Prices updated daily — 23 October 2026
Product type overview
protein powder sits within Sports & Energy Drinks, part of Drinks. On this page you compare 178 products from 9 UK supermarkets: Aldi, ASDA, Co-op, Iceland, Morrisons, Ocado, Sainsbury's, Tesco and Waitrose. The lowest unit price for protein powder is £4.58/kg at Morrisons. In total, 7 variants of protein powder are compared (different pack sizes and compositions). All prices are normalised to the same unit (per kilogram, per litre or per piece) so that packs of different sizes can be compared fairly — a larger pack is not automatically the best value. The ranking below shows, per variant, which supermarket currently has the sharpest price, including own-label products alongside national brands. Prices refresh daily from the retailers' own public price lists, so you never see stale offers when planning your weekly shop. Allsupers uses no affiliate links or paid placement; the ranking is purely price-based and updated from public data.
Cheapest protein powder
Compare 174 products priced per kilo across 9 supermarkets (178 in total)
protein powder — compare prices across 9 supermarkets
Applied Nutrition
Applied Nutrition High Protein Tropical Smoothie Mix 600g
600 g
£4.58/kg
at 1 supermarket
Applied Nutrition
Applied Nutrition High Protein Berry Smoothie Mix 600g
600 g
£4.58/kg
at 1 supermarket
My Protein
Muller MyProtein Mixers Cookies & Cream Yogurt and Cookie Crunch 140g
140 g
£12.50/kg
at 1 supermarket
Optimum Nutrition
Optimum Nutrition Serious Mass Protein Powder Vanilla Flavour 8 servings 2.73kg
2.73 kg
£14.65/kg
at 1 supermarket
Optimum Nutrition
Optimum Nutrition Serious Mass Protein Powder, Chocolate Flavour, 8 servings, 2.73kg
2.7 kg
£14.81/kg
at 2 supermarkets
USN
USN Wholefood Chocolate Flavour Lean Gainer Nutrition Shake 2kg
2 kg
£15.00/kg
at 1 supermarket
USN
USN Vanilla Flavour Wholefood Gainer 2kg
2 kg
£15.00/kg
at 1 supermarket
Sci-MX
Sci-MX Nutrition Pro V Gain Vanilla Flavour 900g
900 g
£20.00/kg
at 1 supermarket
Pulsin
Pulsin Unflavoured Pea Protein Powder
1 kg
£20.00/kg
at 1 supermarket
SLIMFAST
SlimFast Protein Plus Fibre Raspberry Ripple Flavour 15 Servings 420g.
420 g
£21.43/kg
at 2 supermarkets
MyProtein
MyProtein Essential Whey Protein Chocolate Smooth Flavour 600g
600 g
£23.33/kg
at 1 supermarket
MyProtein
MyProtein Essential Whey Protein Vanilla Flavour 600g
600 g
£23.33/kg
at 1 supermarket
OPTIMUM NUTRITION
Optimum Nutrition Serious Mass Protein Powder Chocolate 1.34kg
1.34 kg
£23.88/kg
at 1 supermarket
PhD
PhD Diet Whey Powder Vanilla Creme
600 g
£25.00/kg
at 1 supermarket
MYPROTEIN
Myprotein Essential Shake, Chocolate Fudge, 600g
600 g
£25.00/kg
at 1 supermarket
MyProtein
MyProtein Impact Diet Whey Chocolate Brownie Flavour 1kg
1 kg
£26.00/kg
at 1 supermarket
MyProtein
MyProtein Impact Diet Whey Cookies and Cream Flavour 1kg
1 kg
£26.00/kg
at 1 supermarket
Sainsbury's
Sainsbury's Pro Fit Lean Vanilla Whey Powder 500g
500 g
£26.00/kg
at 1 supermarket
Precision Engineered
H&B Precision Engineered Plant Protein Powder Chocolate
840 g
£26.19/kg
at 1 supermarket
PBfit
PBfit Pure Peanut Powder - 9g Plant Based Protein and 82% Less Fat
680 g
£26.47/kg
at 1 supermarket
Myprotein
Myprotein Impact Diet Whey Chocolate Brownie Flavour 600g
600 g
£26.67/kg
at 1 supermarket
Myprotein
Myprotein Impact Diet Whey Cookies & Cream Flavour 600g
600 g
£26.67/kg
at 1 supermarket
Myprotein
Myprotein Essential Whey Protein Chocolate Smooth Flavour 300g
300 g
£26.67/kg
at 1 supermarket
Myprotein
Myprotein Essential Whey Protein Vanilla Flavour 300g
300 g
£26.67/kg
at 1 supermarket
Applied Nutrition
Applied Nutrition Salted Caramel Diet Protein 450g
450 g
£28.89/kg
at 1 supermarket
PhD
PhD Diet Whey Vanilla Crème Lean Protein Powder 1kg
1 kg
£29.97/kg
at 3 supermarkets
PhD
PhD Diet Whey Belgian Chocolate Flavour 1kg
1 kg
£29.97/kg
at 3 supermarkets
smart
PhD Smart Protein Plant Powder - Eton Mess 500g
500 g
£30.00/kg
at 1 supermarket
PhD Smart
PhD Smart Protein Plant Powder Chocolate Cookie 500g
500 g
£30.00/kg
at 4 supermarkets
MyVegan
MyVegan Impact Vegan Protein Chocolate Flavour 500g
500 g
£30.00/kg
at 2 supermarkets
MyVegan
MyVegan Impact Vegan Protein Vanilla Flavour 500g
500 g
£30.00/kg
at 1 supermarket
SCI-MX
SCI-MX Total Protein Powder - Chocolate 450g
450 g
£31.11/kg
at 1 supermarket
MaxiMuscle
MaxiMuscle Raw Max Whey Concentrate Protein Powder Vanilla Flavour
960 g
£31.25/kg
at 1 supermarket
PhD Smart
PhD Smart Protein Powder Salted Caramel 510g
510 g
£31.37/kg
at 2 supermarkets
Naturya
Naturya Organic Hemp Protein Powder
300 g
£32.00/kg
at 1 supermarket
Sainsbury's
Sainsbury's Pro Fit Strawberry Whey Protein Powder 500g
500 g
£32.00/kg
at 1 supermarket
Sainsbury's
Sainsbury's Pro Fit Banoffee Whey Protein Powder 500g
500 g
£32.00/kg
at 1 supermarket
Sainsbury's
Sainsbury's Pro Fit Choc Whey Protein Powder 500g
500 g
£32.00/kg
at 1 supermarket
SLIMFAST
Slimfast Clear Collagen Protein Tropical Twist Flavour 15 servings 375g
375 g
£32.00/kg
at 1 supermarket
MaxiMuscle
MaxiMuscle Progain Size Chocolate Flavour
1.2 kg
£33.32/kg
at 1 supermarket
MaxiMuscle
MaxiMuscle Size Progain Vanilla Flavour
1.2 kg
£33.32/kg
at 1 supermarket
Applied Nutrition
Applied Nutrition Diet Protein Powder Vanilla Ice Cream 450g
450 g
£33.33/kg
at 3 supermarkets
Applied Nutrition
Applied Nutrition Strawberry Milkshake Diet Protein 450g
450 g
£33.33/kg
at 2 supermarkets
Applied Nutrition
Applied Nutrition Diet Protein Powder Chocolate Dessert 450g
450 g
£33.33/kg
at 2 supermarkets
Vow Nutrition
VOW Nutrition Elite Whey - Chocolate Cookie
900 g
£33.33/kg
at 1 supermarket
Vow Nutrition
VOW Nutrition Elite Whey - Vanilla Ice Cream
900 g
£33.33/kg
at 1 supermarket
Myprotein
Myprotein Clear Collagen Protein Vimto Flavour 480g
480 g
£33.33/kg
at 1 supermarket
PHD Nutrition
PhD Smart Protein Powder - Chocolate Brownie 510g
510 g
£33.82/kg
at 2 supermarkets
PhD
PhD Diet Whey Lean Protein Powder Flavour Caramelised Biscuit 1kg
1 kg
£35.00/kg
at 1 supermarket
Precision Engineered
H&B Precision Engineered Whey Protein Powder Vanilla
900 g
£35.56/kg
at 1 supermarket