Prices updated daily — 1 June 2026
Product type overview
protein powder sits within Baking Ingredients, part of Bread & Bakery. On this page you compare 5 products from 6 UK supermarkets: Tesco, Sainsbury's, ASDA, Aldi, Morrisons and Waitrose. The lowest unit price for protein powder is £28.89/kg at ASDA. In total, 1 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 5 products across 6 supermarkets
protein powder — compare prices across 6 supermarkets

Applied Nutrition
Applied Nutrition Diet Protein Chocolate Dessert 450g
450 g
£28.89/kg
at 1 supermarket

PhD Smart
PhD Smart Protein Plant Powder Eton Mess 500g
500 g
£30.00/kg
at 1 supermarket

Pulsin
Pulsin Complete Vegan Protein Blend Choc Hazelnut Flavour
250 g
£51.96/kg
at 1 supermarket

Optimum Nutrition
Optimum Nutrition Clear Protein Powder, 100% Plant Protein Isolate, Lime Sorbet Flavour, 10 servings, 280g
280 g
£89.29/kg
at 1 supermarket

Optimum Nutrition
Optimum Nutrition Clear Protein Powder, 100% Plant Protein Isolate, Juicy Peach Flavour, 10 servings, 280g
280 g
£89.29/kg
at 1 supermarket