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Buy Whey Protein in NZ

Buy your whey protein from NZ’s trusted supplement store with our premium selection of quality ingredients and incredible tastes. Ideally suited for anyone aiming to build muscle, improve fitness levels, or add a protein boost to their day.

Renowned for its help with building lean muscle mass, whey protein powder provides all nine essential amino acids that the human body cannot synthesise on its own. These amino acids are integral to various bodily functions, most notably the growth and repair of muscles, which is why whey protein is a fantastic supplement for muscle-building regimes.

Browse our selection and find the perfect match for your lifestyle and taste buds. Whether you're a dedicated athlete, a gym enthusiast, or someone just looking to up their protein intake, our whey protein powders are here to boost your daily protein intake, one scoop at a time.

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  • ATHLETECH PRO 6 WHEY 5LB - Bay Supplements - Protein Powder - Vanilla - Creatine - Extended Release Protein - Muscle Growth
    Original price $129.95 - Original price $129.95
    Original price
    $129.95
    $129.95 - $129.95
    Current price $129.95

    ATHLETECH PRO 6 WHEY 5LB

    Athletech

    A Comprehensive Post-Workout Protein Supplement Athletech Pro 6 is a post-workout protein supplement. It is formulated based on protein research t...

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    Original price $129.95 - Original price $129.95
    Original price
    $129.95
    $129.95 - $129.95
    Current price $129.95
  • ATHLETECH PRO 6 WHEY 5LB + CREATINE MONOHYDRATE GUMMIES + PRE-WORKOUT - Bay Supplements - Protein Powder - Creatine - deals
    Save 33% Save %
    Original price $194.90
    Original price $194.90 - Original price $194.90
    Original price $194.90
    Current price $129.95
    $129.95 - $129.95
    Current price $129.95

    ATHLETECH PRO 6 WHEY 5LB + CREATINE MONOHYDRATE GUMMIES + PRE-WORKOUT

    Athletech

    A Comprehensive Post-Workout Protein Supplement Athletech Pro 6 is a post-workout protein supplement. It is formulated based on protein research t...

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    Original price $194.90
    Original price $194.90 - Original price $194.90
    Original price $194.90
    Current price $129.95
    $129.95 - $129.95
    Current price $129.95
    Save 33% Save %
  • Original price $5.00 - Original price $5.00
    Original price
    $5.00
    $5.00 - $5.00
    Current price $5.00

    PACK NUTRITION LEVEL 1 WHEY PROTEIN - SAMPLE

    Pack Nutrition

    At Pack Nutrition, great products start with great TASTE. Our philosophy: Go big (on taste) or go home. Gone are the days when you need to chug bac...

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    Original price $5.00 - Original price $5.00
    Original price
    $5.00
    $5.00 - $5.00
    Current price $5.00
  • MUTANT PRO WHEY PROTEIN SAMPLE - COOKIES & CREAM - Bay Supplements
    Original price $5.00 - Original price $5.00
    Original price
    $5.00
    $5.00 - $5.00
    Current price $5.00

    MUTANT PRO WHEY PROTEIN SAMPLE - COOKIES & CREAM

    Mutant

    Original price $5.00 - Original price $5.00
    Original price
    $5.00
    $5.00 - $5.00
    Current price $5.00
  • Rule 1 Whey Blend 10LB - Bay Supplements - Protein Powder - Chocolate Fudge - Whey Protein
    Original price $264.95 - Original price $264.95
    Original price
    $264.95
    $264.95 - $264.95
    Current price $264.95

    Rule 1 Whey Blend 10LB

    Rule 1

    Support lean muscle growth and recovery with Rule 1 Whey Blend, a premium protein powder combining whey isolate, whey concentrate, and hydrolysed w...

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    Original price $264.95 - Original price $264.95
    Original price
    $264.95
    $264.95 - $264.95
    Current price $264.95
  • ATHLETECH PRO 6 WHEY 2LB - Bay Supplements - Protein Powder - Creatine - Extended Release Protein - Muscle Growth
    Original price $59.95 - Original price $59.95
    Original price
    $59.95
    $59.95 - $59.95
    Current price $59.95

    ATHLETECH PRO 6 WHEY 2LB

    Athletech

    A Comprehensive Post-Workout Protein Supplement Athletech Pro 6 is a post-workout protein supplement. It is formulated based on protein research t...

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    Original price $59.95 - Original price $59.95
    Original price
    $59.95
    $59.95 - $59.95
    Current price $59.95
  • OPTIMUM NUTRITION GOLD STANDARD 100% WHEY 1LB - Bay Supplements - Protein Powder - Double Rich Chocolate - Whey Protein
    Original price $59.95 - Original price $59.95
    Original price
    $59.95
    $59.95 - $59.95
    Current price $59.95

    OPTIMUM NUTRITION GOLD STANDARD 100% WHEY 1LB

    Optimum Nutrition

    Looking for the world’s most trusted whey protein? Optimum Nutrition Gold Standard 100% Whey is the #1 selling protein powder globally. With fast-d...

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    Original price $59.95 - Original price $59.95
    Original price
    $59.95
    $59.95 - $59.95
    Current price $59.95
  • MUTANT HARDCORE WHEY 5LB - Bay Supplements - Protein Powder - Chocolate Milkshake - Whey Isolate Protein - Whey Protein
    Original price $159.95 - Original price $159.95
    Original price
    $159.95
    $159.95 - $159.95
    Current price $159.95

    MUTANT HARDCORE WHEY 5LB

    Mutant

    Most protein powders are overloaded with fillers, cheap concentrates, and underdosed formulas. MUTANT® Hardcore Whey™ is different. Built for serio...

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    Original price $159.95 - Original price $159.95
    Original price
    $159.95
    $159.95 - $159.95
    Current price $159.95
  • MUTANT BORN HARDCORE DELUXE SHAKER 1L + 4x THERMAL LABS FORGE WHEY SAMPLE - Bay Supplements - Shakers - deals - Protein powder
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    Original price $34.95
    Original price $34.95 - Original price $34.95
    Original price $34.95
    Current price $19.95
    $19.95 - $19.95
    Current price $19.95

    MUTANT BORN HARDCORE DELUXE SHAKER 1L + 4x THERMAL LABS FORGE WHEY SAMPLE

    Mutant

    Mutant Born Hardcore Deluxe Shaker 1L - the ultimate companion for your fitness journey. Designed with durability and performance in mind, this sha...

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    Original price $34.95
    Original price $34.95 - Original price $34.95
    Original price $34.95
    Current price $19.95
    $19.95 - $19.95
    Current price $19.95
    Save 43% Save %

Your Questions Answered

What is whey protein?

Whey protein is a high-quality protein powder derived from the liquid by-product of cheese production, known as whey. Packed with essential amino acids, it's an excellent supplement for muscle repair and growth, making it a go-to supplement for athletes and gym-goers.

How much whey protein powder should I have per day?

The amount of whey protein you have daily depends on several factors, including body weight, activity level, and overall protein requirements. A general guide suggests that 1.2 to 2.2 grams of protein per kilogram of body weight benefits those doing regular training or exercising. Every whey protein powder will have its own dosing information on the back, which you should follow. If in doubt, consult your clinician to tailor the suitable amount for your needs.

What is the difference between whey protein and whey isolate?

Whey isolate is a more refined form of whey protein, which goes through further processing to remove most fats and lactose. This means whey isolate has a higher protein content by weight than standard whey protein powder concentrates. This makes whey isolate an excellent option for those looking to increase their protein intake without the additional fats and carbohydrates or for individuals sensitive to lactose.

How is whey protein made?

Whey protein is made from the coagulation of milk during the cheese-making process, which separates the solid curds from the liquid whey. The liquid is then pasteurised and dried into a powder. Whey protein powder is a great supplement that can be easily mixed into shakes, smoothies, and other recipes to increase protein intake.