Best Supplement Brands in the UK (2025)
With hundreds of supplement brands competing for your money, choosing the right one matters. We have compared the four most popular brands in the UK across quality, price, range and transparency to help you decide.
MyProtein
Founded: 2004, Manchester
Pros
Cheapest protein per serving, massive range, frequent sales (40-60% off), great app
Cons
Quality perception lower than premium brands, some products over-flavoured
Best For
Budget-conscious buyers who want variety
Bulk (formerly BulkPowders)
Founded: 2006, Colchester
Pros
Clean formulations, transparent labelling, good value, strong pre-workout range
Cons
Smaller product range than MyProtein, fewer sales
Best For
Intermediate lifters wanting quality without premium prices
Optimum Nutrition
Founded: 1986, USA
Pros
Gold standard whey is the benchmark, consistent quality, great taste, widely available
Cons
More expensive per serving, less variety in flavours, fewer UK-specific deals
Best For
Those who want a proven, reliable product and do not mind paying more
NOW Foods
Founded: 1968, USA
Pros
Excellent for vitamins, minerals and health supplements, GMP certified, affordable
Cons
Limited sports nutrition range, less focus on protein powders
Best For
General health supplements, vitamins and natural products
How We Compared
We evaluated each brand on five criteria: price per serving of their flagship protein powder, ingredient transparency (do they list exact amounts?), third-party testing, product range, and customer reviews. All prices were checked during non-sale periods to give a fair comparison. MyProtein wins on price, Optimum Nutrition wins on consistency, Bulk offers the best middle ground, and NOW Foods dominates for general health supplements.