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5 Best Diet Shakes of 2026

Last Updated - 03/03/2026

1
Best Choice
23% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

USN
23% Off

USN I Diet Fuel Ultralean Meal Replacement Shake (Strawberry, 2kg - 36 Servings/Meals) High Protein, Low Calorie Drink to Support Weight Loss & Balanced Diet I Added 24 Vitamins & Minerals

USN

£34.75

£45.00
(23% Off)

More Details
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.
£34.75
£45.00 (23% Off)
2
Best Value
31% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

USN
31% Off

USN I Diet Fuel Ultralean Meal Replacement Shake (Strawberry, 2kg - 36 Servings/Meals) High Protein, Low Calorie Drink to Support Weight Loss & Balanced Diet I Added 24 Vitamins & Minerals

USN

£31.27

£45.00
(31% Off)

More Details
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.
£31.27
£45.00 (31% Off)
3
12% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

USN
12% Off

USN I Diet Fuel Ultralean Meal Replacement Shake (Strawberry, 1kg - 18 Servings/Meals) High Protein, Low Calorie Drink to Support Weight Loss & Balanced Diet I Added 24 Vitamins & Minerals

USN

£22.90

£26.00
(12% Off)

More Details
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.
£22.90
£26.00 (12% Off)
4
21% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

USN
21% Off

USN I Diet Fuel Ultralean Meal Replacement Shake (Strawberry, 1kg - 18 Servings/Meals) High Protein, Low Calorie Drink to Support Weight Loss & Balanced Diet I Added 24 Vitamins & Minerals

USN

£20.61

£26.00
(21% Off)

More Details
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.
£20.61
£26.00 (21% Off)
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Protein Works

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

Protein Works

£22.37

More Details
Main highlights
- KICK-START YOUR WEIGHT LOSS JOURNEY: Diet Meal 360 - GOLD (previously known as Diet Meal Replacement) is a 100% nutritionally complete, high protein, meal replacement shake, specially designed to help support your weight loss journey.
- HELPS YOU STICK TO YOUR DIET: The key to dietary success is following and sticking to a healthy diet, one that fits into your lifestyle and also delivers on nutrition and taste. Diet Meal 360 - GOLD offers the perfect calorie-controlled shake to help support your weight loss journey.
- FULLER FOR LONGER: Each meal replacement shake has been designed to deliver an optimal tri-protein blend, mixed with fibre-full ingredients to help you feel fuller for longer.
- ESSENTIAL VITAMINS & MINERALS BLEND: The PW diet meal range is based on our unique 360 concept which takes a holistic approach to each formulation. Contains 24 essential vitamins & minerals your body needs to help support overall health & well-being. From Vitamin B3, B12 to Calcium and Asorbic Acid, each synergistically working to help support normal functioning of your nervous system, immune and gut function, whilst nourishing your body. (Packaging and name may vary)
- CUTTING-EDGE INGREDIENTS: Our Diet Meal 360 - GOLD shakes are made from a unique blend of real food ingredients uniquely formulated to deliver the macro and micro nutrients your body needs. Choose from a variety of delicious flavours and discover the perfect meal replacement shake for you.
£22.37

5 Best Diet Shakes of 2026

USN I Diet Fuel Ultralean Meal Replacement Shake (Strawberry, 2kg - 36 Servings/Meals) High Protein, Low Calorie Drink to Support Weight Loss & Balanced Diet I Added 24 Vitamins & Minerals

USN I Diet Fuel Ultralean Meal Replacement Shake (Strawberry, 2kg - 36 Servings/Meals) High Protein, Low Calorie Drink to Support Weight Loss & Balanced Diet I Added 24 Vitamins & Minerals

USN I Diet Fuel Ultralean Meal Replacement Shake (Strawberry, 1kg - 18 Servings/Meals) High Protein, Low Calorie Drink to Support Weight Loss & Balanced Diet I Added 24 Vitamins & Minerals

USN I Diet Fuel Ultralean Meal Replacement Shake (Strawberry, 1kg - 18 Servings/Meals) High Protein, Low Calorie Drink to Support Weight Loss & Balanced Diet I Added 24 Vitamins & Minerals

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

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Protein Works | Diet Meal 360 - GOLD Innovation, Diet Meal Replacement Shake, Supports Weight Loss, 24 Vitamins & Minerals, Added Flaxseed, Inulin, Omega 3, Strawberries 'n' Cream, 7 Meals, 500g

Protein Works | Diet Meal 360 - GOLD Innovation, Diet Meal Replacement Shake, Supports Weight Loss, 24 Vitamins & Minerals, Added Flaxseed, Inulin, Omega 3, Strawberries 'n' Cream, 7 Meals, 500g

Huel Ready-to-drink Meal, Chocolate Protein Drink, 8 x 500ml Bottles, Protein Shakes, Pre-Portioned Meal, 20g of Protein per Bottle, Rich in Essential Vitamins, Minerals, Meal Replacement Shake

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