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Your programme for weight loss and long term health starts straight away.
When you click “start now”, you’ll be asked to create an account. Once your account is set successfully, please go through the checkout process, which requires you to enter credit card details, to trigger your access to the personalisation quiz and the start of your 7-day free trial.
Your credit card will only be charged if you do not cancel prior to the end of the trial period.
Please note, once you cancel the free trial, you will lose access to your account straight away.
For more information about your Start Date, see our FAQ ‘When does Week 1 Start?’ below.
This is a difficult question to answer as every individual and everyone participating in the Programme is different in so many ways (weights, sugars, exercise, medications, ages, etc).
The different approaches within The Fast 800 can help people who are:
The personalised Programme helps to make healthy lifestyle habits easier and provides:
It is important to note that if you have certain medical conditions, are pregnant, breastfeeding or underweight, you should not do the diet.
Please see ‘Who should AVOID a low calorie diet or fasting’ below for further information.
Please be aware that Week 1 starts the Monday following sign-up. The time in between sign-up and Week 1 is called the Prepare period, and is designed to give you time to have a look around the programme, start planning your shopping list and recipes, try a workout or two, and get used to how the programme runs and works.
Please ensure that you are signing up according to how much Prepare time you would like before Week 1 commences – for example, if you would like a full week of Prepare time, please sign-up on a Monday or Tuesday, and if you would like to start Week 1 right away, please sign up on a Saturday or Sunday.
If you are having difficulty signing up / registering, please get in touch regarding our contact us form.
Joining is as easy as clicking here to join via our website, OR making payment via the Google Play / App Store. (Search The Fast 800).
Joining on the website
To join our 12-week guided Programme via the website, you will pay per month for three months. This includes a 7-day FREE trial.
Once you have completed your 12-week Programme, you will receive a bonus FREE month of Graduate Support Membership to continue or maintain your results.
You will automatically transition to our monthly Graduate Support Membership for per month, unless you cancel before the end of month four.
Once you are in month five, you may cancel anytime.
Joining on Google Play or the App Store
The pricing structure and membership options are slightly different on the app stores, simply proceed through the signup and checkout process to see available pricing and membership options. You can also take advantage of paying in your region’s currency on Google Play and the App Store.
Please note:
No, you don’t have to give up any of these whilst following the Programme although, obviously, we would certainly advise everyone to stop smoking as soon as possible, irrespective of their blood sugars.
Coffee and alcohol are still allowed on the programme although the calories in both of these drinks need to be included in the daily calorie limit (noting that alcohol is highly calorific).
A pint of beer or a large glass of wine contains 180 calories, so really best avoided or kept to a minimum.
The good news is that red wine is included in the Mediterranean-Style diet, so once you finish The Very Fast 800 and The New 5:2, and move onto ‘The Way of Life’ approach you will be able to introduce alcoholic drinks back into your lifestyle (we go over this in more detail on the Programme).
Black coffee and tea are fine although you will need to include any milks in your daily calorie count.
Our Programme teaches you the health benefits of a moderately low-carb Mediterranean-style diet, so it becomes a way of eating for life. It is based on the latest science and takes an evidence-based approach to healthy living focusing on nutrition, movement, behavioural change and sustainable lifestyle.
It includes:
Please head to your Programme Dashboard, click on Settings on the left-hand menu, and scroll down to Account Status at the very bottom of the page.
Once here, simply click Cancel Membership.
Please note, you are not able to cancel your account via the Community.
The Fast 800 programme is not recommended for the following:
Please read our medical disclaimer for additional information.
To help the discussion with your doctor, download this letter.
The Fast 800 Keto may be the right approach for you if you:
Have tried The Fast 800 previously and want to get back on track
Have already started your journey with the programme and want to try something new
Are experiencing a weight loss plateau, or
Are simply starting with The Fast 800 for the first time, and ready to make a big change.
Our goal of The Fast 800 is to teach everyone that, regardless of your preferences, you can utilise the most up to date science and research to incorporate the principles and benefits of the Mediterranean way of eating and intermittent fasting into your lifestyle. Regardless of where you are in your journey to better health and well-being, The Fast 800 has options available to help you achieve your goals and improve your overall health.
Should you be looking for more support, sign up to our personalised Programme, which will help you to work out which approach is right for you.
The Fast 800 Keto is the most recent addition to our available meal plans, and is designed to offer people an even lower carbohydrate option, that provides a great kick start to their metabolism – perhaps after a festive splurge or time away from fasting.
The Fast 800 Keto book by Dr Michael Mosley states keeping the carbs under 50g per day. On the online programme, our meal plans still align with this, but keeping our average a little lower as mentioned (20g) to allow for people making recipe swaps and so you can still add extra low-calorie non-starchy veg without having to worry about counting extra carbs or calories.
The Very Fast 800 and plans including fasting days are similar to this, however, you have slightly more carbohydrates at around 50g or less per day (still considered low-carb) and the rest is healthy fats.
Our Nutritionist has worked hard to produce a variety of meal plans:
The Very Fast 800
The Fast 800 Keto
Transitional 3:4
The New 5:2
The Way of Life
With two-meal-a-day and vegetarian plans available for most meal plans.
We don’t recommend consuming drinks or foods containing artificial sweeteners. Read more about sweeteners here.
The low-carbohydrate, Mediterranean-style meal plans in our Programme are balanced for variety, nutrition, calories, protein and taste – designed to keep you fuller for longer to make each phase easily achievable.
With our meal plans on the Fast 800 Programme, you can plan for, shop and prepare the week’s food with minimal fuss. Our recipes are designed to be low in effort and high in flavour, and can often be prepared in double quantities to be packed up for dinner or lunch on the go the next day.
Many past members comment on the simplicity and deliciousness of our recipes, which are rich in vegetables, protein, fibre and healthy fats. They are designed with your success in mind and have a variety of options that suit both the keen cook and the novice.
Results will vary across individuals however, common benefits experienced by past members include:
Most importantly, we like to think of the 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.
Our members often comment that the information provided in the Programme can easily be incorporated into everyday life.
800 is the generally accepted number of calories used to achieve weight loss in scientific studies. Professor Roy Taylor, leading researcher into the reversal of type 2 diabetes, used 800 calories in his test group in the DiRECT Trial.
We have found that 800 calories is high enough to be manageable for most members, but low enough to trigger a range of desirable metabolic changes.
Yes, absolutely! We have recently developed two meal a day plans, alongside our three meal a day plans, for those looking to extend their fasting window. Our meal plans have been carefully developed to ensure you’re reaching the desired macronutrients, taking any time consuming calculations away from you!
The DIAMOND Study performed by Oxford University and Dr Clare Bailey looked at the feasibility of using an 800 calorie, low-carb, med-style diet as a treatment for people with type 2 diabetes.
After 8 weeks the average weight loss was 9.5kg, sustained over the course of the trial.
Results also included a significant drop in blood sugars, blood pressure and the use of medication.
As the Programme is guided, you are unable to pause or restart the course.
You can switch back to previous weeks and you also receive a free four week trial of the monthly subscription service at the end of the Programme to allow you to catch up on any missed content.
Research shows that a moderately low-carbohydrate Mediterranean-Style diet has unique power not just to restore your body’s ability to reach its ideal weight and stay there, but also to cut your risk of serious disease.
As one of the most studied and healthiest diets in the world – it is at the heart of all we do.
All of the recipes included in the Programme are based around the Mediterranean-Style diet.
Please note, 800 calories a day (The Very Fast 800) is too low for those who are doing intense or endurance exercise.
If you are doing intense/endurance exercise, you will require more energy than most. You may still be able to follow The Way of Life approach however, you may require extra nutrition to support your training plan.
We would advise seeing your usual health professional before making any lifestyle changes or starting a heavy exercise regime as they will be in the best position to provide personal advice.
The Very Fast 800 approach is intended to be used for no longer than 12 weeks or until a healthy BMI is achieved, whichever comes first.
After a period of 12 weeks (or the achievement of a BMI within the healthy range) you should transition to The New 5:2 or The Way of Life, by way of gradually increasing your non-fasting days by introducing intermittent fasting and non-fasting days each week.
We also recommend drinking plenty of water and taking a high-quality multivitamin.
The easiest measurements are things like:
Some weighing machines will also give you an estimate of your body fat.
You could also take a measure of your resting pulse, as this is a good predictor of future health.
Also, ask your doctor to measure HbA1C (average glucose), cholesterol and your blood pressure.
There are no dedicated vegan fasting meal plans available on The Fast 800 Programme.
If you are not fasting, it is possible to adapt The Way of Life approach to create a vegan plan however, it will require your effort to ensure your daily protein requirements are achieved.
There have been many people with certain allergies successfully complete the Programme.
The meal plans are not able to exclude certain ingredients. Thus we cannot offer a menu tailored specifically for food aversions, intolerances or allergies, e.g. FODMAP, egg-free, nut-free, dairy-free.
However, you are able to switch out recipes containing offending foods for a more suitable option.
There are three main approaches:
The Very Fast 800, which is 800 calories per day for up to 12 weeks – this approach is for those that are motivated and want to lose a lot of weight rapidly.
The New 5:2, which is based on five days of healthy eating and two fasting days, created for those who have less weight to lose but would like to experience the other health benefits of fasting and healthy eating.
The Way of Life, which is for those that are already at a healthy weight but would like to improve their overall health.
We also have some other approaches available:
The 3:4 Transition Plan
The Fast 800 Keto
If you’d like to learn more about any of our meal plans, email us at info@thefast800.com!
Many people who have coeliacs disease or a gluten intolerance have successfully completed the Programme.
The great majority of the recipes are gluten free and any recipes that do contain gluten can be easily modified to become gluten free.
Our Health Coach team will be able to help with any questions in relation to substitutions.
You do not need access to Facebook to get the full benefit of the Programme. Our Community is private, and hosted by The Fast 800.
All paid member interaction occurs on the website or via email; there is no programme content on Facebook or any other platform.
As noted in our Programme Terms & Conditions, when you join via the Website, The Fast 800 Programme offers course content and Community support for a fixed period of time.
Upon joining the Programme you will immediately access orientation content. Your course is then 12 weeks long and once finished you will move across to our monthly subscription service (with the first month free). Thereafter you can continue accessing course content and Community support for a reduced monthly fee.
If you join via the App, your contract will be with the App Provider, and details of your membership will be confirmed after you have joined. Access will continue and payment will be taken until you choose to cancel your membership through the App Provider (Google or Apple).
We have two ways to pay for the programme; via our website or via the App / through your App provider.
Joining on the website
On the website, we have now split the cost of our 12 week programme over three monthly payments of per month for three months.
After the first three months, you then get a break in your payments for a month to trial the Graduate Support Membership for free and then your payments are reduced to per month until you choose to cancel.
Joining on Google Play or the App Store
If you would prefer to pay on a month by month basis or even commit for the whole year, then our App provides you with the flexibility to do this.
The pricing structure and membership options are slightly different on the app stores, simply proceed through the signup and checkout process to see available pricing and membership options. You can also take advantage of paying in your region’s currency on Google Play and the App Store.
Please note:
We encourage the integration of exercise and activity alongside your lifestyle changes for rapid weight loss and healthy ageing.
If you are injured or have limited mobility it is possible to follow the Programme without completing the exercise component. We offer variations to certain exercises to ensure the plan is accessible for most people.
If you are unable to do the exercises the main focus would then be your dietary and mindfulness changes.
We recommend consulting with your usual healthcare professional before completing the exercises to reduce risk. We also recommend reading our medical disclaimer.
We offer three sessions of resistance (20-30 minutes) and two sessions of HIIT (10-15 minutes) workouts per week.
Based on the personalisation quiz you complete at the beginning of the programme, you are either placed on a beginner, intermediate or advanced level.
There is also a library of additional exercises – such as stretching and pilates – if you are looking for more!
We always recommend real food first.
The Fast 800 shakes contain 22 of the key vitamins and minerals plus fibre and protein so are great for busy/stressful days when the convenience of a snack on the go is important.
We suggest no more than 7-10 shakes a week alongside a healthy moderately low-carb Med-style diet.
As a part of your orientation for The Fast 800 Programme, you complete our Personalisation Quiz to tailor the level of exercise, determine the right level of fasting and align the individual goals of each and every member to their plan.
If you do not have a lot of weight to lose you may be placed on The New 5:2 or The Way of Life.
As your goals and circumstances change, there is likely to be an approach suitable for you, whether you’re looking to lose a lot of weight for better health, or want to eat in a way that will support healthy aging and promote longevity.
Yes! Our interactive and Programme to lose weight for better health is now just a tap away. It is accessible on your desktop, mobile, tablet and laptop. It is now more mobile-friendly than ever before with The Fast 800 App.
We encourage everyone following the Programme, particularly those with diabetes or other medical conditions, to share information about The Fast 800 diet and lifestyle with their health professionals.
To make this easier to do, you can use the healthcare professional handout as a useful tool to help you discuss whether The Fast 800 is right for you.
Professor Valter Longo, director of the University of Southern California’s Longevity Institute, is one of the world’s leading experts on the science of human ageing. Valter believes very strongly in using the power of fasting to delay ageing and prevent the onset of chronic diseases like cancer, heart disease and diabetes.
Fasting is utilised in the programme in a range of ways.
We encourage full fat dairy and use it in some of our recipes.
To make the plans dairy/lactose-free you will need to substitute the dairy component with your preferred plant based alternatives.
Should you decide to cancel your programme account, and wish to delete your account and associated data, there are two ways you can do this:
If you have any queries about our shakes, please click the link below for your location:
There are several ways we are different from other shakes.
There are 10 servings per 500g pouch, based on the recommended of 50g per serving.
For a small meal (200kcal) take 5 level scoops (50g) of our formulation and add it to 200-300ml of water (add more or less water depending on taste). Shake well and enjoy!
For a creamier texture, try adding unsweetened almond milk or your favourite milk.
We also have some other tips to help you reach your goals and get the best out of the shakes.
We encourage real food first. We are aware that this is not always possible so we recommend 7-10 shakes a week alongside healthy Med-style meals. They are great for a quick and easy breakfast – better and more filling than sugary cereals or other snacks.
Our original shakes contain milk whey and our vegan shakes contain no animal products at all.
There is no added sugar in any of our shakes. Our shakes do contain natural stevia as we want them to taste good, however the amount we use is low. Instead our shakes are made up primarily of healthy fats and proteins with a focus on ground nuts and seeds. Our new Mushroom Soup does have a very tiny amount in the flavouring, but this does not affect the sugar levels, in fact our soup has even lower sugar than our shakes!
Our vegan shakes are! However our original shakes contains milk whey.
We recommend that you keep the pouch stored in a cool, dark cupboard. You do not need to keep it
in the fridge.
Sometimes the powder gets caught in the seal. Give the seal a bit of a flick to remove the powder.
Our shakes and multivitamins have been designed with different purposes in mind. Both support your nutritional needs whilst following The Very Fast 800 or on a fasting day, however, we have designed them to suit different purposes (i.e. we haven’t designed them to be taken together).
Whilst we always recommend real food first, the Fast 800 shakes contain key vitamins and minerals plus fibre and protein so are great for busy, stressful days when you don’t have time to cook. We suggest no more than 7-10 shakes a week alongside a healthy low carb Med-style diet, which includes a wide variety of low calorie, non-starchy vegetables (such as leafy greens) which we encourage you to eat liberally.
The Fast 800 multivitamin has been designed to safeguard your nutritional requirements whilst following the Very Fast 800 with real food.
As with any vitamin or mineral supplement, we would recommend that you read the label, as if taken in conjunction with other products, they may contain the same ingredients. We advise that you discuss with your Pharmacist which supplements are right for your personal needs, and to ensure the vitamins/shakes don’t interact with any other vitamins or medication that you may already be taking.
Click on the link in your order confirmation email to see the status of your order.
We send you an email with a tracking link as soon as your order is on the way. For tracked orders,
use the tracking link provided to check where your order is.
Have you checked for a delivery card? Your parcel may have been left somewhere safe or been
taken to a local depot.
If you have any queries about our shakes, please click the link below for your location:
No, the protein powder is different to our shakes and cannot be used to replace meals. It’s been specifically designed to boost daily protein intake and is made with minimal ingredients and calories (each serving is only 120 calories and packs an enormous 22g of protein). If you would prefer a more filling option, with an added vitamin and mineral mix, we recommend trying our Original Shakes and Vegan Shakes.
Yes, our protein powder is made from natural, vegan ingredients and free from nuts, gluten, dairy, soy and egg.
No, the Protein Powder alone does not induce ketosis but it can be used alongside a keto diet to add extra protein to meet your requirements. Our protein powder is classed as keto-friendly as less than 10% of the total energy content comes from carbohydrates.
Exactly like our Original and Vegan Shakes, pop the powder into your shaker with 250-300ml of water, dairy and non-dairy milk. Shake well and enjoy alongside a healthy meal, or use them in smoothies, mix into Greek yogurt or try one of our recipes.
Please email our team at vitamins@thefast800.com for assistance with any questions related to our vitamins
UK Multivitamin: 90 tablets Aus Multivitamin: 30 tablets
Energy Supplement: 30 Capsules
Immunity + Bio-Cultures Supplement: 60 Capsules
Vegan Omega 3 Supplement: 60 Capsules
Multivitamin:
The Fast 800 multivitamin has been designed to safeguard your nutritional requirements whilst following the Very Fast 800 with real food.
The vitamins included in the Multi-vitamin are based on a recent study conducted in Perth, WA, which found all participants were deficient in vitamin A, vitamin D, vitamin E, folic acid, potassium, zinc, calcium and magnesium.
The Fast 800 Multivitamin contains all of these essential nutrients, along with others that the Perth scientists didn’t test for, including selenium and iodine. People living in the UK have some of the highest rates of iodine deficiency in the world; iodine is vital for a healthy thyroid gland, which in turn helps control your metabolism. Iodine deficiency can lead to hypothyroidism (an underactive thyroid gland) which often leads to weight gain.
Please note, while we do recommend taking a high quality multivitamin when doing the programme, particularly on the 800 calorie plan, in order for extra nutritional support, particularly on fasting days, there is no necessity for this to be ours specifically – we wanted to simply provide this as an option.
Energy Supplement:
The Fast 800 Energy supplements are designed to support those following The Fast 800 way of eating, especially those following the Very Fast 800 approach. During fasting or times of stress, energy cycles can ebb and flow, which is why ensuring you have an adequate intake of B vitamins and iron is essential for reducing tiredness and fatigue.
Immunity + Bio-Cultures Supplement:
Good health and an improved mood are the foundation for progressing well on The Fast 800, and gut health is an essential component of both these factors. The Fast 800 Immunity + Bio-Cultures supplement is designed to bolster your immune system, as well as supporting serotonin production to support an improved mood.
Vegan Omega-3 Supplement:
Designed specifically for vegans and vegetarians, who are often deficient in omega-3, The Fast 800 omega-3 supplement is sourced from flax and algae: free from animal products. Omega -3 and its components assist with cell function, heart and brain health, as well as reducing the risk of developing insulin resistance, inflammation, and high blood pressure.
UK/Aus Multivitamin: Take 1 tablet daily, with food.
Energy Supplement: Take one tablet daily, with food, in the morning. Avoid taking before bed as the energy supplement is designed to reduce tiredness and fatigue.
Immunity + Bio-Cultures Supplement: Take two capsules daily in the morning, with food.
Vegan Omega 3 Supplement: Take two capsules daily, with food.
None of our vitamins or supplements contain animal products, so are all suitable for vegetarians and vegans.
All our vitamins and supplements are gluten free by ingredient, however, they are manufactured in a facility that also produces gluten-containing products, so may be unsuitable for coeliacs. If unsure, please check with your doctor before using.
For ALL our vitamins and supplements: Please consult your medical professional if you are pregnant or breastfeeding, taking medication, taking other supplements, or have an existing medical condition, before using The Fast 800 products.
Our meal replacement and supplement products may contain the same ingredients. Always read the label and discuss with your general practitioner or pharmacist to determine which products may be right for you and to ensure you’re not exceeding recommended daily intakes of nutrients. Use only as directed.
All Vitamins and Supplements:
If you have a medical condition and/or are taking medication, please consult with your doctor before using our products.
All Vitamins and Supplements:
We recommend that you consult with your usual doctor before using our products if you are pregnant and/or breastfeeding.
All Vitamins and Supplements:
Our products are not recommended for those under 18 years of age, as the reference intake for the ingredients is based on adult amounts. Please keep out of reach of children.
Multivitamin:
The Multivitamin is designed to safeguard your nutrition and to help support against common vitamin deficiencies. We have always recommended our members take a good-quality multivitamin for additional support during The Very Fast 800, however it is also safe to take year-round. We would recommend speaking with your doctor if you have any concerns, and keep in mind that the multivitamin is not designed to take the place of a healthy diet.
Energy Supplement:
This supplement is not intended for long term use, rather to supplement your energy levels when required, especially whilst fasting / during times of increased stress.
Immunity + Bio-Cultures Supplement:
The Immunity + Bio-cultures supplement can be taken year-round, as supporting gut health is vital no matter the season. However, it is especially useful during times when immunity is naturally lower, for example cold and flu season (when there is also less sun around!) so can also be taken seasonally if preferred.
Vegan Omega 3 Supplement:
The Omega 3 supplement is safe for long-term use, however we do recommend discussing any plans for long-term use with a doctor, pharmacist or nutritionist before using the product.
