While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Review summary

Created with AI, based on recent reviews

Evaluating 26 reviews, most reviewers were unhappy with their experience overall. Many customers expressed significant dissatisfaction with the quality of the products, particularly the new meal replacement bars and shakes, describing them as having a strange texture, unpleasant taste, or being barely edible. Reviewers frequently reported a chemical, synthetic, or disinfectant-like taste in various products, especially the Cafe Latte shakes, leading many to find them undrinkable and to discard them. There was also widespread frustration regarding discontinued products that customers loved, and a general sentiment that the company has gone downhill since changing recipes. Conversely, a small portion of people felt satisfied with some products, particularly the shakes, finding them lovely and helpful for nutrition, and some enjoyed specific snack bars. However, some customers also noted issues with packaging, specifically the use of more plastic and the lack of portability for some items.

What people talk about most

Product

Clients share ambiguous opinions on product, with many expressing significant disappointment with recent... See more

Quality

Customers had negative experiences with product quality, with many reporting that items tasted disgusting,... See more

Reviews shaping this summary

Rated 2 out of 5 stars

What has happened to the new meal replacement bars...the texture feels strange and the taste is really unpleasant (more synthetic). Not sure why they changed them but I won't be buying them again. I l... See more

Rated 2 out of 5 stars

They use to have berry vegan slimfast, they stopped selling it. I could had that with water and gave me all nutrients without eating , stop selling it. I don’t understand why when I like something and... See more

Rated 1 out of 5 stars

Can see why the new meal replacement bars are currently on offer - they are barely edible . Synthetic / oversweet/ ultra processed . Will be trusting the recommendation of reviewer who recommends Cam... See more

Rated 1 out of 5 stars

I was a regular buyer of cafe latte ready made shakes and spent a fortune on them as loved them. However have cancelled my subscribe and save with Amazon as the last three packs have smelt and tasted... See more


Company details

  1. Fitness and nutrition
  2. Vitamin & Supplements Shop
  3. Weight-Loss Service

Information provided by various external sources

Easy, Doable Weight Loss using Meal Replacement Shakes, Snacks + a 600 Calorie Balanced Meal. Weight loss – we’re on it. With our Slimfast 3.2.1. Plan


Contact info

1.9

Poor

TrustScore 2 out of 5

110 reviews

5-star
4-star
3-star
2-star
1-star

Hasn’t replied to negative reviews

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 2 out of 5 stars

Recently started the slim fast shakes

Recently started the slim fast shakes. I've had the banana one and the raspberry and white choc. The sugar content of 21g has put me off buying anymore when these are finished. There doesn't need to be that much sugar in a product that is supposed to be a weight loss product. Why can't the sugar be reduced. How can it be 1g in slim fast when it says 21g per serving. They do taste extremely sweet which is too much and probably won't help with actually losing weight.

26 June 2023
Unprompted review
Rated 1 out of 5 stars

From May 2023 Slimfast have watered…

From May 2023 Slimfast have watered down their chocolate ready made shakes! They taste the same but they have definitely been watered down! I only drink these because I can’t eat solid foods and these chocolate shakes have been my meal three times a day for the last 8 years! Dread to think how much money I’ve spent, they have changed their recipe three times but this is NOT a recipe change it’s conning people! I used to love opening my drink and it filled me up but now it’s just like chocolate flavoured water! I’m going to have to find an alternative and I never thought I’d say that! Really really bad move from slimfast!

22 June 2023
Unprompted review
Rated 1 out of 5 stars

Awful stuff

Awful stuff. Do the manufactures actually taste this or do their tasters have colds! Awful smell awful taste and awful waste of money

19 June 2023
Unprompted review
Rated 1 out of 5 stars

Taste AND smell has changed

I use slimfast powder in a smoothie with psyllium husk for my Ibs. Have done for 20years as it really helps HOWEVER the taste AND smell of the powders has changed, the vanilla smells of paint and the chocolate tastes awful.. I thought they were off so threw away and bought more.. same problems.
Now I buy Asda replacement shake powders.. OMG..so delicious, much more than Slimfast EVER was and definitely recently..

1 May 2023
Unprompted review
Rated 5 out of 5 stars

Love the vitality vegan shakes

Love the vitality vegan shakes and the ready made bottled strawberry and the cookies and cream. Original powdered shakes the best one is the white chocolate and raspberry. Doing the 123 diet the moment and the rocky road meal replacement bar tastes fantastic. I don't understand the bad reviews I've been drinking slimfast for 3 years now.

6 May 2023
Unprompted review
Rated 3 out of 5 stars

the old school chocolate powders were good not now

the old school chocolate powders were lovely,think it used to be called chocolate royale not sure, but recently trying hte updated version its nasty,smell and flavour isnt on point,and they do end up lumpy even in a shaker. i used it mainly for extra protein mainly to cut calories agaisnt other gym shakes,dont like it now.

2 February 2023
Unprompted review
Rated 1 out of 5 stars

Worst customer service

Worst customer service, telephone put down and not answering calls after that. Sold us a damaged product, zero thought for customers. I bought your product because l want to loose weight not money, return my £18 and will buy elsewhere. Sold damaged product through amazon UK and you're making it impossible to refund me.

7 February 2023
Unprompted review
Rated 1 out of 5 stars

dreadful stuff

Slimfast need an urgent review of the chocolate tubs of powder ,the original and the rich were truly lovely and my go to .. not anymore ,, the taste and smell is awful and it doesn't mix well very lumpy , i used to spend a lot on slimfast but sadly they need a new taste tester ,

30 January 2023
Unprompted review
Rated 1 out of 5 stars

No no no!

I decided to give Slimfast ago as I've hit a plateau in my weight loss. Bad bad move! Who on earth is their taste tester? Surely it has to be someone that enjoys their kale and wheatgrass smoothie. Don't be fooled by the different flavours as they all taste the same its like a weird chemical baby rice come multivitamin tablet vibe.

1 January 2023
Unprompted review
Rated 1 out of 5 stars

The taste that the vanilla slimfast…

The taste that the vanilla slimfast shake had 10 years ago was great. The new ice cream like vanilla taste is horrible. Maybe a lot of people like it, but for sure l don't know either one person that does.
We were so used to drinking protein shakes with that kind of like medicinal hint in the taste. I could say that me personally and the people l know that are in to protein shakes are addicted literally to the old taste. The people that like that new soupy sweet version of protein shakes are the ones that go back to the cake and drop the shakes anyway. I used to buy it a lot before. Since the change in taste l can't even take it seriously. I probably got it once or twice in the past 7 years. Difficult to say is more than once. I hope you give the option of normal vanilla for people that actually are active and like the original taste of vanilla protein shakes and would buy it regularly.

12 January 2023
Unprompted review
Rated 2 out of 5 stars

Smells of paint

I ordered a tin of chocolate slimfast powder best before Jan 23. I have just had one and it tastes chemically and has a bad odour that smells of paint. I now feel sick and keep burping up air that smells of paint. Surely this is not normal!!! I'm now worried it has been contaminated with something!!

8 January 2023
Unprompted review
Rated 1 out of 5 stars

Slimfast 321 Chocolate powder 300g

I purchased a tub of Slimfast 321 Chocolate in a 300g powdered form from Savers in Market Harborough. I've bought it before (only a month ago). This time - omg it tastes utterly vile! It doesn't taste like chocolate, not even remotely close. The powdered contents smell like oil of some kind and tastes bitter when mixed. When mixed, its not in the slightest bit sweet and still retains the oil aroma, like an ingredient or two is missing. In addition, I just couldnt get it to thicken. This flavour has never been great at thickening, but this is like water. I have contacted Slimfast UK to complain (12th Nov 2022). If they reply I will update this post.

Batch 1069959 Expiry Feb 2023
23:47 1227 (which I assume is a time and line run reference)

12 November 2022
Unprompted review
Rated 2 out of 5 stars

SlimFast Shake

Bought the SlimFast Vanilla Shake 204 kcal bottle. It is low calorie and convenient to carry around, but I really struggled to drink it, it was extremely sweet.
I used to love the taste, but now it leaves lingering chemical aftertaste. Rather have an unsweetened version and let people add sweeteners if they want to.

3 November 2022
Unprompted review
Rated 1 out of 5 stars

I just bought the 300g chocolate "new…

I just bought the 300g chocolate "new recipe" from Savers in Addlestone.
Must have a manufacturing fault as smells and taste like paint. I feel like I have been poisoned.
I will be calling the number of slim fast in the morning,

26 October 2022
Unprompted review
Rated 1 out of 5 stars

What have they done to the recipes

What have they done to the recipes. The chocolate smells of paint and the flavour bears no resemblance to the old recipe. Why do these manufacturers think we are stupid and will not notice this obvious attempt to reduce the quality of their products why still charging us increasing prices.

2 October 2022
Unprompted review

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look