Optimum Nutrition Anmeldelser 

Paid for two large drums of ON Protein to be delivered to my London home address, then received email falsely stating that I requested delivery to an inconvenient pick up point of DHL’s choosing. No option for customer to change this either. Awful, inconvenient, customer service.

Won’t be buying from Optimum Nutrition again.

Ich bin vom Kundenservice von Optimum Nutrition sehr enttäuscht. Nachdem ich ein Produkt erhalten hatte, dessen Pulver teilweise stark verklumpt war, sich nicht mehr ordnungsgemäß dosieren ließ und zudem muffig schmeckte, musste ich es entsorgen.

Am 10. Oktober 2026 habe ich mich deshalb an den Kundenservice gewandt. Statt einer unkomplizierten und kundenorientierten Lösung begann eine unnötig langwierige Kommunikation. Obwohl ich die angeforderten Informationen bereits übermittelt hatte, musste ich diese erneut zusammenstellen und einreichen. Am 15. Oktober habe ich nochmals sämtliche Nachweise geschickt, darunter die Amazon-Bestellbestätigung sowie Fotos mit Chargennummer und Mindesthaltbarkeitsdatum.

Da ich bis dahin keine zufriedenstellende Lösung erhalten hatte, musste ich am 28. Oktober erneut nachhaken – ausdrücklich zum wiederholten Mal. Selbst am 29. Oktober hatte ich noch keine Sendungsverfolgungsnummer für den angekündigten Ersatz erhalten.

Was mich besonders enttäuscht, ist nicht nur der Produktmangel, sondern vor allem der Umgang mit meiner Reklamation. Ich habe alle erforderlichen Informationen wiederholt zur Verfügung gestellt und musste trotzdem mehrfach selbst aktiv werden, ohne dass die Angelegenheit zeitnah und transparent abgeschlossen wurde.

Ich hatte das Produkt bereits mehrfach gekauft und war zuvor mit der Qualität zufrieden. Umso enttäuschender ist diese Erfahrung. Von einem etablierten Hersteller erwarte ich, dass Reklamationen effizient bearbeitet, bereits vorliegende Informationen berücksichtigt und Kunden nicht zu wiederholten Nachfragen gezwungen werden.

Für mich ist das ein Beispiel dafür, wie mangelnder Kundenservice das Vertrauen in eine Marke nachhaltig beschädigen kann. Aufgrund dieser Erfahrung kann ich Optimum Nutrition derzeit nicht weiterempfehlen.

I have the worst experience with Optimum Nutrition Aribia i have ordered a protein and since than every day new WhatsApp number asking me for location and no body is delivering it to me i have also received calls to ask about the location and i have submitted a complaint but what they did again asked me about the location. Never again ordering from them and i dont suggest anyone to even if they have good offers, trust me pay little more money and get better service.

The item supplied (a massive 5kg bag of food protein powder) arrived completely defective and is entirely unfit for its purpose.
The product was explicitly advertised and sold as coming in a resealable bag, which is structurally required to store a 5kg quantity of food powder safely over several months. Upon delivery, the bag closure mechanism was entirely defective and does not seal. Without an airtight seal, the food product is exposed to ambient kitchen moisture and air, which will cause it to clump, spoil, and become a breeding ground for bacteria, rendering it completely unsafe to consume
I contacted them immediately to reject the item under the UK Consumer Rights Act 2015.
1. The merchant refused to provide a full refund or a pre-paid return, instead offering a completely inadequate 10% partial refund and advising me to use a "rubber band or clip" to secure a 5kg bag of food powder.
2. I formally declined this on 6th October 2026, pointing out that a rubber band cannot safely preserve a food product and that I am legally entitled to a full refund or replacement.
3. The merchant has since ignored and ghosted multiple follow-up emails sent on 7th October and 8th October.
4. When chased via Instagram on 8th October, the merchant used further stalling tactics, claiming they could not locate my email address in their system despite our ongoing chain.
As they have supplied defective food packaging that is unfit for purpose, refused my statutory consumer rights, and has now ceased credible communication, I am bypassing them to claw back my funds via my bank. Customer service will just ghost you!

Yeh same as everyone else on here really no assistance from them at all still not received my parcel, couriers blame optimum nutrition then they blame the couriers and I’m £85 down there should be better security on this sort of thing.

Ik had begin september een Optimum Nutrition Smartshake Reforce Steel Shaker gekocht. Helaas was de dop na een tijdje kapotgegaan en lekte de shaker daardoor. Ik heb contact opgenomen met de klantenservice en kreeg heel snel een reactie. Ze hebben zonder gedoe een vervangingsorder voor mij geregeld. Echt top service en heel netjes opgelost! Zeker tevreden over de manier waarop Optimum Nutrition met mijn probleem is omgegaan.

In assoluto, in 20 anni di esperienza nell’assunzione di proteine in polvere, queste sono le peggiori.
Prodotto di pessima qualità.
Mi riferisco alle Whey gold standard al cioccolato.
Immondizia
Evitate

Disappointed isn’t even the word. Ordered a bag of protein, which isn’t cheap, and it was delivered with its safety seal damaged. In turn the product not being safe to consume.

Support had been no help at all. The phone line redirects you to the online chat, the online chat always has no one available and prompts you to write a ticket, then your tickets get ignored.

At first I was told there was nothing they could do, but if I wanted to order a new bag they would give me a complimentary 15% off! LOL

Then, after more pushing, they agreed to send me a replacement…however that was nearly 2 weeks ago and now they have stopped replying to my messages. I have reached out to multiple different contact emails and I’m sat here with nothing…no reply, no help. Just ignored because I complained about a defected product.

Gold Standard Whey, Milk Chocolate - Quality product! Tip, just chug a plain chocolate flavour, forget about all of these silly flavours.

Okay, the price is definitely on the higher side, but at the end of the day, no one is forcing me to buy it!

The taste is unreal compared to the likes of MyProtein, especially when mixed with whole milk. If you’ve got a Hotel Chocolat Velvetiser (or something similar), use that to mix it — it comes out completely lump-free every time.

Damaged product, customer service stopped responding

I ordered a 4.53 kg bag of Gold Standard Whey directly from the official Optimum Nutrition website.

The bag arrived damaged and a significant amount of the protein had spilled out inside the package.

I contacted Optimum Nutrition and their customer service asked me to provide photos of the outer packaging, shipping label and damaged product. I sent all requested photos on 10 September.

Since then I have followed up several times, including on 11 September and 14 September, but I have received no response or confirmation that my complaint is being processed.

The product itself may be good, but this is extremely disappointing customer service, especially when the company has already received photographic evidence of the damaged product.

Order: ON439602

I wish better service was provided for this product!
The product itself is good. However, awful costumer service and unfair pricing policy makes me to choose other brands.

Awful company. Not only have they gone so expensive but they don't honour their deals. I bought creatine and the website said there was a free shaker with it. Shaker never arrived. Their woeful customer service said the deal wasn't valid even tho they advertised it. They are best avoided.

After using Optimum´s nutrition whey protein for years, it has come to a point that in September of 2026 the price has gone through the roof! 109€ for 2.26kg, 3 months ago it was 80-90€. Thank you Optimum, it has been a pleasure but I will switch to some other product with a better price.

I am using their serious mass and I got very good results

Terrible customer service. They sent the wrong product, then asked for pictures, then asked to return the product. Then they stopped responding to emails until I contacted my bank for a refund. No apology, no acknowledgment of the mistake.

Je ne peux mettre qu'une etoile quand
Votre propre site internet optimum nutrition a des informations completements fausses sur la composition des poudres proteinées, à savoir votre site informe des valeurs erronées sur le taux de sel
Le taux de sucre
La quantitée de bcaa etc etc par exemple la whey gold standard vanilla ice cream a surement été reformulé et en
Aucun cas vous ne le mentionnez sur votre site jai donc reçu un pot de 2,28kilos avec pas du tout la même composition que celle annoncée sur votre site en photo et en description j'ai donc reçu une proteine avec 3fois plus de sel, plus de sucre et moins de bcaa donc on ne peux pas acheter en toute confiance sur votre site avec des valeurs nutritives erronées franchement pour un site "specialisé" en complement alimentaire c'est quand même lamentable..je n'ai d'ailleur jamais vu ça..3 fois plus de sel c'est pas mal quand même!!

I placed an order through the official website after seeing a promotion that was displayed. My payment was accepted, so I believed the order had been successfully placed. Later, I received an email saying the order had been cancelled because the promotion was due to a "technical error."
I understand that mistakes can happen, but as a customer I acted in good faith based on the information shown on the website. I contacted customer support and politely asked if they could honour the order or at least offer a goodwill discount or voucher. Unfortunately, my request was declined.
While I did receive a full refund, I was disappointed by how the situation was handled. I had specifically chosen to buy from the official Optimum Nutrition website because I trusted the brand. I expected a better customer experience and some effort to resolve the issue.
I hope Optimum Nutrition improves how it handles situations like this in the future, as customer trust is very important.

Wanted to order a flavoured creatine but somehow a unflavoured order was created and delivered. Asked them to replace immediately they rejected inspite of the fact I gave another order for flavoured one. Customer service here sucks please do not order

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.

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 multiple times I have not had one response! I will now be forced to make a claim via my credit card company. UPDATE, 2 days after posting my original review customer service finally emailed back and sent a replacement bag of protein. Its such a shame, the product is good but customer service really needs to improve