Just bought the new clear protein (incentivised by the free creatine). Good change from whey with a nice clean taste. Originally looking to buy Gold Standard but at nearly £100 a tub that was a no go.... See more
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I don’t usually leave reviews. However, from someone who has constant gut issues, this is the only whey I’ve found (so far) which is the easiest on my stomach. Even whey isolate from USN etc hits my s... See more
Super fast delivery, next day now! Products are great, lots of choices and flavours to choose from. From a leading nutrition and performance brand, I wouldn’t expect anything else, that’s why I don’t... See more
Great flavour, mixes well without leaving any lumps like some other brands. I find that going a little bit bigger on the scoop size adds to the consistency and flavour. Morning after a heavy sessio... See more
Company details
Written by the company
Optimum Nutrition. Setting the Gold Standard in Sports Nutrition. For more than 35 years, Optimum Nutrition has been dedicated to providing athletes, fitness enthusiasts, and active individuals with the highest quality sports nutrition products in the world. Recognised globally as The World’s #1 Sports Nutrition Brand, Optimum Nutrition is trusted by millions of customers who strive every day to achieve their health and fitness goals. Our philosophy is simple: quality you can trust, products you can rely on, and results that help you perform at your best. From our state-of-the-art production facilities, we control every stage of the manufacturing process — from sourcing premium raw ingredients to rigorous quality testing — ensuring that every product meets our uncompromising standards. Best known for Gold Standard 100% Whey, the world’s best-selling whey protein powder, we also offer a wide range of products to support performance, recovery, endurance, and everyday wellbeing. Whether it’s protein powders, pre-workouts, creatine, or vitamins and minerals, each supplement is formulated with science, innovation, and the needs of active people at the forefront. At Optimum Nutrition, we are proud to support both professional athletes and everyday consumers. Our mission is to empower everyone to unlock their potential through safe, effective, and great-tasting nutrition. We continually invest in research, education, and innovation to ensure we remain at the forefront of sports nutrition. When you choose Optimum Nutrition, you choose the Gold Standard in quality, trust, and performance.
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4.0
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124 reviews
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I paid it said dispatched and nothing…
I paid it said dispatched and nothing arrived.
May 4, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hello Ian,
Thank you for taking the time to leave your feedback, and I’m truly sorry to hear about your experience with the delivery.
I’ve checked our records and can see that you already reached out to our customer service team, and a resolution has been provided. I’m glad you were able to get support, and we sincerely apologize for the inconvenience you faced along the way.
We're always here to help:)
Great whey protein
I bought strawberry flavor and i’d say best whey you can get in both terms of quality and taste
April 16, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hello Mohsen,
Thank you so much for you kind words.
We are truly happy to hear, that you had a positive experience with us:)
Really good taste double chocolat whey…
Really good taste double chocolat whey protein powder
May 1, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi Kilian,
Thank you so much for your feedback. We're glad to hear that you are enjoying the product.
We hope to see you soon:)
I have not receive the product or the…
I have not receive the product or the refund
April 21, 2026
Unprompted review
Best tasting protein powder
I’ve tried a few different protein powders but this is without doubt the best tasting one, might be a little bit pricey but more than makes up for it with the unreal taste, Delivery was super quick as well, will definitely be using these from now on.
April 24, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hello Wayne,
Thank you for your wonderful feedback. We're really glad to hear, that you had a positive experience with us.
Wishing you all the best, and we hope to see you back soon:)
I didn’t receive the product and can’t…
I didn’t receive the product and can’t contact ON at all. Tried several times, trough phone calls, email, instagram, can’t manage to get a reply.
Had to open a regou d request with my bank!
The tracking id provided for DPD is an old id, to a delivery done in Nov-25. My order was placed in 08 April-26. DPD said there is nothing they can do.
I haven’t had an update since the first email confirming the order.
Had to buy the same product from Amazon to manage to get the product, it arrived the same day.
Now I’m waiting on the bank analysis to get my money back, with all evidence provided that I’ve tried contact with ON multiple times.
April 8, 2026
Unprompted review
The product and ON service was good but…
The product and ON service was good but the delivery wasn’t the best. The 2 protein tubs were simply put in a cardboard box with no protection. They arrived squashed and dented but luckily there was no leakages
April 15, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hello Vimal,
Thank you for sharing your feedback.
We’ll escalate this to our logistics partner so they can review the packaging process and prevent this from happening again.
If something like this ever happens or if you need assistance with a damaged item, please don’t hesitate to reach out directly to our customer support team. They’re here to help you quickly whenever an issue arises.
Reply from Optimum Nutrition UK
Hi Montis,
Thank you for your wonderful feedback. We're so glad you enjoy the products.
See you soon:)
I didn't receive my order still
April 17, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hello,
Thank you for reaching out and we’re really sorry to hear about this.
We’ve checked the tracking on our side, and it does show that the package has already been delivered. If you’re experiencing any issues or if the parcel hasn’t reached you, could you please get in touch with our customer support team? They’ll be able to look into this further and help resolve it quickly.
We’re here to support you every step of the way.
Damaged pack
Hi - thanks for the delivery on time . But the parcel I got is damaged and protein pack is torn - with protein contaminated as got contact with air. Could u please look into it.
Thanks
April 12, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hello Mohit,
We’re really sorry to hear that your parcel arrived damaged.
We’re happy to see that you’ve already been in touch with our customer support team and that a brand‑new replacement order has been arranged for you as agreed. We hope this quickly puts things right and that you enjoy your products once they arrive.
If there’s anything else you need, we’re always here to help.
Good products and timely delivery
March 25, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi Cosette,
Thank you for sharing your lovely feedback with us.
We're always here to support you.
Love this protein powder so nice mixed…
Love this protein powder so nice mixed with Greek yogurt especially Strawberry!
April 11, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hello Pablo,
That's so wonderful to hear.
We truly appreciate your feedback:)
Reply from Optimum Nutrition UK
Hi Arvin,
Thank you for your feedback, and we're glad to hear about your positive experience with us:)
Poor product quality, Shaker Bottle logos came off affter two handwashes in cold water...Spend your money elsewhere. Tried to support them as a brand but don't bother.
Bought a couple of their shaker bottles. After a couple of cold hand washes (not dishwasher), the logos on the side started coming off. Should've just bought no brand versions and saved me 80% of what I spent. If I had known their products were of such poor quality, I could've spent much less on generic no-brand shaker bottles. Tried to support them as a brand but that's my fault...
When they finally did get back to me, they said they couldn't help me because i didn't purchase from their website and asked me to contact their third party complaints team to provide them with all these details?!
-Place of purchase
-Date of purchase
-Product name
-Batch number and time stamp (preferably photo of the batch)
-Expiration date
-Summary of complaint
-Photo of the complaint
It's a lot of work to justify why their bottle is poorly made. So in short, no I won't be spending more time chasing nothing and just won't be purchasing from them again.
Spend your hard earned money elsewhere.
April 7, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi Drew,
We’re really sorry to hear about your experience — that’s genuinely frustrating, and we completely understand why you’re disappointed.
Regarding the support process: because the purchase wasn’t made through our website, we’re required to follow a specific procedure so our quality team can properly investigate. We know it can feel like a lot to provide, and we’re sorry it came across as extra work on your end.
Your feedback is absolutely valid, and we’ll use it to improve both our product quality and the way we handle cases like this.
Wishing you a wonderful day ahead.
Very bad!
Very bad!! The protein powder was all over the box and the packaging of the product was compromised
April 4, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hello Niranjan,
We’re really sorry to hear about your experience — this absolutely shouldn’t happen. We can see that you’ve already reached out to our customer support team, and one of our agents has provided a resolution for you. We truly hope this helps and that we can offer you a much better experience next time.
Thank you for bringing this to our attention.
Fantastic always have a deal on product…
Fantastic always have a deal on product is great.Ive been training over 35yrs and this product is as good as it gets.
many thanks, Spencer
April 2, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hello Spencer,
Thank you so much for your lovely feedback:)
We're happy to hear that we are a part of your journey.
Reply from Optimum Nutrition UK
Hello,
Thank you so much for your kind feedback. We're happy to hear that you had a positive experience with us.
Wishing you a wonderful day.
Fast delivery and clear tracking 📦
Fast delivery, proper tracking updates, well packaged, everything arrived as expected.
March 26, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi Abe,
Thank you for your feedback. We are happy to hear that everything arrived as expected, and we hope that you enjoy your products:)
Have a lovely day ahead.
Reply from Optimum Nutrition UK
Hi Kadzz,
Thank you so much for your feedback-we truly appreciate it.
Wishing you a lovely day ahead:)
great love this
March 1, 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi Bi sa,
Thank you so much for your kind words. We're glad to hear that you had a positive experience with us!
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