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your little box of ‘i will’ power

SlimFast Advanced Vitality 4 in 1 Action speeds up your
journey towards a slimmer, more confident you.
Available at Boots
Weight Loss Sachets 5 Day Pack

WORKS IN HARMONY WITH YOUR BODY

Our scientifically proven formula will help you lose weight. Using naturally derived vegan-friendly ingredients, our sachets are simple and easy to stick to.
How it works
Dissolve one sachet in a large glass of water 15 minutes before each meal,
stir and drink immediately, followed by another glass of water.
Breakfast 400kcal

Take 1 sachet

15 minutes before breakfast

Lunch 400kcal

Take 1 sachet

15 minutes before lunch

Dinner 700kcal (1000kcal for men)

Take 1 sachet

15 minutes before dinner

Dissolve each sachet in a large glass of water, stir and drink immediately, followed by another glass of water.

As a high fibre product, it is essential that you consume plenty of water – you should drink at least 2 litres per day.

See our products
Download our free meal planners

Fast facts

Both our sachets and capsules are enriched with two naturally derived ingredients; Glucomannan and Chitosan.

When taken with water, Glucomannan expands in the stomach, reducing your appetite and helps you feel full. Make sure to drink plenty of water - at least 2 litres every day!

KiOnutrime-CsG® (Chitosan) has a high fat binding capacity, which reduces fat absorption by up to 42%i.

Your body will absorb up to 46% less sugarii.

SlimFast Advanced Vitality 4 in 1 Action sachets are available in orange & mango flavour. Give it a go and see what you could achieve.

Weight Loss Capsules 5 Day Pack

WORKS IN HARMONY WITH YOUR BODY

Our scientifically proven formula will help you lose weight and keep your hunger in check, so you can stay away from the snack cupboard and on track to achieve your ideal weight.
How it works
Take 3 capsules 30 minutes before each meal, followed by 1 large glass of water with each capsule you take.
Breakfast 400kcal

Take 3 capsules

30 minutes before breakfast

Lunch 400kcal

Take 3 capsules

30 minutes before lunch

Dinner 700kcal (1000kcal for men)

Take 3 capsules

30 minutes before dinner

Ensure you drink 1 large glass of water with each capsule you take.

As a high fibre product, it is essential that you consume plenty of water – you should drink at least 2 litres per day.

See our products
Download our free meal planners

Fast facts

SlimFastSlimFast Advanced Vitality 4 in 1 Action capsules contain naturally derived ingredients: Glucomannan and KiOnutrime-CsG® (Chitosan).

When taken with water, Glucomannan swells and expands in the stomach, making you feel full.

KiOnutrime-CsG® (Chitosan) has a high fat binding capacity, which helps lower fat intake from your diet by up to 42%i.

SlimFast Advanced Vitality 4 in 1 Action capsules help to reduce the absorption of dietary sugars by up to 46%ii.

Drinking at least 2 litres of water a day and exercising could help you reach your goal!

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Got a question?

So, if you have any questions about the products or need advice on nutrition or the types of exercise that will work for your weight loss goals, we’re here to help.

Below are the questions that we get asked the most, but if yours isn't there, just send us an email or give us a call and we'll get onto it.

The 2 primary ingredients in this product are Glucomannan and KiOnutrime-CsG. KiOnutrime-CsG is vegan friendly Chitosan. These 2 products together give the 4 benefits of:

- Controling hunger
- Reducing sugar absorption by up to 46%
- Reducing fat absorption by up to 42%
- Helps curb cravings
Glucomannan is a water absorbing fibre which is derived from the konjac plant (a root plant grown in South East Asia). In the stomach it combines with water to form a jelly like structure. This swells in the stomach and makes you feel less hungry and fuller. It slows the passage of food through the stomach helping to curb the cravings you experience between meals. It also works with the fat binder to reduce the absorption of sugars.
The KiOnutrime-CsG is derived from fungi and produces a fat binder called Chitosan. In the stomach this product binds with dietary fats and reduces the absorption of them into the body and therefore reduces the amount of calories which the body can absorb from the dietary fats. The dietary fat+chitosan complex then passes through the body naturally.
On any diet you should aim to lose between 1lb - 2lbs a week. We completed user trials and consumers saw on average 2 times more weight loss than dieting alone.
A medical device is designed to have a physical action on the body but not be absorbed like a pharmaceutical product.  Its main aim is to prevent, diagnose, monitor or treat diseases.

It works alongside, or with the body rather than affecting the chemistry of the human cells.

All medical devices are certified  by an independent notified body which assess safety, stability and effectiveness of the product. All medical devices have a CE number to show they have been through this process. This can be found on our packs.
All these products have gone through the medical device certification process which looks at safety, efficacy and stability.

A successful clinical trial has been conducted on KiOnutrime-CsG® (Chitosan). Glucomannan is a well researched ingredient which is approved by EFSA (the European Food standard Agency) for weight management.

We have also conducted a robust independent user trial of nearly 300 consumers over 6 weeks.
An In Vitro study is what we have used to support our claims on absorption of fats and sugars. The study uses a "model" gut which allows you to see and measure how foods behave in the stomach.
A clinical trial has been conducted on the KiOnutrime-CsG® (Chitosan) fat binder which is in our products. There are also numerous clinical trials available for glucomannan showing positive weight loss. 
Our product will start acting very quickly, when the product reaches your gut and combines with the water you have consumed.  The glucomannan will start to swell making you feel less hungry.

When you eat your meal, the fats and sugars absorption will be reduced and this in turn will reduce the amount of calories available. 
From our user trial consumers started to see results in 5 days.
All clinical trials relating to the product were carried out over 12 weeks. We also completed a user trial which was nearly 300 consumers over a 6 week period. 
Intended for oral use only

- Take 3 capsules, before each meal (3 times per day).
- Take each capsule with a large glass of water 30 minutes before your meal.
- Drink at least 2 litres of water per day.
Capsules have the capacity to swell, ALWAYS swallow the capsule whole
DO NOT break, crush, bite or chew the capsules  before swallowing.
Intended for oral use only
-1 sachet to be taken before each meal (3 times per day).
- Pour sachet into a large glass of water and stir thoroughly and drink 15 minutes before your meal.
- Follow with another glass of water.
- Drink immediately do not leave the drink to stand.
- Drink at least 2 litres of water per day.
DO NOT POUR SACHET DIRECTLY INTO YOUR MOUTH - as this may cause choking.

No - Never pour directly into your mouth as this may cause a choking hazard. Always add the sachet to a glass of water, mix and drink immediately.

The glucomannan in the product works by swelling and forming a jelly like structure.  This happens almost immediately and this is why the drink has a slightly gloopy texture if left without stirring.

If the drink is left and not drunk immediately it will quickly start to form a gel. Do not drink if this happens as this could pose a choking hazard.

NO. The capsules must be swallowed whole with a large glass of water per capsule. Due to the glucomannan in the products, they have the capacity to swell and may cause a choking hazard.

No, if you have forgotten to take the product do not worry.  Do not take it after you have eaten as this will reduce the efficacy of the product and may cause an upset stomach.

Just take it as normal the next time you have a meal.

4 in 1 Action sachets and capsules are both formulated with the same level of active ingredients.  3 capsules are equivalent to 1 sachet so they are interchangeable.

However, you must remember they need to be taken at slightly different times before a meal.  Remember to take the weight loss capsules 30 minutes before food and the weight loss powder sachet 15 minutes before food.  Sachets and capsules should not be taken together at the same time.  Taking more than the recommended dose of product will not give additional benefits, but could increase your chances of potential side effects e.g. bloating, flatulence, stomach ache.

Products can be taken for up to 12 weeks or until your target weight is achieved.  This is the length of time we have data to support the products.  If you want to take for longer, have a break for a couple of weeks and then restart.

You should always only take the recommended dosage of these products.

If you do take more than the recommended dose this won't provide any additional benefits. It could lead to an increased risk of experiencing side effects.

If an excessive dose is taken please seek medical advice immediately.

These products should be treated as a medicine and should be kept out of reach of children at all times. If your child does accidentally take these products please seek medical attention immediately.

These product have been formulated to aid weight loss as part of a calorie-controlled diet, they are not designed to be used alone. We recommend women consume 1500kcal per day and men 1800kcal per day (when trying to lose weight). There are some helpful meal planners and recipes on our website.
It's best to try and avoid alcohol whilst on a diet as it adds empty calories. Decide how much you can drink without your dieting will power disappearing, and then stick to it. Remember alcohol contributes to your daily calorie allowance, so drinking too much can lead to weight gain.

Yes, of course you can still drink tea and coffee, you just need to consider the amount of calories and deduct them from your calorie allowance. When you make tea or coffee at home, there is usually very little calorie content especially if you only add skimmed milk and have a sweetener instead of sugar. As a guide, a cup of tea or instant coffee with skimmed milk and sweetener is about 25kcal. Fruit or Green teas are a delicious way to enjoy a hot drink and are only around 5kcal per cup. Beware of milky coffees from your favourite high street coffee shops. A skinny cappuccino could be around 100kcal or more, especially if it is made with semi-skimmed milk.  

Yes you can use these products in conjunction with the SlimFast 3.2.1 Plan.
Just be aware that you will be consuming a lot of fibre and in a small percentage of people this may lead to an  increased risk of some side effects associated with a high fibre diet e.g. bloating, flatulence, stomach ache.

To reduce the risk of side effects occurring, drink plenty of water.  Also, you could gradually introduce the sachets or capsules by adding 1 dose per day and gradually building this up to 3 doses a day as your body adjusts.
These products work by helping you to feel less hungry and reduce your cravings, meaning you will probably not want to snack.  However if you do feel hungry then have a snack, but just take it off your daily calorie allowance. 
All medical devices need to be certified by an independent notified body which looks at safety, efficacy and stability of the products.
The glucomannan in the product works by swelling into a jelly like structure. This happens very quickly approx. 5 minutes. If the product is not taken as per instructions and with plenty of water, there is risk of the glucomannan swelling in the throat and causing choking. It is really important that you:-
- Drink plenty of water with the product
- Dissolve the sachets into a large glass of water and drink immediately
- Swallow capsules whole and do not break or chew them
Details of those people who should avoid taking these products are listed on the pack and in the leaflet. These must be read before taking the product.  

Here is a list of who should NOT take the product:-
- Those under 18 years of age
- Those who are underweight with a BMI of less than 18.5
- Those who are pregnant or breast feeding
- Those who have difficulty swallowing or suffer from any disorder that affects your throat or gullet or if you have ever experienced any obstruction of the oesophagus or are elderly and have difficulty swallowing
- Those with a disorder of the digestive tract or have an inflammatory disease of the gastrointestinal tract such as acid reflux, gastritis, ventricular or duodenal ulcers, Chron's disease or ulcerative colitis or diverticulitis
- If you have an allergy to any of the ingredients listed
- Medical history of constipation or intestinal obstruction, megacolon, faecal impactation or intestinal polyps
- If you have a gastric bypass, gastroparesis in diabetics with neuropathy or existing  digestive disorders

You should consult a doctor before taking these products if you are:
- Diabetic
- Suffer with high cholesterol levels
- Take medication with a narrow therapeutic range (see leaflet for more details)
We do not recommend using these products when you are pregnant or breastfeeding as your body needs extra calories and nutrients to ensure you stay healthy. Once you have finished breast feeding and if you feel you need to lose weight then these products could help you on your weight loss journey.
If you suffer from IBS you may find that high fibre foods can aggravate the condition. As these products are high in fibre it is not recommended that you use these products.
Anyone over 18 can use these products.  

However the elderly who may have swallowing difficulties should not use these product as it could cause choking, please see warning on the pack/leaflet. 
These products have been specifically developed for those with a BMI over 25 and upwards. They can help slimming as part of a calorie-controlled diet and healthy lifestyle.
If you are taking any medication, particularly any prescribed, please consult your doctor before use. 

Any medication must be taken 1 hour before taking this product. If you forget then please leave 4 hours after taking this product before taking your medication. This will ensure there is no loss of efficacy of your medication.

If you are taking medication more regularly or medication that needs to be taken with food, then do not take this product at the same time.
Yes you can still use this product, just make sure you follow the advice given above.  
You should consult your doctor before taking this product.
We do not recommend that under 18's take any SlimFast products.
  
Whilst the body is still growing it requires a nutrient dense diet and a healthy, balanced lifestyle. 
Not all slimming aids are the same and the SlimFast product is a fully approved slimming aid. There have been some cases in the UK of people buying slimming aids from unapproved sources which have sadly resulted in fatalities. These unapproved products contain DNP which is a banned substance in the EU.  Our products are fully approved by the medical device authority and are safe to use. 
Do not take these products just before you go to sleep. 

The glucomannan forms a jelly like substance in the stomach and if this is taken just before sleep this can cause a risk of choking and other potential side effects.
Yes these products are suitable for those following a vegan or vegetarian diet.
If you have a known allergy to one or more ingredients listed on the packaging, including sulphites, do not use the products.
Yes these products are gluten free. However coeliacs are more prone to gastro issues. If you take these products and are a coeliac experiencing side effects, please stop taking the product.
NO - Though these products do not contain any nut ingredients, they are packed in a factory which does handle nut products.
Yes these products do not contain any dairy-based ingredients 
These products contain a high level of fibre and this can cause upset stomachs in some people. Make sure you drink plenty of water throughout the day when taking the products as this should help prevent side effects.

If symptoms persist, stop taking the product and consult your doctor.
The glucomannan in the product absorbs water in the stomach and turns to a jelly like structure, if not enough water is consumed with these products it can cause dehydration which can result in headaches.
These products are only available exclusively in Boots both in store and online (until April 2019)
No these products do not require a prescription, they can be purchased in store in the area next to other SlimFast products.
For anyone to endorse/advertise products in the UK they must have used the products and actually seen the results they talk about. All celebrities associated with SlimFast have been on our diets and successfully lost weight.
We have developed and formulated a product that works in harmony with your body to support you on your weight loss journey which helps to tackle four key areas of dieting:

- Hunger control
- Reducing sugar absorption
- Reducing fat absorption
- Helps curb cravings
These products are only available exclusively in Boots both in store and online. 
No these products do not require a prescription, they can be purchased in store in the area next to other SlimFast products.
Capsules are more expensive for us to manufacture than sachets and despite us working really hard to deliver the best prices, price matching across this range is not possible.

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