Best Diet Shakes Deals Online in the UK (25 Deals Found)

Last Updated - 19/06/2026 Sort By:

Best Choice
SlimFast

New
SlimFast • Meal Replacement Powder • Strawberry Flavour • Weight loss Formula • 225 Cals • 14g Protein • 23 Vitamins + M
🔥 LOW IN CALORIE. HIGH IN PROTEIN. MEAL REPLACEMENT POWDER FOR SUSTAINABLE WEIGHT LOSS RESULTS. With just 225 calories

£7.91 £11.00
Protein Works

New
Protein Works | Diet Meal 360 - GOLD Innovation, Diet Meal Replacement Shake, Supports Weight Loss, 24 Vitamins & Minera
KICK-START YOUR WEIGHT LOSS JOURNEY: Diet Meal 360 - GOLD (previously known as Diet Meal Replacement) is a 100% nutritio

£19.99
New
The 1:1 Diet By CWP - Mint flavour shakes x 8
Cambridge Weight Plan 1:1 diet - Chocolate Mint Shake x 8.

£17.22
Best Value
SlimFast

New
SlimFast • Meal Replacement Powder • Blueberry Flavour • Weight Loss Formula • 225 Cals • 14g Protein • 23 Vitamins + Mi
🔥 LOW IN CALORIE. HIGH IN PROTEIN. MEAL REPLACEMENT POWDER FOR SUSTAINABLE WEIGHT LOSS RESULTS. With just 225 calories

£8.00 £11.00
New
Meal Replacement 2.2Kg Diet Shakes Slim Weight Loss Whey Protein Shake Powder
Plus, it’s high in protein to make sure you’re hitting your daily levels, and high in fibre, which is an essential part

£20.99
13% Off
USN

New
USN Diet Fuel Ultralean Meal Replacement Shake | Strawberry | 1kg with 18 Servings | High Protein, Low Calorie Shake | C
USN HIGH PROTEIN SHAKE POWDER: Use Diet Fuel Meal Replacement Shakes to help you reach your weight-loss goals. Perfect s

£22.50 £26.00
Grenade

New
Grenade Fudge Brownie High Protein Shake, 8 x 330 ml - Ready to Drink Milk Protein Shakes with Over 24 g Protein per Bot
HIGH PROTEIN: More than 24 g protein per 330 ml bottle

£13.49
New
Diet Fuel UItralean 4.4KG Meal Replacement Slim Weight Loss Whey Protein Shake
Plus, it’s high in protein to make sure you’re hitting your daily levels, and high in fibre, which is an essential part

£31.99
SlimFast

New
Powder Tin Raspberry and White Chocolate
Just add milk, shake, and you're ready to go

£10.67 £10.99
New
SlimFast Meal Replacement Shake for Weight Loss & Balanced Diet 16 Servings 584g

£10.49
13% Off
USN

New
USN Diet Fuel Ultralean Meal Replacement Shake | Chocolate | 1kg with 18 Servings | High Protein, Low Calorie Shake | Ca
USN HIGH PROTEIN SHAKE POWDER: Use Diet Fuel Meal Replacement Shakes to help you reach your weight-loss goals. Perfect s

£22.50 £26.00
40% Off
Applied Nutrition

New
Applied Nutrition Diet Whey - High Protein Powder Supplement, Low Carb & Sugar, for Weight Management with CLA, L Carnit
HIGH PROTEIN BLEND: Applied Nutrition’s Diet Whey Protein Powder combines CLA, L-Carnitine, Green Tea, Whey Protein Isol

£12.00 £19.95
New
CWP Diet Products - Chocolate Shakes x 15
Cambridge Weight Plan 1:1 diet Chocolate Shake x 15.

£31.90
27% Off
SlimFast

New
SlimFast Ready To Drink Shake, Tasty, Balanced Shake with Vitamins and Minerals, No Sugar, Vanilla Flavour, 6 x 325 ml M
🔥 LOW IN CALORIE. HIGH IN PROTEIN. READY TO DRINK. Our meal replacement shakes contain no artificial preservatives or c

£8.00 £11.00
New
The 1:1 Weight Plan By CWP Diet Products - Strawberry shakes x 21 BNIB
Cambridge Weight Plan 1:1 diet Strawberry Shakes x 21.

£47.50
Protein Works

New
Protein Works | Diet Meal 360 - PLATINUM Innovation, Diet Meal Replacement Shake, Supports Weight Loss, 26 Vitamins & Mi
BALANCED, COMPLETE NUTRITION: Each shake of Diet Meal 360 - PLATINUM (previously known as Diet Meal Replacement Extreme)

£12.79
New
The 1:1 Diet By CWP - Mint flavour shakes x 21 *BNIB*
Cambridge Weight Plan 1:1 Diet Chocolate Mint Shakes x 21.

£47.50
New
CWP 1-1 Chocolate Mint Diet Product
CWP 1-1 chocolate mint x 21

£40.22
New
CWP Diet Products - Chocolate Shakes x 21 BNIB
CWP 1-1 chocolate milk shake x 21

£40.22
New
Vegan Diet Meal Replacement Shake, Chocolate Bueno, 500g, Low Sugar High
Achieve your weight loss goals with Protein Works Vegan Diet Meal 360 - GOLD in delicious Chocolate Bueno. This 100% pla

£12.61
New
SlimFast Shake Powder 16 Servings (584g) High Protein Meal Replacement Diet
Weight: 584g. Each serving provides 14g of protein, no added sugar, and less than 230 calories, helping you manage hunge

£9.98
New
CWP The 1:1 Diet 21 x Shakes 1:1 CWP Products

£45.00
New
SlimFast Shakes Meal Replacement High Protein Diet Ready To Drink 6 X 325ml Pack
MULTIVITAMIN AND MINERAL POWERHOUSE: protein drinks with 23 vitamins and minerals (incl. Source: COMMISSION REGULATION (

£10.99
New
Diet Shake Meal Replacement 500g Protein Fast Weight Loss Shakes Slimming Powder
Our appetite-suppressing shakes are formulated to be low in sugar, fat, and calories, yet rich in essential nutrients an

£9.99
New
Vegan Diet Protein Shake Meal Replacement Weight Loss Keto Diet Shakes 2.1KG
Introducing an amazing new product from 1ne Nutrition Vegan Diet Protein. If you are looking to lose fat, but have lacto

£31.99

25 Diet Shakes deals are available from: Amazon, eBay stores, starting from £7.91.
The biggest discount we found is 40% on Applied Nutrition Diet Whey - High Protein Powder Supplement, Low Carb & Sugar, for Weight Management with CLA, L Carnitine, Green Tea (450g - 18 Servings) (Vanilla) at Amazon.
The lowest price we found is £7.91 while the highest is £47.50.
Prices for the best Diet Shakes deals average at £21.86.
Last updated on June 19, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Diet Shakes.