Advertising Disclosure Diet Shakes Comparison - February 2026
7 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. As an Amazon Associate we may earn from qualifying purchases. We may receive a commission from purchases made through links on our site, which will help us continue to provide you with value.
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| 1 Best Choice  9.9Exceptional | 2  9.8Exceptional | 3  9.7Exceptional | 4  9.4Excellent | 5  9.3Excellent | 6  9.2Excellent | 7  8.9Very Good |
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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 SlimFast Ready To Drink Shake, Meal Replacement Shakes for Weight Loss and Balanced Diet, High Protein, Vitamins and Minerals, No Added Sugar, Vanilla Flavour, 6 x 325 ml, Packaging May Vary | Model SlimFast Meal Replacement Shake Weight Loss & Balanced Diet, Vitamins and Minerals, Low Calorie, High Protein, Strawberry Flavour, 16 servings, 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 Shake That Weight - 21x Meal Replacement Shakes - Diet Shakes for Weight Loss (Chocolate, Vanilla, Banana, Strawberry) |
BrandUSN | Brand SlimFast | Brand SlimFast | Brand SlimFast | Brand USN | Brand SlimFast | Brand Shake That Weight |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews | Reviews  |
Features | ||||||
Worth the money 9.1 | Worth the money 9.1 | Worth the money 8.6 | Worth the money 9.1 | Worth the money 8.6 | Worth the money 7.9 | Worth the money 9.4 |
Taste 9.4 | Taste 8.6 | Taste 8.9 | Taste 8.9 | Taste 9.1 | Taste 8.4 | Taste 9.9 |
Serving size 9.6 | Serving size 9.3 | Serving size 9.3 | Serving size 9.3 | Serving size 8.6 | Serving size 7.9 | Serving size 9.9 |
Simple to use 9.4 | Simple to use 9.3 | Simple to use 9.4 | Simple to use 9.4 | Simple to use 8.9 | Simple to use 8.9 | Simple to use 9.9 |
Tech Specs | ||||||
Item weight2.3 Kilograms | Item weight 584 Grams | Item weight 1950 Grams | Item weight 0.29 Kilograms | Item weight 1 Kilograms | Item weight 15 Grams | Item weight 725 Grams |
FlavourStrawberry | Flavour Raspberry White Choc | Flavour Vanilla | Flavour Strawberry | Flavour Strawberry | Flavour White Chocolate Raspberry | Flavour Vanilla |
FormatPowder | Format Powder | Format Liquid | Format - | Format Powder | Format Liquid | Format - |
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 SlimFast, PO Box 145, Birmingham, B24 8WR, UK Slimfast, One Victoria Square, Birmingham, B1 1BD, UK EU Customer Service, 4 Waterside, Citywest Business Campus, Dublin 24, Ireland | Manufacturer contact - | 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 - |
Allergen Information- | Allergen Information - | Allergen Information Contains: Milk | Allergen Information Contains: Soy, Milk | Allergen Information Contains: Soy, Milk | Allergen Information - | Allergen Information - |
Weight2 Kilograms | Weight - | Weight - | Weight 0.29 Kilograms | Weight 1 Kilograms | Weight - | Weight - |
Volume2 Millilitres | Volume - | Volume 1950 Millilitres | Volume - | Volume - | Volume 1950 Millilitres | Volume - |
Package weight2.32 Kilograms | Package weight - | Package weight - | Package weight - | Package weight - | Package weight 2.2 Kilograms | Package weight 0.88 Kilograms |
Storage Instructions- | Storage Instructions - | Storage Instructions Store in a cool, dry place once open, keep refrigerated and drink within 48 hours. Batch code/best before end: see side of bottle. | Storage Instructions Store in a cool dry place. | Storage Instructions In a cool, dry place | Storage Instructions - | Storage Instructions - |
Available On | Available On | 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
1USNUSN 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 Taste9.4 Simple to useWhy 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.
-
9.8
2SlimFast
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 size9.3 Simple to use9.1 worth the moneyMain 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
-
9.7
3SlimFast
SlimFast Ready To Drink Shake, Meal Replacement Shakes for Weight Loss and Balanced Diet, High Protein, Vitamins and Minerals, No Added Sugar, Vanilla Flavour, 6 x 325 ml, Packaging May Vary
9.4 Simple to use9.3 Serving size8.9 TasteMain highlights- Want to look great for that special occasion coming up or just have some weight to lose
- The pack contains one bottle of milkshake
- 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 2017
- 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
- READY MEALS IN A BOTTLE: SlimFast ready-to-drink meals, fuss-free high protein meal replacement shake that supports your weight loss and help to keep it off, with 15 g of protein, no added sugar, and 204 kcal per serving
- One shake replaces one meal
- MULTIVITAMIN AND MINERAL POWERHOUSE: protein drinks with 23 vitamins and minerals (incl. Vitamin A, Vitamin D, Vitamin C, Vitamin B6, Vitamin B12, magnesium and zinc), and 4.9 g of fibre per ready-to-drink meal
- IRRESISTIBLE FLAVOURS: Our ready-to-drink meal replacement shakes for weight loss come in delish flavours, making your weight loss journey tasty, hassle-free and enjoyable
- Each shake contains 206 kcal
- 30% less sugar, same great taste
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Features
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Consumer Reviews
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Popularity
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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.
