Advertising Disclosure Diet Shakes Comparison - June 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  9.5Excellent | 5 Best Value  9.3Excellent | 6  9.2Excellent | 7  9.1Excellent |
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ModelUSN Diet Fuel Ultralean Meal Replacement Shake | Strawberry | 2kg with 36 Servings | High Protein, Low Calorie Shake | Calorie-Controlled Diet Support for Weight Loss | 24 Vitamins & Minerals | Model USN Diet Fuel Ultralean Meal Replacement Shake | Strawberry | 1kg with 18 Servings | High Protein, Low Calorie Shake | Calorie-Controlled Diet Support for Weight Loss | 24 Vitamins & Minerals | Model SlimFast • Meal Replacement Powder • Blueberry Flavour • Weight Loss Formula • 225 Cals • 14g Protein • 23 Vitamins + Minerals • No Added Sugar • Gut Friendly • 4g of Fibre • 584g (16 meals) | Model Protein Works | Diet Meal 360 - GOLD Innovation, Diet Meal Replacement Shake, Supports Weight Loss, 24 Vitamins & Minerals, Added Flaxseed, Inulin, Omega 3, Chocolate Silk, 14 Meals, 1kg | Model SlimFast • Strawberry Meal Replacement Shake • 204 Cals • 15g Protein • 23 Vitamins + Minerals • No Added Sugar • Ready to Drink • 4.9g of Fibre • Sweet & Fruity Strawberry Flavour • 6 x 325 ml | Model SlimFast • Meal Replacement Powder • Strawberry Flavour • Weight loss Formula • 225 Cals • 14g Protein • 23 Vitamins + Minerals • No Added Sugar • Gut Friendly • Ready to Drink • 4g of Fibre • 583g | Model Protein Works | Diet Meal 360 - PLATINUM Innovation, Diet Meal Replacement Shake, Supports Weight Loss, 26 Vitamins & Minerals, Added Flaxseed, Inulin, Omega 3, Strawberries 'n' Cream, 8 Meals, 500g |
BrandUSN | Brand USN | Brand SlimFast | Brand Protein Works | Brand SlimFast | Brand SlimFast | Brand Protein Works |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews | Reviews |
Tech Specs | ||||||
Protein Per Serving25g | Protein Per Serving - | Protein Per Serving - | Protein Per Serving - | Protein Per Serving - | Protein Per Serving - | Protein Per Serving - |
Net Weight2kg | Net Weight 1kg | Net Weight - | Net Weight - | Net Weight - | Net Weight 584 g | Net Weight - |
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 | Strawberry | 2kg with 36 Servings | High Protein, Low Calorie Shake | Calorie-Controlled Diet Support for Weight Loss | 24 Vitamins & Minerals
Why we love it
Keeps you feeling full longer
Convenient meal replacement
Supports weight loss goals
Main highlights- YOUR NEW MORNING ROUTINE: Get your day off to the best possible start with these fantastic, and delicious, USN Meal Replacement Shakes. You don’t need to go without breakfast to help you lose weight - one quick shake and you are ready to take on the day!
- USN HIGH PROTEIN SHAKE POWDER: Use Diet Fuel Meal Replacement Shakes to help you reach your weight-loss goals. Perfect support for a low-calorie diet - a quick & easy way to get what your body needs, without the calories. Packed with 24 Vitamins & Minerals.
- ULTIMATE SPORTS NUTRITION: USN are at the forefront of sports nutrition research, making effective sports nutrition supplements for professional and non-professional athletes, pre or post workout. Science-driven nutrition so we can achieve together.
- HIGH PROTEIN MEAL REPLACEMENT: Protein is absolutely vital if you are looking to lose weight. When we take protein on board, it triggers our satiety hormones, which make us feel full. USN meal replacement shakes have 25g of protein per serving.
- FEEL FULL FOR LONGER: USN’s meal replacement powder has been specially formulated by a dedicated team to ensure you feel full for longer, reducing the need to snack or over-eat and supporting a reduced calorie diet - to help you reach your weight goals.
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9.8
2USN
USN Diet Fuel Ultralean Meal Replacement Shake | Strawberry | 1kg with 18 Servings | High Protein, Low Calorie Shake | Calorie-Controlled Diet Support for Weight Loss | 24 Vitamins & Minerals
Why we love it
Keeps you full for longer
High in protein for weight support
Convenient and easy to prepare
Main highlights- YOUR NEW MORNING ROUTINE: Get your day off to the best possible start with these fantastic, and delicious, USN Meal Replacement Shakes. You don’t need to go without breakfast to help you lose weight - one quick shake and you are ready to take on the day!
- USN HIGH PROTEIN SHAKE POWDER: Use Diet Fuel Meal Replacement Shakes to help you reach your weight-loss goals. Perfect support for a low-calorie diet - a quick & easy way to get what your body needs, without the calories. Packed with 24 Vitamins & Minerals.
- ULTIMATE SPORTS NUTRITION: USN are at the forefront of sports nutrition research, making effective sports nutrition supplements for professional and non-professional athletes, pre or post workout. Science-driven nutrition so we can achieve together.
- HIGH PROTEIN MEAL REPLACEMENT: Protein is absolutely vital if you are looking to lose weight. When we take protein on board, it triggers our satiety hormones, which make us feel full. USN meal replacement shakes have 25g of protein per serving.
- FEEL FULL FOR LONGER: USN’s meal replacement powder has been specially formulated by a dedicated team to ensure you feel full for longer, reducing the need to snack or over-eat and supporting a reduced calorie diet - to help you reach your weight goals.
-
9.7
3SlimFast
SlimFast • Meal Replacement Powder • Blueberry Flavour • Weight Loss Formula • 225 Cals • 14g Protein • 23 Vitamins + Minerals • No Added Sugar • Gut Friendly • 4g of Fibre • 584g (16 meals)
Main highlights- NEVER RUN ON EMPTY. FUEL YOUR TASTEBUDS WITH A BERRY DELICIOUS PICK-ME-UP. Bursting with the sweet and slightly tangy taste of ripe blueberries, this shake delivers a refreshing fruity flavour with a smooth, creamy finish. Light yet satisfying, it’s a delicious way to brighten your routine. Ideal for those who enjoy a vibrant berry flavour with a refreshing twist.
- MAKE EVERY DAY TASTY TASTY GOOD WITH HIGH PROTEIN, BALANCED NUTRITION. Packed with goodness, this shake helps support your everyday nutrition, one bottle at a time. Key nutrients like magnesium and potassium help support normal muscle function, while B vitamins and iron contribute to energy release and reducing tiredness. Vitamins A, D and E support immune health and overall balance, helping you feel your best.
- SATISFY YOUR HUNGER WITH A RICH & INDULGENT FEEL GOOD PICK-ME-UP. Simple add 2 level scoops to 250ml of cold skimmed milk or water. Each shake is gut friendly, fights fatigue, supports immunity and metabolism. Irresistible flavours, designed for busy days, this ready-made SlimFast shake fits seamlessly into any lifestyle. Perfect for mornings in a rush, post-workout refuelling, or a quick meal between meetings, it delivers convenient nutrition in a smooth, satisfying shake that’s easy to enjoy on the move.
- LOW IN CALORIE. HIGH IN PROTEIN. MEAL REPLACEMENT POWDER FOR SUSTAINABLE WEIGHT LOSS RESULTS. With just 225 calories and no added sugar, this shake is a convenient way to stay on top of your health or weight loss goals. Every shake contains 14g of protein and 4g of fibre to help keep you full for longer. Smooth, creamy, and easy to enjoy on the go, its perfect for busy mornings, pre- or post- workout routines, or anytime you need a lighter, smarter meal.
- EASY AS 1-2-3. Part of the SlimFast 1-2-3 Method, this shake makes managing your diet simple and structured. Enjoy two SlimFast meal replacements, like this ready-to-drink shake, plus three balanced snacks, and one nutritious meal to help keep you on track. It’s an easy, flexible approach designed to support portion control, balanced nutrition, and healthier daily habits — perfect for fitting weight management and weight loss into real life.
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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.
