Optimum Nutrition Reviews 

179
TrustScore 2 out of 5

1.9

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

See what reviewers are saying

Rated 1 out of 5 stars

I order 2 * 5kg bags of protein and one of them arrived damaged with a large split down the side of the bag spilling the contents into the delivery box. After 3 weeks of emailing ON customer services... See more

Rated 5 out of 5 stars

I have been ordering from ON since Jan 2026 since Amazon is restricting the amounts. This time when I ordered, UPS lost a case, I filed a claim with UPS, but was frustrated after not being able to re... See more

Rated 1 out of 5 stars

I've ordered one 5kg bag of protein powder, and after almost two weeks it hasn't arrived. I've sent an email as well with no response so far.

Rated 1 out of 5 stars

Company which pushed their product through subscription which cant be canceled. When you try it this message "Your subscription contract is frozen by your shop owner." interrupt the process. Highly re... See more

Company details

  1. Beauty & Well-being

Information provided by various external sources

Optimum Nutrition: Creators of 100% Whey Protein (The Worlds #1 Protein Powder), Pro Complex, Diet Products, Strength and Recovery Supplements, and other health and nutrition products.


Contact info

1.9

Poor

TrustScore 2 out of 5

179 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 8% of negative reviews

Typically replies within 1 week

How this company uses Trustpilot

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

1.9

All reviews

(179)

30 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 1 out of 5 stars

Please use an alternative. Don't be tricked

Just wanted to update you on the poor service from both Optimum Nutrition and their courier service. Basically, they use Evri, which is a very poor courier service. I ordered on the 14th, delivery was delayed by Evri (not a surprise) and noted on 18th November. No update or delivery whatsoever. I email Optimum Nutrition on 22nd November asking for an update. They mention that basically the only thing they can do is open a postal investigation and it will take up to 7 working dates (10 more days waiting for my order). I ask for a refund and they have refused until their investigation with their courier is completed, so basically, nothing happens, I didn't receive anything and I have to wait to get my own money back. Please order from Myprotein or another store that is reliable and really gives great service. The only reason why I came here is that Myprotein were out of stock. These guys are just lads trying to run a poor business.

November 24, 2022
Unprompted review
Optimum Nutrition logo

Reply from Optimum Nutrition

We are sorry for the time it has taken to respond to your review. We recently gained access to this platform and now in an effort to help our customers we are replying as fast as we can.

I am sorry to hear that your experience with us was a poor one. In the rare event that a postal investigation is needed we do have to wait for this investigation to be closed so that we can locate the missing parcel. Once this has been completed with the courier we then look to resolve this for you as best as we can.

If you require anymore aid here, please let me know and I will be more than happy to aid you. You can email us at: customersupport@optimumnutrition.com

-Emma, Customer Support Representative.

Rated 1 out of 5 stars

I'm giving 1 star as you cooperate on…

I'm giving 1 star as you cooperate on Amazon with the fitness scammer Patryk Baranski who scamms and cheats people on diet plans. You can do more research about him just google Patryk2703 Trustpilot reviews

October 30, 2022
Unprompted review
Optimum Nutrition logo

Reply from Optimum Nutrition

We are sorry for the time it has taken to respond to your review. We recently gained access to this platform and now in an effort to help our customers we are replying as fast as we can.

I have included a link for you here to our official ambassadors. https://www.optimumnutrition.com/en-gb/athletes

Please let me know if you need anymore help, we will be happy to aid you.

Rated 1 out of 5 stars

Package is stuck in transit with…

Package is stuck in transit with courier EVRI. No one is interested in helping out. Optimum Nutrition customer service is nonexistent. (Don't answer the phone)
EVRI customer service number is a premium number £6 plus phone company access charge.
Taking my business elsewhere

October 8, 2022
Unprompted review
Rated 1 out of 5 stars

Shocking delivery times

Ordered my items over a week ago, still no delivery or any update on when this will be. They use Evri for deliveries, shocking service.

October 8, 2022
Unprompted review
Rated 1 out of 5 stars

I have used optimum nutrition for years…

I have used optimum nutrition for years and used to get great results from the serious mass and now I don’t use it anymore since they updated their formula in 2020 I really can’t stomach the new formula it tastes so bad and artificial and the old serious mass formula used to taste great now the flavours are horrendous I'm not sure what has happened but I don’t understand why they changed there flavours when they worked so well for years without any problems. If you can remember the old flavours then you know what I mean. I’m very disappointed with why they have done this and now have gone with a different brand until they decide to go back to their original formula I won’t be using it again it’s just not the supplements it used to be.

October 7, 2022
Unprompted review
Rated 5 out of 5 stars

Superb customer service (Shan)

I placed an order a week ago and the protein bag had a whole and the powder was spilled. I wroteto their customer service and the respone and support i received from Shan was so professional.
I was offered a full refund or a replacement and I've gladly chosen a new bag as a replacement.
Thank you Shan. Thank you ON.
Will return and shop from your website again for sure.

September 29, 2022
Unprompted review
Optimum Nutrition logo

Reply from Optimum Nutrition

Thank you kindly for taking the time to leave this review. I am happy that one of our agents helped you.

We strive for the best customer service so I will be sure to pass this feedback over.

Emma- Customer Service Representative.

Rated 1 out of 5 stars

Unprofessional, scumbag company full of liars

Do not order this powder directly from the website. They lie about the time that it takes to ship. I ordered the extreme milk chocolate on the 13th, i selected 3-5 business days and these guys still have said it's "in transit".

They make decent protein powder I can't lie, it probably is the best bang for your buck so I will give them 1 star for that.

August 22, 2022
Unprompted review
Rated 5 out of 5 stars

Damage product sorted straight away

Always loved the double rich chocolate but I ordered the largest size which has gone up a fair amount but in these times it’s understandable.

Once received I was disappointed to see a rip in the bag and a fair amount had fallen out so I emailed their customer service expecting a voucher or a smaller one sent out but was surprised when they offered to send out a new one of the same size and they replied to an emailed with around 30 minutes apologising and getting it sorted straight away. Obviously this was not the fault of optimum nutrition but the carrier but the service was second to none.

Fantastic service from Katie and a very happy customer

August 10, 2022
Unprompted review
Rated 1 out of 5 stars

Absolutely dreadful customer service…

Absolutely dreadful customer service and delivery service. The product was meant to be delivered by 16th July and still not delivered. I asked the delivery company they replied we have returned the product back to the sender. Now I am at their portal waiting from day to get hold of them.

July 25, 2022
Unprompted review
Rated 1 out of 5 stars

Poor customer service - illness

Received a bad-batch product which was inedible. Provided feedback to customer team and filled in the details to test the batch no. Received patronising customer service and no solution. For such a big brand, that I have enjoyed the product of for a while, it seems weird to lose customers over poor customer service, as is the theme of these other reviews!!

July 12, 2022
Unprompted review
Rated 1 out of 5 stars

They delete reviews. Only show 5 stars.

Few months ago ordered gold standard protein milk chocolate flavour. Box was damaged and lost my free protein bars but that's fine. After few weeks of investigation they offered some discount for next purchase which never take place. The bad thing is the taste is not nice and I have reflux after drinking it. I was trying to leave review on their site where there is 1600+ and it's 5 stars average. Only few 4 stars. Haven't seen any less. I wrote review with 2 stars but unfortunately they didn't published. They just deleted. They only show good things and hide the bad ones.

July 1, 2022
Unprompted review
Rated 1 out of 5 stars

The currie company they use have failed…

The currie company they use have failed to deliver my order for over a week, their customer service is the worst I have ever experienced, have been nothing but polite but yet have had the phone put down on me several times, I have since bought the products ordered of a different manufacturer and dealing with Optimum Nutrition has been nothing but a waste of time and to date a waste of money, thankfully I have purchased via PayPal so a dispute has been raised through their support

June 29, 2022
Unprompted review
Rated 1 out of 5 stars

Misleading website

Misleading website.

Homepage banner is offering the strength and size bulk for €79.99, but when attempting to make a purchase price jumps to €95.20.
I was really close to placing an order without noticing the price difference and probably plenty of other customers too. Some might have ordered and paid over €15 extra without knowing.

I contacted customer service via Facebook, it’s been over two weeks and I have yet to receive a response.

Extremely disappointing.

June 15, 2022
Unprompted review
Rated 1 out of 5 stars

I bought Optimum Mass gainer

I bought Optimum Mass gainer, The powder leaves half of the cup as a foam and i cant swollow that so half of the powder is wasted each time. I contacted customer service with order number they refused to exchange they said to contact the retailer. The retailer says to contact manufacture just disappointed :(

May 9, 2022
Unprompted review
Rated 1 out of 5 stars

Worst customer service

Was ordering for long time. But last time are worst. Parcel disappeared. Customer service not answering. USELESS! Waist of money. Optimum Nutrition production in UK are FAKE!

April 13, 2022
Unprompted review

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