CHEAPEST
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4.4kg
Meal Replacement
Cheapest Meal Replacement Shakes UK
Every meal replacement shake we track, ranked by cost per 25g of protein. Complete meal and diet shakes from Huel, Protein Works, PER4M, Myprotein and more, every price read from the retailer's own page.
a scoop£1.92Bulk3.6×the price, same 25g of protein
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HIGHEST PROTEIN %
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490g
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975g
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540g - 585g · 2 sizes
Size
480g
Browse All Meal Replacement Products (18)
About Meal Replacement Protein
Meal replacement shakes are built to stand in for a meal rather than top up protein. Alongside protein they carry carbohydrate, fibre, fats and added vitamins and minerals, so they contain less protein per 100g than a standard protein powder.
We rank them by cost per 25g of protein, the same measure we use for every powder on WheyWise, so you can compare them fairly with each other and with regular protein. Calories per serving vary a lot between products, from lighter diet shakes around 200 to 250 kcal to full 400 kcal meals, so check the serving against the meal you want to replace.
For a calorie-controlled diet, the lighter diet shakes are usually the better fit. For a full meal on the go, look at the 400 kcal complete meals.
Further reading
Shop by goal
Pick a target, see the shortlist.
Brand battles
Two brands, one clear winner.
MyproteinBulk
The UK's two biggest DTC brands, head-to-head
ONMyprotein
Premium global vs budget UK favourite
MyproteinProtein Works
Impact Whey vs Whey 80, cheapest per 25g
Power users
Advanced comparison: every product, filteredDense table view with every product, full filter sidebar, and no editorial surfaces.
Methodology
How we rank every bag.
Independent and transparent. Every price is read from the retailer's own page and checked daily. Here's what goes into each score.
01
Cost normalised to £/25g
Every bag divided by its true protein weight, so you see the real cost of a scoop across any size or brand.
02
Protein density, measured
Protein per 100g from the product's own nutrition panel, so a 90% isolate and a 72% concentrate are never compared on bag price alone.
03
Real prices, checked daily
Prices come from the retailer's own listing, never an RRP, and we re-check them every day rather than leaving a feed to drift.
04
No sponsored placements
Rank order is cost per 25g of protein. Some outbound links earn commission; none of them buy a position in the table.
Questions, answered.
A protein shake is mostly protein. A meal replacement shake adds carbohydrate, fibre, fats and vitamins and minerals so it can stand in for a meal. That is why meal replacements contain less protein per 100g, and why they usually cost more per 25g of protein than a plain protein powder.
Diet meal replacement shakes are usually around 200 to 250 kcal per serving, while complete meal shakes such as Huel Powder give around 400 kcal. Choose the one that matches the meal you are replacing and your daily calorie target.
On a one-off order, Protein Works Complete Meal 360 Gold is slightly cheaper per meal than Huel Powder, with the same 400 kcal and 30g of protein per meal. Our Protein Works vs Huel guide compares them in detail.