| 14 Products | May 2025 | May 2026 | Change |
| Optimum Nutrition Gold Standard 100% Plant-Based Vanilla Vegan Protein Powder Muscle Support & Repair (684g) | £24.82 | £25.00 | + £0.18 0.7% increase |
| | £17.00 | £17.00 | £0.00 No change |
| | £28.00 | £28.00 | £0.00 No change |
| | £28.00 | £28.00 | £0.00 No change |
| | £28.00 | £28.00 | £0.00 No change |
| | £28.00 | £25.00 | - £3.00 -2.3% decrease |
| | £19.90 | £24.00 | + £4.10 0.7% increase |
| Optimum Nutrition Gold Standard Pre-Workout Fruit Punch (330g) | £25.19 | £25.58 | + £0.39 1.5% increase |
| | £24.98 | £25.00 | + £0.02 0.1% increase |
| | £27.00 | £27.00 | £0.00 No change |
| | £27.00 | £27.00 | £0.00 No change |
| | £27.00 | £27.00 | £0.00 No change |
| | £19.95 | £21.89 | + £1.94 1.5% increase |
| Optimum Nutrition Whipped Protein Bar Chocolate Caramel Flavour (60g) | £2.62 | £2.56 | - £0.06 -2.3% decrease |
| | £2.48 | £2.25 | - £0.23 -9.3% decrease |
| | £2.75 | £2.75 | £0.00 -4.6% increase |
| | £2.50 | £2.50 | £0.00 -3.1% increase |
| | £2.75 | £2.75 | £0.00 -2.3% increase |
| Optimum Nutrition Chocolate Brownie Protein Crisp Bar (65g) | £2.29 | £2.29 | £0.00 No change |
| | £2.50 | £2.50 | £0.00 No change |
| | £1.90 | £1.90 | £0.00 No change |
| | £2.50 | £2.50 | £0.00 No change |
| | £2.25 | £2.25 | £0.00 No change |
| Optimum Nutrition Gold Bcaa Raspberry Pomegranate Supplement (266g) | £28.77 | £29.00 | + £0.23 0.8% increase |
| | £30.00 | £32.00 | + £2.00 6.7% increase |
| | £30.00 | £32.00 | + £2.00 6.7% increase |
| | £28.00 | £28.00 | £0.00 4.6% increase |
| | £27.06 | £23.99 | - £3.07 0.8% decrease |
| Optimum Nutrition Gold Standard 100% Whey Vanilla Ice Cream Whey Protein Powder (450g) | £18.33 | £20.67 | + £2.34 12.8% increase |
| | £19.00 | £22.00 | + £3.00 15.8% increase |
| | £21.00 | £22.00 | + £1.00 10% increase |
| | £14.99 | £18.00 | + £3.01 12.8% increase |
| Optimum Nutrition Protein Crisp Bar Peanut Butter Flavour (60g) | £1.78 | £1.78 | £0.00 No change |
| | £2.30 | £2.30 | £0.00 No change |
| | £1.25 | £1.25 | £0.00 No change |
| Optimum Nutrition Whipped Protein Bar Variety Pack (606g) | £22.48 | £22.48 | £0.00 No change |
| | £25.00 | £25.00 | £0.00 No change |
| | £19.95 | £19.95 | £0.00 No change |
| Optimum Nutrition Delicious Strawberry Whey Protein Powder (450g) | £17.74 | £20.00 | + £2.26 12.7% increase |
| | £19.00 | £22.00 | + £3.00 15.8% increase |
| | £16.47 | £18.00 | + £1.53 12.7% increase |
| Optimum Nutrition Gold Standard 100% Whey Double Rich Chocolate Protein Powder (465g) | £18.38 | £20.00 | + £1.62 8.8% increase |
| | £21.00 | £22.00 | + £1.00 4.8% increase |
| | £15.76 | £18.00 | + £2.24 8.8% increase |
