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Popular from Optimum Nutrition
All productsAt Optimum Nutrition you get a discount by entering a discount code at checkout. Tested on 5 October 2026 by our editors.
One of the most compared brands on Fit Discounts. We collect Optimum Nutrition products from different shops and put them side by side honestly, so you never pay too much.
Prices and codes checked on by the editorial team. We check the codes daily; if a code stops working, we remove it right away.
| # | Product | Price | Price per serving | Rating | Last measured |
|---|---|---|---|---|---|
| 1 | Optimum Nutrition Gold Standard 100% Whey | £24.00 · 300 g | ≈ £2.40 / serving £80.00 / kg | 4,9/5 (2190) | |
| 2 | Optimum Nutrition Gold Standard 100% Whey Protein Powder | £40.00 · 600 g | ≈ £2.00 / serving £66.67 / kg | 4,9/5 (2190) | |
| 3 | Optimum Nutrition Gold Standard 100% Whey Protein Powder Double Rich | £32.00 · 465 g | ≈ £2.06 / serving £68.82 / kg | 4,9/5 (2190) | |
| 4 | Optimum Nutrition Gold Standard 100% Whey Protein Powder | £98.00 · 2,27 kg | ≈ £1.30 / serving £43.17 / kg | 4,9/5 (2190) | |
| 5 | Optimum Nutrition Gold Standard 100% Whey Protein Powder | £98.00 · 2,28 kg | ≈ £1.29 / serving £42.98 / kg | 4,9/5 (2190) | |
| 6 | Optimum Nutrition Gold Standard 100% Whey Protein Powder | £170.00 · 4,53 kg | ≈ £1.13 / serving £37.53 / kg | 4,9/5 (2190) | |
| 7 | Optimum Nutrition Gold Standard 100% Whey Protein Powder Double Rich | £98.00 · 2,26 kg | ≈ £1.30 / serving £43.36 / kg | 4,9/5 (2190) | |
| 8 | Optimum Nutrition Gold Standard 100% Whey Protein Powder | £98.00 · 2,27 kg | ≈ £1.30 / serving £43.17 / kg | 4,9/5 (2190) |
Prices checked on 5 October 2026 — discounts are already included in the price per unit. ≈ = calculated with the standard serving of the category (e.g. 30 g protein, 5 g creatine).
Optimum Nutrition is not the cheapest per kilo in any of the 2 categories below; the table shows the gap to the cheapest shop. Price per kilo, discounts included, same selection as on our price pages.
| Category | Cheapest at Optimum Nutrition | Cheapest in the UK | Difference | Rank Optimum Nutrition |
|---|---|---|---|---|
| Creatine monohydraat | Micronised Creatine Powder Blue — £61.11 / kg | Bulk — £35.98 / kg | +70% | #4 of 5 shops |
| Pre-workout | Platinum Pre-workout Powder — £71.43 / kg | Applied Nutrition — £0.57 / kg | +12432% | #3 of 3 shops |
Compared on the cheapest variant per shop; the full lists are on the linked price pages and update automatically.
Copy the code above, go to the Optimum Nutrition webshop and paste the code into the discount code field at checkout. The discount is then applied automatically.
Yes, we check the codes regularly (see the date at the top of the page). Does a code no longer work? Try another one from the list; we replace expired offers as soon as possible.
Regularly, especially around sale periods. Save this page and you will always have the current Optimum Nutrition codes at hand.
Usually not; often only one code works per order. So pick the code with the highest discount for your order.
Combine an active discount code with the sharpest-priced products. We compare the Optimum Nutrition products per shop, so you get the lowest price and the discount.
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