slimfast.co.uk

2.2
2.2 Based on 104 reviews

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...

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Average Rating

2.2

/
5

104 Reviews

5 Star
20%
4 Star
6%
3 Star
7%
2 Star
12%
1 Star
56%

All Reviews

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Review Time

Kelly Bell
Suffered with an eating disorder for years. Started using slim fast shakes just to get some nutrient

Suffered with an eating disorder for years. Started using slim fast shakes just to get some nutrients back in my body as most protien shakes dont inclyde the vitamins and minerals. I am now a month into eating properly but still have 2 shakes a day with oat or almond milk have all the flavors and enjoy them all. Im at my ideal weight now and feel good 😀

5
Date of experience: Feb 24, 2026
Kelly Bell
Actually using to gain weight!

Suffered with an eating disorder for years. Started using slim fast shakes just to get some nutrients back in my body as most protien shakes dont inclyde the vitamins and minerals. I am now a month into eating properly but still have 2 shakes a day with oat or almond milk have all the flavors and enjoy them all. Im at my ideal weight now and feel good 😀

5
Date of experience: Feb 24, 2026
I’ve been a loyal slim fast user for…

I’ve been a loyal slim fast user for over 9 years, for my job they were the perfect meal replacement. The latte slim fast shakes dated 10/26 onwards there is a terrible chemical taste, making them undrinkable. I’ve tried to raise the issue twice but have yet to have a response.

1
Date of experience: Feb 05, 2026
David Kirk
Completed a survey to receive a free sample…

Completed a survey to receive a free sample pack from Slim Fast to find out that this is essentially another data capture and only a competition for the first 500 Applicants (which no one tends to receive).Was genuinely interested to sample some of their products but now I feel misled and have little trust in this company. Disappointed, but I guess this kind of trickery somewhat works for them.

1
Date of experience: Feb 04, 2026
Lees
Dodgy

SlimFast said they would send a bunch of goods to try if I did their survey, which I did. They sent nothing and won't reply to me. What a dodgy company.

1
Date of experience: Jan 29, 2026
Scamming People

Am really very shocked by the behaviour of SlimFast.They promised a bundle of their goods in exchange for completing a survey but never sent the goods and are now uncontactable. My sister had the same experience.Will avoid purchasing from them in the future.

1
Date of experience: Jan 29, 2026
Anna
Data Grab Under False Pretenses

Was previously a fan and was looking forward to trying some of their current range in exchange for completing a detailed survey. Unfortunately they didn't send out any of what they promised and their contact email rejects any correspondence. My sister has had the identical problem, too, so this was not a one-off occurrence.So disappointing that such a well known brand would run a scam like this.Won't be buying again.

1
Date of experience: Jan 29, 2026
Joanne Bowen
Bought some protein crisp and upon…

Bought some protein crisp and upon eating them something unusual was attached to the crisp which I removed from my mouth which was a piece of plastic. I reported it to customer service and given a case number and replied with a picture/evidence. They advised they would send me an envelope to return it back to them. Called today and they said they have not received a picture and to send from another email address which I have now done. I have also not received the return envelope. The customer service person I spoke to was rude and talked over me. Asked to speak to a manager got told not available.

1
Date of experience: Jan 26, 2026
Sue Barker
New Meal replacement bars heading for the bin

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 Cambridge bars and binning the Slimfast today - agree with others who loved your choc orange bars which were axed years ago - afraid Slimfast has gone downhill fast ever since .

1
Date of experience: Nov 20, 2025
Samantha Thirlwell
New meal bars are disappointing

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 love the shakes but don't want to have two of them a day.

2
Date of experience: Oct 29, 2025

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Business Details

  • 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

  • language https://slimfast.co.uk

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