Monday - Friday | 8am - 6pm

0203 322 7970 Live Chat
  • Our price match promise

    We will beat or match other retailers

  • Free UK delivery on orders over £50

    Choose a day that suits you

  • Our customers love us!

    Independent reviews from Feefo

Slim-Fizz Glucomannan Appetite Suppressant

By proto-col

You Save:  $11.25


In stock
Order before 4pm for same day dispatch.

Free Delivery
Available on all UK orders over £50.

Finest Quality
Premium brand using the finest quality ingredients.

Discreet Service
Plain packaging and discreet billing.

Free Infuser Bottle
With all orders over £100.

Proto-col Slim-Fizz is a unique appetite suppressant containing Glucomannan, which helps to control and eliminate unwanted food cravings. This unique combination of natural ingredients can help give your weight loss efforts a boost. Glucomannan is a natural soluble fibre derived from the Konjac plant designed to expand in the stomach keeping you fuller for longer.

  • Glucomannan appetite suppressant
  • 10 day programme
  • Each serving contains only 6 calories per glass
  • Orange flavour
  • Suitable for vegans and vegetarians
  • Soluble effervescent tablets

Proto-col Slim-Fizz is easy to take and perfect for those that are looking to curb their appetite but dislike taking capsules and supplements. Slim Fizz is a soluble effervescent tablet that dissolves in water making it super easy to add to your every day routine and also contributes to you getting your daily recommended amount of water.

Read More
Type: Tablets
Quantity: 30 (2 tubes of 15)
Recommended Dosage: 3 tablets a day
Duration: 10 days
If you are actively trying to lose weight and are struggling with unwanted hunger cravings, there is a good chance Slim Fizz can help you. Dawn Harper - Dietician

What is Proto-col Slim Fizz?

Proto-col Slim Fizz is a unique appetite suppressant containing the ground breaking fibre Glucomannan, which is a natural soluble fibre derived from a high quality of pure Konjac. With only 6 calories per drink Slim-Fizz is specifically designed to help control unnecessary hunger to help reduce cholesterol and help with weight loss when taken as part of a calorie controlled diet. It has become the most popular slimming aid not only in UK but worldwide for those who genuinely wish to lose weight. As well as being one of the strongest formulations in the market, it's unique ingredients work together to suppress hunger and aid healthy weight loss.

Slim-Fizz effervescent tablets are super light and effective and are great for those who do not like taking pills. These tablets are readily soluble in water and can be taken easily. This super-light appetite suppressant works by making you feel less hungry and more full which then helps to reduce your daily calorie intake, helping to shred those extra pounds. All this sounds great but what makes proto-col Slim-Fizz so special?

  • Each serving contains only 6 calories per glass
  • Designed to help control hunger cravings
  • Helps curb your usual appetite - less snacking
  • Derived from Glucomannan fibre
  • Orange flavoured

What is Konjac/Glucomannan?

Used for over 2000 years by the Chinese to treat various medical conditions Glucomannan is made from the root of the Konjac plant (Amorphophallus Konjac). Most commonly used as a thickener or gelling agent – Glucomannan is a natural soluble fibre derived from the high quality refined Konjac plant, which helps to aid digestion and helps trap fats and oils from entering your blood stream. Slim-Fizz Glucomannan is also high in natural viscosity and free from sulphates and heavy metals.

Upon being consumed, Glucomannan expands in your stomach and down to intestinal tracts, leaving you with the feeling of fullness reducing your daily calorie intake.

How do I take Slim-Fizz?

The delicious orange flavour tablet simply dissolves in water and should be drunk immediately. Drink a glass of water with Slim-Fizz 3 times a day for the best effect. We recommend taking your slim fizz about 30 minutes before your meal for best effect as an appetite suppressant.

The tablet forms a gel in the water and once taken will gently expands in the stomach to promote a feeling of fullness. This occurs by forming what could be described as a temporary gastric band in the stomach and the intestinal tract.

Make sure you also keep hydrated whilst taking Slim Fizz. Drinking a lot of water will ensure you are properly hydrated and your digestive system is clean, which can also further help you with your weight loss as an extra added benefit.

Is it safe to use?

The main active ingredient in Slim-Fizz is Konjac or Glucomannan. Because Glucomannan is 100% natural there are no known side effects. We do always recommed checking the ingredients with any product to make sure you do not have any personal alllergies. Proto-col Slim Fizz is suitable for vegetarians and diabetics.

How to order?

Just select ‘Add to Basket’ option and proceed to our quick and easy checkout. Remember that when you order before 4pm on any working day you can receive your product as early as tomorrow. You can now also benefits from a range of delivery and payment options and feel safe that your order is secure. To make it even better we are now offering FREE delivery to all UK orders over £50 as well as a FREE WeightWorld Fruit Infuser Bottle to all order over £100! If you would like to ask our customer service a question they are avaliable from 8am to 6pm from Monday to Friday.

Directions for Use:

Dissolve 1 tablet in a large glass of water and drink straightaway.

Take 3 times a day, 30 minutes before meals.


Acidity Regulator: Citric Acid, Foaming Agent: Sodium Bicarbonate, Sweetener: Lactitol, Maltodextrin, Colour: Sodium Chloride, Emulsifier: Magnesium Stearate.

Suitable for vegetarians and vegans.

An effervescent maltodextrin food supplement with sweetener
Nutrition Information
Servings per package:
30 Servings (10 day supply)
Serving Size:
4.20g (1 Tablet)
Average Quantity per Serving
Glucomannan 1.58g
Energy 24kj (6 kcal)
Fat 0.0g
- of which saturates 0.0g
Carbohydrate 0.5g
- of which sugars 0.4g
Protein 0.0g
Salt 233g

Customer Reviews

At WeightWorld we strive to offer the best possible customer service and we take great pride in the feedback we have received from our customers.
Product Rating (85.8% based on 69 Reviews)
Service Rating (92.16% based on 51 )

Want to write a review? Click here

  • * Good
  • * this has worked great for me, I stopped wanting my afternoon snack all together and have found I've been eating less at dinner too
  • * Very effective although not keen on the taste
  • * Like a lot, thanks
  • * works great for me, very happy
  • * just received my pack, looking forward to giving it a go
  • * with this i dont feel like I need to eat as big a portion at meals so have lost a few lbs now! great! :)
  • * Used this all though christmas as I wanted to enjoy myself and still eat yummy christmas food but didn't want to end up eating loads and putting weight back on after losing it. This helped me know when I was full so although I had the big roast I just didn't eat as much so although I didn't lose any weight over christmas, I didn't gain any like expected!
  • * Going to use this over christmas - i'm determined not to put on any weight!
  • * I really hate pills so this is great me for. I also like the orange taste so overall very happy and have bought again
  • * Wish it had more in a pack, have to keep buying lots at once to keep my stock up
  • * Works well so far, will keep using
  • * 5 stars from me!
  • * I like using this, I don't mind the taste and it actually helps!
  • * Good product. value for money
  • * The ordering & website is very easy to use, the product was delivered within a couple of days. I can't comment on the product as have only been taking it for a couple of days..
  • * Lives up to advert and description
  • * Really working on my husband!
  • * My partner has been using this product for some time now. This appetite suppressant definitely works for him, he has now lost a total of 21lbs!
  • * I enjoy the taste and feel better.
  • * Seems to be working but its early days.
  • * Extremely happy with it
  • * need to leave 1/2 hour before meals not quite what i was expecting i thought you took it when hungry not before a meal
  • * Easy to drink once it's dissolved must drink before it gels tastes pleasant
  • * They do take the edge of hunger pangs but not for long... at least not for me.. don't be fooled and think its an easy fix... you will have to carry on with a sensible diet... but worth a try as some people find them helpful..
  • * I feel the product does work and I will order more.
  • * I think that the delay in delivery was a shame as someone should have been aware that exposure in the Daily Mail would result in a dramatic rise in orders.
  • * As I got only 2 weeks supply to start with, it is taking me time to adjust to a new eating regime & change old eating habits.
  • * I ordered Proto-col Slim-Fizz Glucomannan Appetite Suppressant for my partner. He has lost 7lbs in 2 weeks & is getting on really well with using the product.
  • * .
  • * Unable to properly try this product yet
  • * Is not working for me. Not to say the product is no good but no result whatsoever in my case
  • * So far working well. Definitely not snacking and feel much more energetic.
  • * It does what it says on the promotion.
  • * .
  • * Will try it soon.
  • * Pleasant tasting seems to be working time will tell
  • * .
  • * .
  • * Very good. Tastes nice and easy to use.
  • * Does what it says �� Only need to take 2 times a day not three .
  • * okay product
  • * I bought this for my daughter
  • * Again some delay in using the product because of holidays. But now I have tried
  • * Haven't really noticed any difference
  • * good
  • * Seems to be working but early days yet.
  • * Works fine
  • * It does what it says, I am loosing wait, steadily.
  • * .
  • * Does help to suppress appetite with no side effects at all.
  • * very helpful in losing weight.
  • * Used for one week, no weight loss ! will keep trying as I always give at least a month to try any products. Problem being a diabetic, I have been told its extremely difficult to lose weight especially on insulin.
  • * Seems to be really working
  • * Good
  • * .
  • * Just started using this but it seems tom be doing what it says
  • * Possibly as advertised.
  • * iam happy with the product
  • * definitely does what it more snacking for me :)
  • * Seemed to work
  • * Works well
  • * Excellent customer service specialists that I spoke to, they were very informative.
  • * saw this advertised in the daily mail and although stock is low and hard to get hold of, weight world sorted me out. great customer service.
  • * I've been trying to lose weight for about 6 months now and although I go to the gym, my calorie intake was the issue. From what I've read this will help me to reduce that intake. Hopefully it works.
  • * saw this on daily mail and this site handled all my queries perfectly. great delivery and item was as described.
  • * you really do have to drink it immediately otherwise it forms into a gel but i've been taking it for a few days and it has stopped me from snacking.
  • * So hard to get hold of but the customer service person i spoke to explained the situation and they were very informative.
  • * i love this! its so easy to take and tastes great
* Results may vary from one person to another.