Optimum Nutrition UK Reviews 

130
TrustScore 4 out of 5

4.0

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Review summary

Created with AI, based on recent reviews

Considering 124 reviews, reviewers had a great experience with this company. Consumers frequently praise the wonderful taste, smooth mixability, and high overall quality of the various protein powders available on the market today. Many buyers note that shopping through the online platform is simple and convenient, while their shipments consistently arrive quickly and securely to their homes. Some reviewers were not happy with unexpected delivery delays, missing shipments, or packages being sent to completely incorrect addresses. Additionally, a small group of people experienced frustrating difficulties dealing with unhelpful customer support teams and faulty product packaging that failed to seal properly.

What people talk about most

Product

Customers had positive experiences with product, noting that it tastes great and mixes very well without any... See more

Quality

Consumers find quality to be positive, regularly highlighting the smooth taste, creamy texture, and fantastic... See more

Delivery service

Users describe positive interactions with delivery_service, noting that orders often arrive ahead of schedule... See more

Order

Customers consistently note ambiguous experiences with order processes, reflecting a wide range of outcomes.... See more

Customer service

Reviewers mention ambiguous feedback about customer service, reflecting a wide range of differing... See more

Reviews shaping this summary

Rated 4 out of 5 stars

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

Company replied

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

  1. Vitamin & Supplements Shop
  2. Fitness and nutrition
  3. Sports Nutrition Shop

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.


Contact info

4.0

Great

TrustScore 4 out of 5

130 reviews

5-star
4-star
3-star
2-star
1-star

No recent history of asking for reviews

This company hasn't invited customers recently, so reviews may not be representative

Replied to 90% of negative reviews

Typically replies within 2 weeks

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

4.0

All reviews

(130)

130 reviews in the last 12 months

Write a review
Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Performance Nutrition and recovery

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 go anywhere else. Been using their products for years and have always got great results with superior recovery. Would definitely recommend if your health, wellbeing, body and recovery are your goals.

6 February 2026
Unprompted review
Rated 5 out of 5 stars

So impressed with this company.

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 delivery slot, super impressive.

3 February 2026
Unprompted review
Rated 5 out of 5 stars

Superior quality products !!!

I use products from this company for a while now and it has never failed the expectations. High quality products delivering a great result if combined with consistent and disciplined training.
Definitely would recommend to anyone who values quality and wants to achieve great results !!!

27 January 2026
Unprompted review
Rated 2 out of 5 stars

Package seal doesn't work

I bought the 4.5kg of whey protein so I can have it for a long time, and although the protein itself is of great quality (absolutely the best), the packaging just doesn't seal properly.
I tried it in all possible ways, but it's just faulty and will not stick no matter what. It's a pity, because now I have to use other ways to close it and it's definitely not air-tight. You should review your production line because something is not working well.

30 January 2026
Unprompted review
Optimum Nutrition UK logo

Reply from Optimum Nutrition UK

Hello Andre,

Thank you for letting us know, and I’m really sorry you’ve had to deal with this.

We completely understand the situation, and we really appreciate you taking the time to point it out. We’ll make sure your feedback is passed on to the right team so we can work on improving this moving forward.

If there’s anything else you need, we’re here to help. Wishing you a lovely day ahead!

Rated 1 out of 5 stars

My order hasn't arrived

My order hasn't arrived, I ordered it a week ago!

26 January 2026
Unprompted review
Optimum Nutrition UK logo

Reply from Optimum Nutrition UK

Hi Samuel,

Thank you for reaching out to us, and apologize for the inconvenience.

Unfortunately, it looks like your package was returned to us, since the delivery was not successful. A refund has been processed for you.

​Thank you for your understanding. You can of course place a new order, and we're here to assist you further.

Rated 2 out of 5 stars

Recommended but electric blue colouring unecerssary!

The product was recommended for its benefits and effectiveness but I have to say why on earth do they need to put an electric blue colouring in it? Adding silly colourings for no benefit? Don’t think I can use it as it contains this which I had no idea about when I purchased.

1 February 2026
Unprompted review
Optimum Nutrition UK logo

Reply from Optimum Nutrition UK

Hello Nicholas,

Thank you for your message, and we’re really sorry for the inconvenience.

We completely understand your concern and we will definitely escalate your feedback to the relevant team.

To make sure we pass this on accurately, could you please confirm which specific product this is regarding?

You can reach out to our customer support team via email, and we’ll make sure your feedback is properly reviewed.

Wishing you a wonderful day ahead!

Rated 5 out of 5 stars

Fast Delivery, Great Taste & Long Expiry

Ordered Optimum Nutrition on the evening of Friday 23 January and was really impressed with the speed — shipped on Monday and delivered on Tuesday.

The tub arrived completely sealed and intact, with a great expiry date (almost 2 years). I ordered the Extreme Milk Chocolate flavour: there’s a very slight sweetener taste, but nothing overpowering, and the overall chocolate flavour is actually really good. Mixes well and goes down easily.

Very happy with both the product and the service — would definitely order again.

27 January 2026
Unprompted review
Rated 1 out of 5 stars

Horrible Delivery Service and customer support

My order, which was scheduled for delivery on Thursday, 22/01/2026, has still not reached me. I would like to highlight the issues I have faced so far:
Thursday:
I was informed that the courier could not deliver my order as “no one was present.” This is incorrect. I live in a student accommodation with a 24/7 reception, and no delivery attempt was made. I also did not receive any call from the delivery agent. I was then notified that my parcel had been redirected to a collection point nearly 50 minutes away from my address. After calling customer support, I was told the parcel would be redelivered on Monday.
Monday:
I waited for the parcel, but instead received another notification asking me to collect it. When I contacted customer support, the call was disconnected after a long wait. I called again, and after another delay I was informed that the delivery driver had not picked up my parcel for redelivery on Monday. I was assured the matter would be escalated and the parcel would arrive on Tuesday (27/01/2026). However, today I received the same collection email once again after which i called the courier again and they said the goods are now being returned to sender.

I tried Optimum nutritions help desk number but the automated voice told me that they have suspended calls and i should email them. I have sent but 2 emails and i have not gotten any response on their end whatsoever.

This experience has caused significant inconvenience and highlights major issues with communication, delivery accuracy, and customer support. I request that this matter be investigated urgently and that my parcel be delivered to my address as originally scheduled.

27 January 2026
Unprompted review
Optimum Nutrition UK logo

Reply from Optimum Nutrition UK

Hello,

Thank you for taking the time to share your experience, and I’m truly sorry for the delay and the frustration this situation has caused.

I also want to apologise for the delay in our response. Your emails were not ignored; our team has been actively working in the background to resolve this and has already escalated the issue with the logistics company. According to the latest update, your parcel is expected to be delivered today.

If, for any reason, the delivery still doesn’t happen, please rest assured that you will not lose your money. We can request the parcel to be returned to us and will be more than happy to arrange either a replacement or a full refund — whichever works best for you.

We genuinely appreciate your patience, and we’re committed to making sure this is resolved properly for you. If you need anything else, we’re here to help.

Rated 1 out of 5 stars

Avoid

Parcel still in Birmingham. Have asked for a refund for a week. Customer service now just ignoring me. Don’t want the product anymore. Shocking service.

1 January 2026
Unprompted review
Optimum Nutrition UK logo

Reply from Optimum Nutrition UK

Hello Ryan,

I’m really sorry to read about your experience — no one should have to chase a refund for a week or feel ignored.

We’ve checked your order, and unfortunately the parcel couldn’t be delivered and was returned to us by the courier. As soon as it arrived back, a full refund was issued (19th of January), so you should already have received your money back.

If anything still looks unclear on your end or you need further support, we’re absolutely here for you and ready to help.

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look