you should not do the diet. Please see ‘Is there any reason I should not do this diet’ for further information.
Who should AVOID a low calorie diet or fasting?
You SHOULD NOT do a low calorie / fasting diet if you are:
- Underweight and/or have a history of an eating disorder
- Under 18 years of age
- Pregnant or breastfeeding
- Diagnosed with a significant psychiatric disorder
- Frail or recovering from surgery
- Under active investigation or treatment or have a significant medical condition affecting ability to comply with diet and / or
- A Type 1 diabetic and those with other, rarer forms, like pancreatic or monogenic diabetes who will not respond in the same way to weight loss.
- Unwell or have a fever
You should also confirm with your doctor that you really are a type 2 diabetic as there are other rarer forms of diabetes that will not respond in the same way to weight loss.
Use CAUTION doing a low calorie / fasting diet & DISCUSS WITH DOCTOR if any of the following apply:
- On certain medications
- On insulin – detailed assessment & education by health professional to plan a suitable reduction in medication/insulin to to avoid a potentially dangerous drop in blood sugar (hypo).
- Those who have a significant underlying medical condition should speak to their doctor first, as they would before embarking on any weight-loss regime.
- If you have type 2 diabetes and are on medication, it will be necessary to adjust your medication. It may need to be reduced or stopped as blood sugars improve and to avoid hypos.
- If you are on blood pressure medication this may need to be reduced or stopped as blood pressure improves.
- If you are on diabetic medication with hypoglycaemia unawareness, so you cannot tell if you have a ‘hypo’ when your sugar level drops
- If you have moderate or severe retinopathy you will need extra screening within 6 months (as retinopathy can sometimes get worse when blood sugar improves)
- Those with a significant psychiatric history in the past
- If you are taking other medications, eg Warfarin, discuss them with your doctor first.
- People with epilepsy (though there is some evidence that diet can improve epilepsy)
- Pregnancy. Clearly avoiding fasting/low calorie diets is wise, however if there is a risk of (or previous history of) Gestational diabetes, The Blood Sugar Way of Life might be a suitable alternative.
Please read this handout (pdf) for additional information.
As the Med Style Way of Life is less challenging to do and simply involves a Med-style low carb diet, following discussion with your doctor, this may be a suitable alternative as it does not involve fasting.
For additional information to help the discussion with your doctor – please download this letter.
What results am I likely to experience on the programme?
Results will vary across individuals however, common benefits experienced by past members include:
- Improved blood sugar levels
- Reduced visceral fat
- Reduced body fat percentage
- Weight loss
- Improved blood pressure
- Improved blood lipid levels
- Reduced stress levels
- Increased energy
- Improvement in sleep
- Feeling generally happier and healthier
Most importantly, we like to think of the online programme as a plan for life. Our aim is to put you back in control so that when you finish the programme you can continue to make healthy, sustainable choices. Members often comment that the information provided in the online programme is invaluable and can easily be incorporated into everyday life.
Isn’t it better to lose weight slowly and steadily rather than fast?
As some of America’s leading obesity experts pointed out in a review article in the New England Journal of Medicine[iv] in 2013, the belief that slow and gradual weight loss is more effective than rapid weight loss is a myth, despite the fact that it has been repeated in text books for decades. They conclude that “more rapid and greater initial weight loss is associated with lower body weight at the end of long-term follow-up.” In other words if you want to diet successfully it can be better to lose weight fast than slow.
Losing weight fast motivates dieters to stick with their programme because they see rapid results. A very low-calorie diet also means less carbohydrates, which forces the body to burn fat more quickly.
Is the Fast 800 suitable for vegetarians?
Yes!
Both the online programme and the way of life are easy to do as vegetarian – as they contain lots of healthy protein and fat, for example nuts and olive oil. The 12 week online programme has an entire meal plan specifically for vegetarians as well – which will be selected for you following your assessment.
Should I discuss this with my doctor?
As with all diets, we recommend you discuss it with your doctor as they will be able to advise you on how to manage any medical conditions and you should always follow their advice. They can also help with any monitoring or tests to see how you are progressing.
For additional information to support the conversation – please share this letter with your doctor to explain the implications of the diet.
Is there any reason I should not do this programme?
You SHOULD NOT do a low calorie / fasting diet if you are:
- Underweight and/or have a history of an eating disorder
- Under 18 years of age
- Breastfeeding
- Diagnosed with a significant psychiatric disorder
- Frail or recovering from surgery
- Under active investigation or treatment or have a significant medical condition affecting ability to comply with diet and / or
- On certain medications
- A Type 1 diabetic (and those who have other, rarer forms of the disease, like pancreatic or monogenic diabetes will not respond in the same way to weight loss.)
- Unwell or have a fever
You should also confirm with your doctor that you really are a type 2 diabetic or have prediabetes as there are other rarer forms of diabetes that will not respond in the same way to weight loss.
Use CAUTION doing a low calorie / fasting diet & DISCUSS WITH DOCTOR if any of the following apply:
- On diabetic medication – detailed assessment & education by health professional to plan a suitable reduction in medication to avoid a potentially dangerous drop in blood sugar (Hypo).
- Those who are frail, under active investigation or treatment or have a significant underlying medical condition should speak to their doctor first, as they would before embarking on any weight-loss regime.
- If you have type 2 diabetes and are on medication, then we would advise you to speak to your doctor before starting as it may be necessary to adjust your medication as it may need to re reduced or stopped to avoid potentially dangerous ‘hypos’ (low blood sugar).
- If you are on diabetic medication with hypoglycaemia unawareness, so you cannot tell if you have a ‘hypo’ when your sugar level drops.
- If you are on blood pressure medication this may need to be reduced.
- People taking particular medications eg Warfarin. Discuss other medications with doctor first.
- If you have moderate or severe retinopathy you will need extra screening within 6 months (as retinopathy can sometimes get worse when blood sugar improves).
- Those with a significant psychiatric history in the past.
- People taking particular medications e.g. Warfarin.
- People with epilepsy (though there is some evidence that diet can improve epilepsy).
- Discuss other medications with doctor first.
- Pregnancy. Clearly avoiding fasting/low calorie diets is wise, however if there is a risk of (or previous history of) Gestational diabetes, The Med Style Diet might be a suitable alternative.
Please read this article for important additional information.
Are the recipes difficult?
Not at all!
We have had so many past members comment on the simplicity and deliciousness of the recipes.
The recipes are designed for your success; there are a variety of options that suit both the keen cook and the novice.
Are you ready?
Join The Fast 800 Programme and begin your journey to a happier, healthier life.