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

Last Updated - 17/12/2025 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

£20.00 £26.00
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

£18.00 £26.00
New
SLIMFAST SHAKE POWDER 16 SERVINGS for Balanced Diet Plan All flavours
Each shake is ⚖️ SlimFast 3.2.1 Plan.

£11.27
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

£10.49 £11.00
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
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

£9.97 £11.00
Premium Body Nutrition

New
Meal Replacement Banana
PBN Meal Replacement Banana 2.4kg Tub

£19.52 £21.20
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
13% Off
Premium Body Nutrition

New
Meal Replacement Banana
PBN Meal Replacement Banana 2.4kg Tub

£18.54 £21.20
New
Serious 4.4KG Go Lean Diet Whey Protein Powder Shake Fat Loss & Lean Mass Gainer
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
19% Off
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

£10.49 £12.90
23% Off
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

£9.97 £12.90
New
Slimfast Powder Chocolate 1.825Kg Weight Loss Diet Meal Replacement
Lose Weight and Keep It Off* Packed with everything you need for a tasty, balanced meal, our shakes can help you lose we

£29.75
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
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
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

£10.62 £11.18
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
CWP The 1:1 Diet 21 x Shakes

£45.00
New
SlimFast Meal Replacement Shake for Weight Loss & Balanced Diet 16 Servings 584g
1x SlimFast Shake Powder Tub. 🧘 SlimFast 3.2.1. Plan (Optional Guide) 16 servings per tub (584g total). 16 servings (58

£12.99
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
New
SlimFast Meal Replacement Shake for Weight Loss & Balanced Diet 16 Servings 584g
Looking for an easy and effective way to manage or lose weight?. SlimFast 3.2.1 Plan 3 Snacks: SlimFast snacks or fruit/

£11.85
New
Meal Replacement Shake Diet Protein Powder 450g Healthy Weight Loss Cafe Latte
Rich and creamy milkshake flavours. Cafe Latte Flavour. This product should be used as part of an energy-restricted diet

£8.99
New
Meal Replacement Shakes 450g Diet Whey Protein Powder Weight Loss Banana
This product should be used as part of an energy-restricted diet. It is important to maintain an adequate daily fluid in

£8.99
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

£20.99
New
1ne Nutrition Lean 2.25kg - Diet Shakes Protein Ultralean Shake Meal Replacement
When you have provided this information we will investigate the problem and try to resolve it as quickly as we can. Add

£34.99

25 Diet Shakes deals are available from: Amazon, eBay stores, starting from £8.99.
The biggest discount we found is 31% 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 £8.99 while the highest is £45.00.
Prices for the best Diet Shakes deals average at £18.18.
Last updated on December 17, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Diet Shakes.