Best Protein Powder Under £30 UK

If your budget is £30, you have more good options than you might think. This page shows every protein powder we track whose cheapest in-stock tub comes in at or under £30, ranked by the metric that actually decides value: cost per 25g of real protein. A cheap tub is not a bargain if it is mostly filler, so the ranking normalises price against protein content rather than headline price alone.

At this budget you are mostly looking at whey concentrate in 1kg sizes from the big UK brands, plus the occasional smaller isolate or vegan tub when a sale lands. Use the filters to narrow by brand, size or protein type, and check live discount status before you buy: a £32 tub on a 20% code often beats a £29 one at full price.

Prices are checked weekly across UK retailers including Myprotein, Bulk, Amazon UK, Holland and Barrett and Protein Works. The product at the top is the best value under £30 right now, recalculated every time prices move.