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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Review summary
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Delivery was next day an products are outstanding. The only protein I’ve been able to digest within 10-15 minutes of training window without digestion issues. Would highly recommend this product for... See more
I’ve been using this product for years but first time I’ve ordered direct from the manufacturer. I am so impressed. The price was great. Next day delivery was fantastic with an hour allotted deliver... See more
Can't fault the product, nor the service. Prompt delivery and an issue resolved quickly, without fuss and to a level of service that made me take note - in a good way. Won't hesitate to buy direct... See more
Company details
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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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3.9
Great
223 reviews
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Best Protein Powder
I’ve tried numerous protein powders and without a doubt Optimum Nutrition Double Chocolate is the best tasting out there,only downside is it’s a little expensive.
15 September 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi Wayne,
We're so happy you love the taste of our Double Chocolate protein! We appreciate your feedback regarding the cost and are always working to offer the best value.
Price has risen way to much to be viable
Way to expensive have used for years but now due to expense I have had to transferred to another brand which is unfortunate as I loved the 5kg whey
11 September 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi PJ,
Thank you for your loyalty over the years:)
Your feedback is incredibly valuable, and we'll be sure to pass your comments on to the relevant team. We hope you'll keep an eye on our promotions and offers, and that we'll have the opportunity to welcome you back in the future.
Wishing you all the best, and thank you again for your years of support.
Expedite delivery and secure packaging…
Expedite delivery and secure packaging thankyou, product quality is five star.
15 September 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi Abubakar,
We're so glad to hear you're happy with the speedy delivery, secure packaging, and product quality!
Shippinfmg delivery didnt happen as per…
Shippinfmg delivery didnt happen as per the policy. It was late.
Package was damaged by the time I received
7 September 2026
Reply from Optimum Nutrition UK
Hi Pavan,
Thank you for your feedback, and we sincerely apologize for the issues you experienced.
We will escalate your feedback regarding both the delivery experience and the condition of the package to the relevant teams for review. That said, we're glad to understand that the products themselves arrived intact and were not affected by the damage to the outer packaging.
Thank you for bringing this to our attention:)
Issue Resolved – Optimum Nutrition Made It Right
I am updating my original 1-star review following a positive resolution from Optimum Nutrition.
My order originally arrived with the Gold Standard Whey Protein damaged, with the seal broken and the powder spilled throughout the shipping box. The initial handling of my complaint was frustrating, particularly as I had provided photographs and requested an escalation but did not receive a resolution for around two weeks.
However, Optimum Nutrition has now contacted me and arranged a replacement for the faulty product.
I appreciate that they ultimately took responsibility and made the effort to resolve the issue properly. Problems can happen with any company, but what matters is how they deal with them. Arranging the replacement was the right thing to do and has restored my confidence in the company.
For that reason, I have decided to change my review from 1 star to 5 stars. Thank you to the Optimum Nutrition team for eventually resolving the matter and making things right.
29 August 2026
Reply from Optimum Nutrition UK
Hi Nima,
Thank you for your feedback, and we sincerely apologize for the frustration caused.
We're sorry for the delay in responding to your case. We can see that our Customer Support team has since been in contact with you and has offered a resolution regarding the damaged product you received.
Thank you for your patience while the matter was being reviewed, and we apologize again for the inconvenience caused.
I haven’t received my package yet
I haven’t received my package yet. Please use other delivery services other than DPD.
7 September 2026
Reply from Optimum Nutrition UK
Hi Ambarish,
Thank you for your feedback, and we're very sorry for the delay with your delivery.
We will make sure your feedback about DPD is shared with the relevant team for review.
We're pleased to see that your package has now been successfully received, and we hope you're enjoying your products.
Reply from Optimum Nutrition UK
Hi AP,
We're so glad you enjoyed the products! Thank you for your wonderful feedback and support.
Fast shipping to Greece,and it was…
Fast shipping to Greece,and it was unbelievable how peanut butter protein powder could fit in a protein powder,and off course the quality of optimum nutrition
1 September 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi Dimitris,
We're so glad to hear you enjoyed the fast shipping and were pleasantly surprised by the peanut butter protein powder's quality!
We appreciate your positive feedback.
Reply from Optimum Nutrition UK
Hi,
Your support means a lot to us, and we're grateful that you took the time to share your feedback.
Reply from Optimum Nutrition UK
Hi David,
Your support means a lot to us, and we're grateful that you took the time to share your feedback.
Protein powder was like watered down…
Protein powder was like watered down hot chocolate
4 September 2026
Reply from Optimum Nutrition UK
Hi David,
Thank you for your feedback.
If the shake tasted too thin or watery, we would suggest trying it with less liquid than recommended, as this can help create a thicker and richer texture. You can also experiment with adjusting the amount of water or milk to suit your personal preference.
If you would like further advice on preparation or believe there may be an issue with the product, please don't hesitate to reach out to our Customer Support team, and we'll be happy to assist.
Been waiting a week for my product
Been waiting a week for my product
Not replying to my emails, unable to get hold of DPD couriers
1 September 2026
Reply from Optimum Nutrition UK
Hi David,
Thank you for your feedback. We're sorry to hear about the difficulty you've experienced getting updates on your order.
We're pleased to see that you've been in contact with our Customer Support team. An investigation has been opened with our logistics partner so that we can determine what has happened with the delivery and provide the appropriate resolution.
Please rest assured that our team is actively monitoring the case and will continue working to resolve this matter for you as quickly as possible.
Reply from Optimum Nutrition UK
Hi,
Thank you for your kind words and wonderful feedback - we truly appreciate it:)
Your support means the world to us, and we're absolutely here for you whenever you need us!
A Priced out loyal customer
Been a customer for over 20 years - brilliant product BUT... SO far out pricewise now. Why can I obtain this in Holland for £73 per 2kg pack and in the UK it is an incredible and unsatisfactory £98!? Such a sad former customer....
10 September 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi Chi,
Thank you for your loyalty over the past 20 years.
We understand your feedback, and apologize for this matter. Pricing can be influenced by a range of factors, which may result in different prices across regions.
We truly value your feedback and will share your comments with the relevant team.
Thank you again for taking the time to share your experience:)
£150 product damaged and not safe to…
£150 product damaged and not safe to consume, ignored by support, live chat doesn’t work.
offered 15% off if i order a replacement 😂
EDIT: I replied to their email two days ago and they never replied so just shows they have made up a reply on here to save face.
3 September 2026
Reply from Optimum Nutrition UK
Hi Daniel,
Thank you for sharing your feedback.
The damage shown in the photo you previously provided is extremely unusual, and because this concerns a consumable product, it should be examined by our Quality Team. To allow us to investigate properly and resolve the issue, we previously offered to arrange a return label so that the product could be returned, inspected, and refunded.
At this time, we have not yet received confirmation from you that you would like to proceed with the return process. If you wish to move forward, please contact our Customer Support Team and we will be happy to provide the return label and assist further.
We remain committed to resolving the matter as quickly as possible once we receive confirmation that you would like to proceed with the return.
Reply from Optimum Nutrition UK
Hi Camron,
Thank you for your kind words and wonderful feedback - we truly appreciate it:)
Your support means the world to us, and we're absolutely here for you whenever you need us!
Taste is great
Taste is great, simply great (double choc); no digestion issues at all; good pack design
2 September 2026
Reply from Optimum Nutrition UK
Hi Max,
Thank you for your kind words and wonderful feedback - we truly appreciate it:)
Your support means the world to us, and we're absolutely here for you whenever you need us!
My order has still not arrived
My order has still not arrived. The tracking links do not work and the email I sent to ask/ clarify where it is has not been answered.
29 August 2026
Reply from Optimum Nutrition UK
Hello A.W,
Thank you for your message, and we're truly sorry for the inconvenience.
We're pleased to see that you have now been in contact with our Customer Support team. Our agents are currently assisting you and will work with you to resolve this matter as quickly as possible.
We apologize for the delay in communication and appreciate your patience while the issue is being reviewed.
Great products and always very fast delivery
Great products and always very fast delivery. I order the ON monthly 👍🏻👍🏻👍🏻💪🏼💪🏼💪🏼
24 August 2026
Unprompted review
Reply from Optimum Nutrition UK
Hi Ryan,
Thank you for your kind words and wonderful feedback - we truly appreciate it:)
Your support means the world to us, and we're absolutely here for you whenever you need us!
Doesn’t get any better quality or…
Doesn’t get any better quality or service, heavy on the emails though, had to unsubscribe within a couple days I had a bunch of emails, a reminder would’ve done say 30 or 60 days after receiving my nutrient's. Otherwise buy with confidence been using optimum nutrition for a while, if I wanna cut in or bulk or maintain they do the job perfectly
1 September 2026
Reply from Optimum Nutrition UK
Hi FJM,
Thank you for your kind words and wonderful feedback - we truly appreciate it:)
Your support means the world to us, and we're absolutely here for you whenever you need us!
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