Updated October 1, 2026 · ThriveCue Editorial Team
Myprotein vs Optimum Nutrition
Myprotein vs Optimum Nutrition: the differences
| Compare |  Myprotein | Optimum Nutrition ReviewSee alternativesSee alternatives |
|---|---|---|
| Price from | £32.99 | €17.99 |
| Price per serving | £1.10 | €1.66 |
| Protein per serving (g) | 22 to 23 | 24Higher |
| Third-party tested | YesHas it | No |
| Certifications | Informed sport | Nsf |
| Flavours (flavours) | 40Higher | 15 |
| Markets | GB, AL, AD, GI, GP, GG, IS, JE, LI, MK, MQ, MD, ME, SM, CH, AO, AR, BD, BO, BW, BF, KH, CL, CO, CR, CI, EC, EG, GH, HK, IL, JP, JO, KZ, KE, KR, KG, MY, MU, MC, MA, NP, NG, PK, PA, PH, RE, RW, PM, SN, SG, ZA, LK, TW, TZ, TT, TN, UG, UY, UZ | AU, AT, BE, HR, DK, EE, FI, FR, DE, GR, IE, JP, LV, LT, MT, MC, NL, NZ, PT, SK, SI, KR, ES, SE, CH, GB, US |
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Key differences
- Optimum Nutrition scores higher overall: 9.3 vs 9.2.
- Protein per serving (g) is higher at Optimum Nutrition: 24 vs 22 to 23.
- Third-party tested: only Myprotein.
- Flavours (flavours) is higher at Myprotein: 40 vs 15.
- Certifications: only Myprotein offers Informed sport.
- Certifications: only Optimum Nutrition offers Nsf.
- Founded is lower at Optimum Nutrition: 1986 vs 2004.
- Myprotein is available in 33 more countries.
- Products: only Myprotein offers Meal replacement.
- Markets: only Myprotein offers AL, AD, GI.
Our verdict on each
Myprotein
Myprotein suits anyone stacking protein into a routine across a wide catalogue at a low cost per scoop. Its Impact Whey range sells at £1.10 per serving with 22 to 23 g of protein, and delivery reaches GB, AL and AD.
Optimum Nutrition
Optimum Nutrition suits buyers who want one store for protein, creatine and pre-workout rather than piecing a routine together brand by brand. Its Gold Standard whey protein starts at €17.99 and works out at €1.66 a serving, which keeps the cost side strong for regulars.
Score breakdown
| Area | Myprotein | Optimum Nutrition |
|---|---|---|
| Cost | 9.2Price per serving sits at £1.10, ranking 10 of 46 brands compared. | 9.3HigherEntry price of €17.99 is among the lowest tracked, and €1.66 a serving keeps the running cost competitive for reorders. |
| Offer | 9.5HigherThe catalogue runs to whey protein, plant protein and creatine types, with 40 flavours on the Impact Whey range. | 9.0The catalogue spans whey protein, plant protein and creatine, and the flagship whey powder alone comes in 15 flavours. |
| Trust | 8.7The Impact Whey range is Informed Sport certified and third-party tested, run by THG Nutrition Limited. | 10.0HigherNSF certification is named for the range, and the store trades as Glanbia Performance Nutrition Limited from IE. |
By the numbers
| Fact | Myprotein | Optimum Nutrition |
|---|---|---|
| Protein per serving (g) | 22 to 23 | 24 |
| Flavours (flavours) | 40 | 15 |
Where each is licensed and available
| Country | Myprotein | Optimum Nutrition |
|---|---|---|
| Headquarters | United Kingdom | Ireland |
Available in 5 countries for both. Additional countries for Myprotein: 55. Additional countries for Optimum Nutrition: 22.
Sources behind this comparison
Myprotein
- myprotein.com: 12 facts, checked September 30, 2026
Optimum Nutrition
- optimumnutrition.com: 12 facts, checked September 30, 2026
How they place
| Ranking | Myprotein | Optimum Nutrition |
|---|---|---|
| Vitamins and multivitamins | 19 of 362 | 244 of 362 |
| Gut health, greens and collagen | 20 of 172 | 94 of 172 |
| Protein powders | 9 of 111 | 72 of 111 |
| Creatine, pre-workout and electrolytes | 10 of 93 | 57 of 93 |
Every fact side by side
| Fact | Myprotein | Optimum Nutrition |
|---|---|---|
| Products | Whey protein, Plant protein, Creatine, Pre workout, Electrolytes, Meal replacement, Protein bars, Mass gainerCovers more | Whey protein, Plant protein, Creatine, Pre workout, Electrolytes, Mass gainer, Protein bars |
| Legal entity | THG Nutrition Limited | Glanbia Performance Nutrition Limited |
| Headquarters | United Kingdom | Ireland |
| Founded | 2004 | 1986Lower |
| Support channels | Email, Phone, Chat, Help centre | Email, Chat, Phone, Help centre |
Supplements
| Fact | Myprotein | Optimum Nutrition |
|---|---|---|
| Diets | Vegan, Vegetarian, Gluten free | Not confirmed |
| Money-back period | 30 daysHigher | 14 days |
Where each stands against the rest
| Fact | Myprotein | Optimum Nutrition | Median |
|---|---|---|---|
| Protein per serving (g) | 22 to 23at the median | 24above the median | 23 |
| Flavours (flavours) | 40highest quarter | 15highest quarter | 4.5 |
Median across 52 listed brands.
Pros and cons
Myprotein
Pros
- Price per serving of £1.10 puts it at 10 of 46 brands on cost per scoop, the strongest ranking in the set.
- The catalogue covers whey protein, plant protein and creatine, so creatine, pre-workout, electrolytes and meal replacement sit in the same basket as protein.
- The Impact Whey range carries 40 flavours, which cuts the odds of a repeat order going to waste.
Cons
- Entry price of £32.99 ranks 44 of 66 brands, so the headline figure is not the cheapest on the market.
- The range is certified to Informed Sport only, with no organic or GMP certification listed, while 24.8% of brands compared carry organic.
- Protein per serving of 22 to 23 g sits just under the 24 median across protein powder brands.
Optimum Nutrition
Pros
- A serving of the Gold Standard whey protein delivers 24 g of protein for €1.66, a workable number for daily use.
- The range covers whey protein, plant protein and creatine, so protein, creatine and pre-workout all come from one store.
- Delivery reaches AU, AT and BE, and support runs on email, chat and phone.
Cons
- Third-party tested is listed as no, so the only named check on the range is nsf certification.
- Per-serving cost ranks 22 of 46, mid-table rather than a standout among the brands compared.
- The catalogue covers whey protein, plant protein and creatine and stops short of meal replacement, which Body Attack lists under whey protein, plant protein and creatine.
Who each suits
Myprotein
Who it suits
- Lifters and everyday gym users who want a low cost per scoop and many flavours to choose from
- Vegan, vegetarian and gluten-free shoppers who want protein and creatine in the same order
- Anyone based in one of the GB, AL and AD listed delivery markets
Who should look elsewhere
- HUM Nutrition shoppers who only want plant protein and creatine in a small range
- Myvitamins shoppers looking for a vitamins and minerals range alongside performance products
- Body Attack shoppers who want the lowest entry price on a whey tub
Optimum Nutrition
Who it suits
- Buyers who want whey, plant protein, creatine and pre-workout under one roof: whey protein, plant protein and creatine.
- Shoppers who prefer a named certification to an unstated one, since nsf is listed.
- People who reorder often and weigh €1.66 a serving above the €17.99 entry price.
Who should look elsewhere
- Plant-only buyers should look at HUM Nutrition, whose listed range is plant protein and creatine and leaves out whey.
- Shoppers who want a performance-only shelf can compare Myvitamins, listed as whey protein, creatine and electrolytes with no plant protein or bars.
- Anyone after meal replacement alongside protein should weigh Body Attack, whose list whey protein, plant protein and creatine adds that category.
Current offers
Optimum Nutrition
Current offer
Discount code
15% off first order with newsletter signup: 15% off first order
Sign up for the Optimum Nutrition newsletter, confirm the email, then apply the code in the cart; first order only, not stackable with other promotions, bundles or combi-deals
Source, checked September 30, 2026
Country by country
| Country | Myprotein | Optimum Nutrition |
|---|---|---|
| Albania | Yes | No |
| Andorra | Yes | No |
| Angola | Yes | No |
| Argentina | Yes | No |
| Australia | No | Yes |
| Austria | No | Yes |
| Bangladesh | Yes | No |
| Belgium | No | Yes |
8 of 82 countries where either is available.
Questions about each
Myprotein
How much does Myprotein protein cost per serving?+
The Impact Whey range works out at £1.10 per serving, and each serving carries 22 to 23 g of protein. On cost per scoop that places Myprotein at 10 of 46 brands compared, which is the figure to watch if you order regularly.
Is the entry price on Myprotein the cheapest?+
The range starts at £32.99, and on that headline figure Myprotein ranks 44 of 66 brands compared. Cheaper entry prices exist in this category, so the first order is not where Myprotein leads. Its strength is the per serving cost that follows.
Optimum Nutrition
How much does the Gold Standard whey protein cost?+
The Gold Standard whey protein starts at €17.99 for an order. Once you have it, the same powder works out at €1.66 a serving, and that is the figure that decides a monthly spend. Weigh the two together, because a modest entry price only pays off if the per-serving cost holds up over a month of daily shakes.
How much protein is in one serving?+
One serving of the Gold Standard whey protein supplies 24 g of protein. That is a mid-range load rather than the highest on the shelf, so chasing a bigger number per scoop would mean looking elsewhere. For most people it is enough to cover a daily target alongside ordinary meals.