Optimum Nutrition Fitness range
Optimum Nutrition Fitness range

Optimum Nutrition

From the beginning in 1986, ON has taken a hands-on approach to maintaining the very highest standards of quality with strict ingredients selection, quality control, lab testing and manufacturing processes with products awarded the Informed Sports certification.

  • Optimum Nutrition Whey Protein
     

    Whey Protein

    Known for its high-quality protein content, to support muscle growth and recovery. A reliable and effective source of protein.

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  • Optimum Nutrition Plant Protein
     

    Plant Proteins

    Expertly blended, plant-based protein supplements designed for individuals seeking a vegan or vegetarian protein source.

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  • Optimum Nutrition Pre-Workout Advanced
     

    Pre-Workout

    Enhance your workout performance with pre-workout. Designed to provide a boost of energy, focus, and endurance before exercise.

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Optimum Nutrition Whey Protein

BLOG | Are You Getting Enough Protein?

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Optimum Nutrition

  • Optimum Nutrition Clear Plant Protein - Juicy Peach
    Optimum Nutrition Clear Plant Protein - Juicy Peach
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  • Optimum Nutrition Clear Plant Protein - Lime Sorbet
    Optimum Nutrition Clear Plant Protein - Lime Sorbet
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  • Optimum Nutrition Gold Standard 100% Whey Protein - Double Rich Chocolate
    Optimum Nutrition Gold Standard 100% Whey ProteinOptimum Nutrition Gold Standard 100% Whey Protein - Double Rich Chocolate
  • Optimum Nutrition Gold Standard 100% Whey Protein - Vanilla
    tub of Optimum Nutrition Gold Standard 100% Whey Protein - Vanilla
  • Optimum Nutrition Gold Standard 100% Whey Protein - Strawberry
    Optimum Nutrition Gold Standard 100% Whey Protein - Strawberry
  • Optimum Nutrition Gold Standard 100% Whey Protein - Cookies & Cream
    tubs of Optimum Nutrition Gold Standard 100% Whey Protein - Cookies & Cream
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  • Optimum Nutrition Gold Standard 100% Whey Protein - Chocolate & Mint
    Optimum Nutrition Gold Standard 100% Whey Protein - Chocolate & Mint
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  • Optimum Nutrition Gold Standard 100% Whey Protein - Chocolate Hazelnut
    tub of Optimum Nutrition Gold Standard 100% Whey Protein - Chocolate Hazelnut
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  • Optimum Nutrition Gold Standard 100% Whey Protein - Chocolate Peanut
    Optimum Nutrition Gold Standard 100% Whey Protein - Chocolate Peanut
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  • Optimum Nutrition High Protein Chocolate Shake
    Optimum Nutrition High Protein Chocolate Shake
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  • Optimum Nutrition High Protein Strawberry Shake
    Optimum Nutrition High Protein Strawberry Shake
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  • Optimum Nutrition High Protein Vanilla Shake
    Optimum Nutrition High Protein Vanilla Shake
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  • Optimum Nutrition Gold Standard 100% Plant Based Protein - Chocolate
    tub of Optimum Nutrition Gold Standard 100% Plant Based Protein - Chocolate
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  • Optimum Nutrition Gold Standard 100% Plant Based Protein - Vanilla
    tub of Optimum Nutrition Gold Standard 100% Plant Based Protein - Vanilla
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  • Optimum Nutrition Creatine
    Optimum Nutrition CreatineOptimum Nutrition Creatine capsules
    Optimum Nutrition Creatine
    Regular price
    €17.00 €39.15
  • Optimum Nutrition Serious Mass - Chocolate
    Optimum Nutrition Serious Mass
  • Optimum Nutrition Serious Mass - Vanilla
    Optimum Nutrition Serious Mass - Vanilla
  • Optimum Nutrition Serious Mass - Strawberry
    bag of Optimum Nutrition Serious Mass - Strawberry
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  • Optimum Nutrition Serious Mass - Banana
    Optimum Nutrition Serious Mass - Banana
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  • Optimum Nutrition Dark Chocolate Mint Plant Protein Bar
    Optimum Nutrition Dark Chocolate Mint Plant Protein Bar
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  • Optimum Nutrition Dark Chocolate Sea Salt Plant Protein Bar
    Optimum Nutrition Dark Chocolate Sea Salt Plant Protein Bar
  • Optimum Nutrition Gold Standard Pre-Workout - Blue Raspberry
    Optimum Nutrition Gold Standard Pre-Workout - Blue Raspberry
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  • Optimum Nutrition Gold Standard Pre-Workout - Fruit Punch
    Optimum Nutrition Gold Standard Pre-Workout - Fruit Punch
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  • Optimum Nutrition Pre-Workout Shot - Mixed Berry
    Optimum Nutrition Pre-Workout Shot - Mixed Berry
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  • Optimum Nutrition Pre-Workout Shot - Lemon Lime
    Optimum Nutrition Pre-Workout Shot - Lemon Lime
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  • Optimum Nutrition Pre-Workout Shot - Cola
    Optimum Nutrition Pre-Workout Shot - Cola
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  • Optimum Nutrition Gold Standard Pre-Workout - Watermelon
    Optimum Nutrition Gold Standard Pre-Workout - Watermelon
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  • Optimum Nutrition Gold Standard Pre-Workout - Green Apple
    Optimum Nutrition Gold Standard Pre-Workout - Green Apple
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  • Optimum Nutrition Gold Standard 100% Casein - Chocolate
    Optimum Nutrition Gold Standard 100% Casein
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  • Optimum Nutrition Gold Standard 100% Casein - Vanilla
    Optimum Nutrition Gold Standard 100% Casein - Vanilla
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  • Optimum Nutrition Gold Standard Pre Workout Advanced - Fruit Punch
    Optimum Nutrition Gold Standard Pre Workout Advanced - Fruit Punch
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  • Optimum Nutrition Gold Standard Pre Workout Advanced - Blue Raspberry
    Optimum Nutrition Gold Standard Pre Workout Advanced - Blue Raspberry
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  • Optimum Nutrition Gold Standard Pre Workout Advanced - Sour Gummy
    Optimum Nutrition Gold Standard Pre Workout Advanced - Sour Gummy
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  • Optimum Nutrition Gold Standard Pre Workout Advanced - Tropical
    Optimum Nutrition Gold Standard Pre Workout Advanced - Tropical
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  • Optimum Nutrition Gold Standard BCAA - Raspberry & Pomegranate
    tub of Optimum Nutrition Gold Standard BCAA - Raspberry & Pomegranate
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  • Optimum Nutrition Gold Standard BCAA - Strawberry & Kiwi
    Optimum Nutrition Gold Standard BCAA - Strawberry & Kiwi
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  • Optimum Nutrition BCAA Capsules 1000mg
    Optimum Nutrition BCAA Capsules 1000mg
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  • Optimum Nutrition Gold Standard Isolate - Strawberry
    Optimum Nutrition Gold Standard Isolate
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  • Optimum Nutrition Gold Standard Isolate - Chocolate
    Optimum Nutrition Gold Standard Isolate - Chocolate
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  • Optimum Nutrition Marshmallow Crispy Protein Bar
    Optimum Nutrition Marshmallow Crispy Protein Bar
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  • Optimum Nutrition Chocolate Brownie Crispy Protein Bar
    Optimum Nutrition Chocolate Brownie Crispy Protein Bar
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  • Optimum Nutrition Fruit & Nut Crispy Protein Bar
    Optimum Nutrition Fruit & Nut Crispy Protein Bar
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  • Optimum Nutrition Peanut Butter Crispy Protein Bar
    Optimum Nutrition Peanut Butter Crispy Protein Bar
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  • Optimum Nutrition Rocky Road Whipped Protein Bar
    Optimum Nutrition Rocky Road Whipped Protein Bar
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  • Optimum Nutrition Cookies & Cream Whipped Protein Bar
    Optimum Nutrition Cookies & Cream Whipped Protein Bar
  • Optimum Nutrition Choc Caramel Whipped Protein Bar
    Optimum Nutrition Choc Caramel Whipped Protein Bar
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  • Optimum Nutrition Peanut Butter Whipped Protein Bar
    Optimum Nutrition Peanut Butter Whipped Protein Bar
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  • Optimum Nutrition Essential Amino Energy - Watermelon
    Optimum Nutrition Essential Amino Energy watermelon
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Brands | Optimum Nutrition

From the beginning in 1986, ON has taken a hands-on approach to maintaining the very highest standards of quality with strict ingredients selection, quality control, lab testing and manufacturing processes with products awarded the Informed Sports certification. 


ON’s commitment to bring innovative products and consistent quality to the marketplace makes them an Evergreen Healthfoods favourite.

Free Delivery

If your order value is €55 or more, then delivery is FREE to any destination within the Island of Ireland.

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Click & Collect

Click and collect is now available in all eight of Galway based stores. Shop as normal, and select the Click & Collect option at checkout.

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Health Advice

Our staff are on hand to offer guidance across our product range to determine what best suits your needs.

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Green leaves arranged on a white background