Optimum Nutrition Gold Standard 100% Whey

Optimum Nutrition Gold Standard 100% Whey

Engineered with purpose. Worn with confidence

Regular price £14.49 GBP
Regular price £14.49 GBP Sale price £14.49 GBP
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    GymBum UK Size Guide

    GYMBUM UK®

    Size Guide


    1️⃣ Women – Sports Bras

    Measure Yourself

    For accurate sizing, keep the tape measure level and parallel to the ground.

    Bust
    Measure around the fullest part of your chest.

    Underbust
    Measure directly under your bust where the bra band sits.


    Body Measurements (Inches)

    Size Bust Underbust
    XS 33–34" 27–28"
    S 34–36" 28–30"
    M 36–38" 30–32"
    L 38–40" 32–34"
    XL 40–43" 34–36"
    2XL 43–46" 36–39"
    3XL 46–49" 39–42"

    Between sizes?
    Size up for a more comfortable fit.
    Size down for a more compressive performance fit.


    2️⃣ Women – Tops & T-Shirts

    Body Measurements (Inches)

    UK Size Bust Waist
    4–6 31–33" 24–26"
    8–10 33–36" 26–28"
    12–14 36–40" 28–32"
    16 40–43" 32–34"
    18 43–46" 34–37"

    3️⃣ Women – Leggings & Shorts

    Body Measurements (Inches)

    UK Size Waist Hips
    4–6 24–26" 34–36"
    8–10 26–28" 36–38"
    12–14 28–32" 38–42"
    16 32–34" 42–44"
    18 34–37" 44–46"

    4️⃣ Men – Tops & Hoodies

    Size Chest Waist
    S 36–38" 30"
    M 38–40" 32–34"
    L 42–44" 36"
    XL 46–48" 38"
    XXL 50–52" 40–42"

    5️⃣ Men – Shorts & Joggers

    Size Waist
    S 30"
    M 32–34"
    L 36"
    XL 38"
    XXL 40–42"

    Fit & Sizing Notes

    • Some styles follow Asian sizing and may run 1–2 sizes smaller than standard UK sizing.

    • Refer to each product description for specific fit details.

    • Measurements may vary slightly depending on fabric and cut.

    Product Description

    Optimum Nutrition Gold Standard 100% WHEY is the world’s best-selling protein powder*. Quick and easy to prepare, our high-quality whey protein is ideal for boosting your protein intake at breakfast, and kick-start muscle protein synthesis before your workout and as part of your recovery routine**. ON whey protein powder is Informed Choice certified and is proven to help you stay on track with your fitness goals. Our award-winning formula contains naturally occurring BCAAs and glutamine, plus 24 grams of high-quality, fast-absorbing whey protein powder with whey protein isolate as the main ingredient that helps with muscle gain and supports recovery* after every training session. Designed for the goal-focused athlete, fitness lovers and those who are looking to get into shape, our ON pre-workout protein powder comes in a variety of great-tasting flavours: double rich chocolate, banana cream, vanilla ice cream, white chocolate raspberry, delicious strawberry and many more. Low quantities of sugar and fat keep things on the healthy side. Gold Standard Whey’s ready-to-mix formula means you can enjoy it any time of day, whether as protein shakes or as an addition to your favourite meals and drinks – our unflavoured protein powder is perfect to create your own tasty recipies. Gold standard whey protein is available in a range of different serving sizes and easy to prepare: simply mix one rounded scoop in 180-240 ml of cold water. ON protein powder is best enjoyed first thing in the morning or/and during the 30 minutes just before or immediately after training. *Source: Euromonitor International Limited; Consumer Health 2023 edition, Sports Protein Powder category, % retail value shares, 2022 data ** Protein supports growth and maintenance of muscle mass: Source EFSA Journal 2010;8(10):1811; 2011;9(6):2203

    Ingredients

    WHEY Protein Blend (98%) [MILK] (WHEY Protein Isolate, WHEY Protein Concentrate, Hydrolysed WHEY Protein Isolate, Emulsifier: SOY Lecithin), Flavourings MILK], Thickener (Xanthan Gum), Sweetener (Sucralose), Acesulfame

    Directions

    Add one scoop of ON Gold Standard 100% Whey to 236 ml of water, nonfat milk, and blend for few seconds until you get the desired consistency. Then add 1 or 2 ice cubes and blend for an additional 30 seconds. You can add fresh fruits and enjoy it as a smoothie.

    Legal Disclaimer

    Not intended for use by persons under age 18. Do not exceed recommended dosage. Keep out of reach of children.

    Manufacturer Contact Information

    4 Waterside, Dublin 24, Ireland

    • Optimum Nutrition’s Gold Standard 100% WHEY is the world’s best-selling protein powder* designed to support your fitness journey from day one
    • FAST-ABSORBING whey protein with whey protein isolate as the main ingredient helps with muscle gain and supports recovery* after every training session
    • The ON whey protein formula is Informed Choice certified, contains naturally-occurring BCAAs and GLUTAMINE and is LOW IN SUGAR and fat
    • Available in a VARIETY OF SIZES and FLAVOURS: double rich chocolate, banana cream, vanilla ice cream, unflavored protein powder and more
    • EASY & CONVENIENT: mix one scoop in 180-240 ml of cold water; best enjoyed in the morning or/and during the 30 minutes just before or immediately after training

    FREE UK Shipping on Orders £50+

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    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    Meet Jess — Your Daily Motivation

    Real Training. Real Results.

    Jess represents everything GymBum stands for — hard work, positivity, and consistency. Whether she’s training outdoors or smashing a session in the gym, she puts our activewear through the real test: everyday movement. If she loves it, you will too.

    Meet Chloe — Strength with a Smile

    Your Inspiration for Everyday Training

    Chloe brings energy, positivity, and real dedication to every workout. Whether she’s lifting in the gym or running Scotland’s trails, she pushes our GymBum activewear to its limits. Her natural, confident style perfectly reflects what GymBum stands for — feel good, move strong, and become the best version of yourself.

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