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

Last Updated - 23/08/2025 Sort By:

Best Choice
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

£10.98
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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

£11.18
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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
Best Value
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

£19.00 £26.00
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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
22% 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

£35.05 £45.00
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15% Off
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

£19.19 £22.78
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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
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

£19.99 £21.99
New
21x Meal Replacement Diet Shake Bundle (Chocolate, Vanilla, Banana, Strawberry)
Important: Do not use if of poor health, breast feeding, pregnant or under 16. Consult a GP before starting any diet pla

£43.75
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

£5.59
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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

£27.40
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New
CWP The 1:1 Diet 21 x Shakes

£46.00
Almased

New
Almased Almond-Vanilla Meal Replacement Shake - Protein Powder for Weight Loss, 500 g
Healthy effective weight loss sustainable results supported by over 35 years of scientific research

£25.49
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New
Fast Weight Loss!Slimming Diet Shakes plus Fat Burner Plus Chocolate and Vanilla
These even burn fat effectively even while you sleep.

£18.99
13% Off

New
SlimFast Ready to Drink Shake 18-Pack Multiple Flavours
One shake replaces one meal

£28.48 £33.00
New
Sealions Diet Meal Replacement Shakes 450g Slim Weight Loss Protein Powder
If you're looking for products to help you smash through your training goals, we've got what you need. The majority of p

£9.99
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
New
30 SlimFast Mix Meal Replacement Powder Shakes Box Sachets Pack Weight Loss Diet
Please note BEST BEFORE DATE. THIS IS THE REASON THR ITEM IS HALF PRICE. I may take the item from the sleeve to reduce p

£18.53
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
Meal Replacement 1.1KG Shakes Slim Weight Loss Whey Protein Diet 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

£13.99
New
Slim Fast Shake Powder Weight Loss Diet Drink Sporting Protein Meal All Flavours
MULTIVITAMIN AND MINERAL POWERHOUSE: 23 vitamins and minerals (incl. ).

£10.60
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
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
New
10x Banana Diet Shake for Weight Loss | 20+ Vitamins and Minerals
Important: Do not use if of poor health, breast feeding, pregnant or under 16. Consult a GP before starting any diet pla

£22.30

25 Diet Shakes deals are available from: Amazon, eBay stores, starting from £5.59.
The biggest discount we found is 26% 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 £5.59 while the highest is £46.00.
Prices for the best Diet Shakes deals average at £20.22.
Last updated on August 23, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Diet Shakes.