Optimum Nutrition Reviews 

180
TrustScore 2 out of 5

1.9

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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

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

Rated 1 out of 5 stars

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 o... 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

180 reviews

5-star
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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

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1.9

All reviews

(180)

30 reviews in the last 12 months

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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
Rated 1 out of 5 stars

Ordered from them for the 1st time

Ordered from them for the 1st time. Expected to receive the package within 5 days. It has been nearly a month since ordering and nothing has come. The logistics company has lost the package in transit and Optimum Nutrition were opening an 'investigation' which would take 10 days. Still nothing back from them. I got in contact requesting a refund but they seem to be ignoring me now. What's the point in running an e-commerce business if this is the experience you're giving customers.

Update: ON continued to ignore my emails for a refund so had to go through my bank to raise a dispute. Thankfully Lloyds fronted the loss and paid directly into my account within 1 hour.

March 30, 2022
Unprompted review
Rated 4 out of 5 stars

Excellent

Excellent! I love ON. The only problem is that sometimes delivery can be slow, otherwise they're priced fairly and does the job over other brands

November 25, 2021
Unprompted review
Rated 1 out of 5 stars

Tampered products

Have been a loyal customer for many years. Recently just had two products delivered. First product was glutamine powder, this one had the silver foil seal removed on the inside of the tub and had leaked all over the box and other product. I emailed customer services about this and my worry about how the product could be contaminated. Their response was that it’s normal for the seal to be off! Which is ridiculous because I have never experienced in the last 15years. No refund offered!

The second product was they gold standard whey. I had ordered a chocolate mint flavour, the label said chocolate mint however when I opened the tub up it was a white vanilla powder. Explained this to customer services and they only offered me a refund on this product. In order to get the refund I have to return the product first which isn’t straight forward because it needs to be in a box which I don’t have, need to spend more money to get my money back. The batch number also looks like it’s been tampered with.

The customer service has been so poor and disgraceful for a company of this size, would recommend never using them. I sure won’t be

November 14, 2021
Unprompted review
Rated 1 out of 5 stars

AVOID buying direct from ON

Bought the ON 50g protein shake from a local supplier on the UK, they are the biz, although watch out, when you shake the bottle it builds up a lot of pressure and the milk sprays everywhere when you open it, like a coke bottle but sticky milk.

Decided to go direct to on site, avoid using the ON site as they didn't package the purchase correctly and then after the bottles were damaged during transit, the courier left the package 50metres down the drive, clearly avoiding me rejecting the parcel.

Box was soaking and milk all the way up the drive, rang ON and emailed them, the customer service team are useless. Told them to collect the remaining damaged bottles and they refused. Offered by a credit note, what's a joke.

If you can, buy the product locally and watch out for the pressure spray when you open the bottle.

August 30, 2021
Unprompted review
Rated 1 out of 5 stars

Be aware of their adds

Be aware of their adds. They may be misleading. I receive an add about having an extrat product if I buy a big product. I didnt receive any of what they promised on their add. I tried to reach them on the chat nobody is replying, it's been almost 2 weeks. Andwhen they reply. They said that they know that it's their mistake but they wont send anything. Just like that.

June 29, 2021
Unprompted review
Rated 5 out of 5 stars

No complaints

No complaints. Ordered milk chocolate and french vanilla whey powders. Got a 15% discount as well. Arrived within a week.

January 4, 2021
Unprompted review
Rated 1 out of 5 stars

Found a peice of rubber in my tub!

Having purchased this product from amazon I was adviced to contact ON in regards to quality issues. Having done this they had no concerns and said I should deal with it with amazon! Even though they are the manufacturing company, I wasn't asked a batch number to make sure no one else has this issue. It could be a choking hazard! I was told to complain to amazon ( sending me in a loop) When I pointed this out I was blindly given another email address asking me to send complaints to that address with no supporting information about what this company was or why I should email them. Bringing this up they said it was the " parent company". Absolutely useless it's a different story if I was complaining about something trivia like the taste.

Used to he a reputable company but now use their products at your own risk.

November 13, 2020
Unprompted review
Rated 2 out of 5 stars

ON T Shirt drastically reduced in quality

Ordered the ON T-Shirt. This product has gone from a high quality cotton to an actual Fruit of the Loom T Shirt (based on the label) which, costs £1 RRP. The ON logo is of poor quality too. The ordering and delivery process was excellent but overall really shocked that ON have decided to reduce the quality of one their own products.

October 20, 2020
Unprompted review
Rated 5 out of 5 stars

Use their Creatine Monohydrate and…

Use their Creatine Monohydrate and Serious Mass when bulking, great products that always deliver, never a problem with delivery or quality of products.

Would always recommend Optimum Nutrition to anyone interested in working out, they’re the best of the best.

August 12, 2020
Unprompted review
Rated 5 out of 5 stars

Good product

Very happy with my recent online order. Purchase went very smoothly and I received my order in a reasonable amount of time, given the COVID situation. The product itself (Gold Standard whey protein) is excellent. I tried it for the first time and it was really good, if not the best I've had so far. Optimum Nutrition also gives good discounts. Highly recommended.

August 3, 2020
Unprompted review

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