Advertising Disclosure Diet Shakes Comparison - November 2025
5 Best Diet Shakes In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.9Exceptional | 2  9.8Exceptional | 3 Best Value  9.7Exceptional | 4  9.6Exceptional | 5  9.4Excellent |
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ModelUSN Diet Fuel Ultralean Meal Replacement Shake Powder (Strawberry, 2kg - 36 Servings/Meals) Tasty High Protein Shake To Feel Full For Longer, Weight Control Powder, Drink Mix With 25g Protein | Model SlimFast Meal Replacement Shake for Weight Loss & Balanced Diet, High Protein, Vitamins, Minerals, White Chocolate & Raspberry Flavour, 16 Meals, 584 g, Packaging May Vary | Model USN Diet Fuel Ultralean Meal Replacement Shake Powder, Strawberry Flavour - 1kg, High Protein Shake Powdered Drink Mix, Low Calorie Diet & Weight Control Powder, 25g Protein | Model SlimFast Ready To Drink Shake, Meal Replacement Shakes for Weight Loss and Balanced Diet, High Protein, Vitamins and Minerals, No Added Sugar, Raspberry and White Chocolate Flavour, 6 x 325 ml | Model SCI-MX Diet Meal Replacement Shake - Chocolate Flavour - High Protein Shake + 24 Essential Micronutrients - Non-GMO - 1KG (18 servings) 209 calories per serving |
BrandUSN | Brand SlimFast | Brand USN | Brand SlimFast | Brand SCI-MX |
Reviews | Reviews | Reviews | Reviews | Reviews  |
Features | ||||
Worth the money 9.1 | Worth the money 9.1 | Worth the money 8.6 | Worth the money 8.4 | Worth the money 8.1 |
Serving size 9.6 | Serving size 9.3 | Serving size 8.6 | Serving size 8.4 | Serving size 8.1 |
Taste 9.4 | Taste 8.6 | Taste 9.1 | Taste 8.6 | Taste 8.6 |
Tech Specs | ||||
FormatPowder | Format Powder | Format Powder | Format Liquid | Format Powder |
Item weight2.3 Kilograms | Item weight 584 Grams | Item weight 1 Kilograms | Item weight 15 Grams | Item weight 1 Kilograms |
Manufacturer contactUSN UK Ltd, Seven House, High Street, Longbridge, B31 2UQ | Manufacturer contact Glanbia Performance Nutrition Nit 3 Ronaldkirk Road Riverside Park TS2 1XA Phone: 44 1642 248866 | Manufacturer contact USN UK Ltd, Seven House, High Street, Longbridge, B31 2UQ | Manufacturer contact Glanbia Nutrition, Unit 3, Romaldkirk Road, Riverside Park, Middlesbrough, TS2 1XA. | Manufacturer contact Supreme Imports Limited, Manchester M17 1AF |
FlavourStrawberry | Flavour Raspberry White Choc | Flavour Strawberry | Flavour White Chocolate Raspberry | Flavour Chocolate |
Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1USN13% OffUSN Diet Fuel Ultralean Meal Replacement Shake Powder (Strawberry, 2kg - 36 Servings/Meals) Tasty High Protein Shake To Feel Full For Longer, Weight Control Powder, Drink Mix With 25g Protein
9.6 Serving size9.4 Taste9.1 worth the moneyWhy we love it
The product is high in protein and fiber, which helps you feel fuller for longer.
It comes in a great tasting strawberry flavor.
Each serving contains the essential nutrients for safe and healthy weight loss.
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9.8
2SlimFast19% Off
SlimFast Meal Replacement Shake for Weight Loss & Balanced Diet, High Protein, Vitamins, Minerals, White Chocolate & Raspberry Flavour, 16 Meals, 584 g, Packaging May Vary
9.3 Serving size9.1 worth the money8.6 TasteMain highlights- Substituting two main daily meals with meal replacements contributes to weight loss, and substituting one contributes to weight maintenance. Source: COMMISSION REGULATION (EU) No 432/2012 of 16 May 2012
- SATISFY HUNGER: Enjoy two SlimFast diet shakes or healthy snacks (bars) a day as part of our 3.2.1 plan to help you lose weight and keep it off, or enjoy it as part of your balanced diet
- NEVER RUN ON EMPTY: SlimFast Balanced High Protein Meal Replacement Powder supports your weight loss and helps to keep it off, with 14g of protein, no added sugar, and less than 230 kcal per serving
- MULTIVITAMIN AND MINERAL POWERHOUSE: 23 vitamins and minerals (incl. Vitamin A, Vitamin D, Vitamin C, Vitamin B6, Vitamin B12, magnesium and zinc) to support your immunity and keep your metabolism humming
- IRRESISTIBLE FLAVOURS: Our meal replacement shakes for weight loss come in various delish flavours, making your weight loss journey tasty and enjoyable
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9.7
3USN23% Off
USN Diet Fuel Ultralean Meal Replacement Shake Powder, Strawberry Flavour - 1kg, High Protein Shake Powdered Drink Mix, Low Calorie Diet & Weight Control Powder, 25g Protein
9.1 Taste8.6 worth the money8.6 Serving sizeWhy we love it
Protein rich to help you feel fuller longer
Fibre packed for lasting, safe weight loss
Sugar free to maintain normal blood sugar levels
Our ranking system
The topchoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. topchoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
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Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
