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

Last Updated - 07/09/2025 Sort By:

Best Choice
USN

New
USN Diet Fuel Ultralean Meal Replacement Shake Powder, Strawberry Flavour - 1kg, High Protein Shake Powdered Drink Mix,
USN Protein powder drink mix: High protein meal replacement shake powder to help support your weight loss goals. With ad

£18.81 £26.00
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21% Off
SlimFast

New
SlimFast Meal Replacement Shake for Weight Loss & Balanced Diet, High Protein, Vitamins, Minerals, White Chocolate & Ras
NEVER RUN ON EMPTY: SlimFast Balanced High Protein Meal Replacement Powder supports your weight loss and helps to keep i

£7.82 £9.99
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New
Meal Replacement Diet Shakes Slim Weight Loss Fast Whey Protein Shakes Powder
Xcelerate Nutrition’s Diet Plus is a truly advanced, high protein shake designed to support fat loss. It contains a mult

£17.99
Best Value
SlimFast

New
SlimFast Ready To Drink Shake, Meal Replacement Shakes for Weight Loss and Balanced Diet, High Protein, Vitamins and Min
READY MEALS IN A BOTTLE: SlimFast ready-to-drink meals, fuss-free high protein meal replacement shake that supports your

£8.39 £11.00
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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 Powder (Strawberry, 2kg - 36 Servings/Meals) Tasty High Protein Shake To
USN HIGH PROTEIN SHAKE POWDER: Use Diet Fuel Meal Replacement Shakes to help you reach your weight-loss goals. Perfect s

£38.95 £45.00
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Shake That Weight

New
Shake That Weight 10x Diet Shakes - Chocolate Orange Meal Replacement Plan for Weight Loss - 20g Protein - Very Low-Calo
DIET SHAKE - reach your weight loss goals with Shake That Weight’s low carb meal replacement shakes, designed for rapid

£19.50
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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
13% Off
SlimFast

New
SlimFast Meal Replacement Shake for Weight Loss & Balanced Diet, Vitamins and Minerals, Low Calorie, High Protein, Choco
NEVER RUN ON EMPTY: SlimFast Balanced High Protein Meal Replacement Powder supports your weight loss and helps to keep i

£3.91 £4.50
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New
PSN Diet Whey Protein 1Kg-3Kg Weight Loss Low Carb Meal Replacement Shake Powder
Pure Source Nutrition Diet Protein contains CLA (conjugated linoleic acid), a safe, natural, research proven diet aid. P

£17.99
Protein Works

New
Protein Works - Diet Meal Replacement Extreme Shake | 200 Calorie Meal | High Protein Meal | Supports Weightloss | 16 Se
BALANCED, COMPLETE NUTRITION: Each shake is packed full of real food ingredients and all the nutrients your body needs t

£22.99 £23.70
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10% Off
SCI-MX

New
SCI-MX Diet Meal Replacement Shake - Chocolate Flavour - High Protein Shake + 24 Essential Micronutrients - Non-GMO - 1K
🍫 WHAT’S IN THIS CHOCOLATE DIET SHAKE: A comprehensive formula with a healthy balance of protein, carbs, and fat + 24 e

£19.79 £21.99
New
CWP The 1:1 Diet 21 x Shakes

£46.00
Shake That Weight

New
Shake That Weight - 21x Meal Replacement Shakes - Diet Shakes for Weight Loss (Chocolate, Vanilla, Banana, Strawberry)
DIET SHAKE BUNDLE — reach your weight loss goals with Shake That Weight’s low carb meal replacement shakes, designed for

£34.65 £35.70
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New
Slim Fast Shake Powder Weight Loss Diet Drink Sporting Protein Meal All Flavours
Looking to lose weight and keep it off in a simple and tasty way?. Each SlimFast shake has no added sugar. It is also a

£10.98
Huel

New
Huel Ready-to-Drink Meal, Chocolate Protein Drink, 8 x 500ml Bottles, Protein Shakes, Pre-Portioned Meal, 20g of Protein
COMPLETE MEAL IN A BOTTLE: Each bottle delivers up to 20g of plant-based protein, 26 essential vitamins and minerals, an

£27.99
New
Slim Fast Shake Powder Diet Weight Loss Drink Sporting Protein Meal Replacement
23 vitamins and minerals (incl. ).

£10.25
New
Slim Fast Shake Powder Weight Loss Diet Drink Sporting Protein Meal All Flavours
Each shake is High in protein to support muscle maintenance. May contain traces of eggs, peanuts, and nuts. Low calorie

£6.45
New
SlimFast Meal Replacement Shake for Weight Loss & Balanced Diet Vitamins 292g UK
With14g of high-quality protein per serving ,no added sugar, andless than 230 kcal, SlimFast supports your energy levels

£5.98
New
XLS-Nutrition Weight Loss Meal Replacement Shake Diet Supplement - 400g, Vanilla

£7.99
New
SlimFast Meal Replacement Shake for Weight Loss & Balanced Diet, Vitamins and
Looking to lose weight and keep it off in a simple and tasty way?. Each SlimFast shake has no added sugar. It is also a

£6.12
New
Meal Replacement Diet Shakes Slim Weight Loss Fast Whey Protein Shakes 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

£8.99
New
Slim Fast Shake Powder Weight Loss Diet Drink Sporting Protein Meal All Flavours
(✅Irresistible Flavour – Makes dieting feel like a treat, not a chore. High Protein | 23 Vitamins & Minerals | Low Calor

£9.49
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
New
Diet Whey Protein Powder 20x Shake Meal Replacement Low Carb Protein Shakes
Xcelerate Nutrition’s Diet Plus is a truly advanced, high protein shake designed to support fat loss. It contains a mult

£17.99

25 Diet Shakes deals are available from: Amazon, eBay stores, starting from £3.91.
The biggest discount we found is 27% on 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 at Amazon.
The lowest price we found is £3.91 while the highest is £46.00.
Prices for the best Diet Shakes deals average at £17.28.
Last updated on September 7, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Diet Shakes.