Optimum Nutrition UK Reviews 

132
TrustScore 4 out of 5

4.0

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Review summary

Created with AI, based on recent reviews

Evaluating 126 reviews, reviewers had a great experience with this company. Customers frequently praise the exceptional protein powders for their wonderful flavors, smooth texture, and outstanding overall effectiveness in supporting daily fitness and training routines. People also enthusiastically appreciate the super fast delivery service, noting that orders consistently arrive securely and ahead of schedule. Some reviewers were not happy with delivery issues, such as missing parcels, tracking delays, or couriers leaving packages in completely insecure locations. Consumers additionally noted some frustrating challenges regarding unresponsive customer support, faulty packaging seals, and occasional difficulties with incorrect address handling during the online checkout process.

What people talk about most

Product

Consumers find product to be positive, frequently praising the great taste, excellent mixability, and high... See more

Quality

People report positive experiences with quality, consistently highlighting high manufacturing standards and... See more

Delivery service

Users describe positive interactions with delivery_service, noting that orders consistently arrive quickly,... See more

Order

Customers had ambiguous experiences with order processes, reflecting a strong split in sentiment. Many... See more

Customer service

Customers consistently note ambiguous experiences with customer service, revealing stark contrasts in... 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

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

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


Company details

  1. Vitamin and Supplements Store
  2. Fitness and Nutrition Service
  3. Sports Nutrition Store

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

132 reviews

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4.0

All reviews

(132)

132 reviews in the last 12 months

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Rated 1 out of 5 stars

Horrible

Horrible, never got my package, cant reach out and doesnt answer on Facebook, will n’y on Amazon next time

13 November 2025
Unprompted review
Optimum Nutrition UK logo

Reply from Optimum Nutrition UK

We’re very sorry to hear about your experience and understand how frustrating it is when a package doesn’t arrive and you feel unable to reach us.

Please be assured that our customer service team is happy to look into your case and support you. We kindly ask you to contact us directly via our official support channel and include your order number so we can investigate the issue as quickly as possible.

We sincerely apologize for the inconvenience and would appreciate the opportunity to resolve this matter for you.

Kind regards

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