• Free Delivery, on orders over £99

    Free Delivery

    on orders over £99
    (Restrictions apply) 

  • Buy Now Pay Later, options available

    Buy Now, Pay Later

    options available

  • Interest Free, finance options

    Interest Free

    finance options

  • Free Installation, on all products

    Free Installation

    on selected products

  • 8 Stores Nationwide, with large showrooms

    9 Stores Nationwide

    with large showrooms

  • Largest UK Showroom, Northampton

    Largest UK Showroom

    Northampton

Fitness Superstore | UK

OPEN 7 DAYS A WEEK | SHOP ONLINE 24/7

01604 673 000

Phone lines:

9am-8pm (Mon – Fri) Evening Sales 6-8pm

9am-6pm (Sat) | 11am-4pm (Sun)

OPEN 7 DAYS A WEEK | SHOP ONLINE 24/7

01604 673000

Phone lines:

9am-9pm (Mon – Fri)

9am-6pm (Sat) | 11am-4pm (Sun)

OPEN 7 DAYS A WEEK | CALL ON 01604673000

About Optimum Nutrition

Seamlessly merging premium quality products with affordability, Optimum Nutrition provides you with a varied range of high standard sports nutrition to choose from. The sole sports nutrition company to offer items in every product category, we are pleased to offer a large selection of their top quality products. The range available at Fitness Superstore includes muscle-building protein supplements – including the 100% Whey Gold Standard – and energy formulas including weight loss and weight gain supplements.

Optimum Nutrition (ON) was established in 1986 to cater to the demand for sports nutrition of a consistent high standard. Known for their innovation, the brand was the first to produce a casein protein powder to the market. They have continued to lead the way in the industry with their Gold Standard 100% Whey protein supplements, the world’s best-selling whey protein.