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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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  • OPTIMUM NUTRITION GOLD STANDARD 100% WHEY 5LB - Bay Supplements
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    $149.95 - $149.95
    $149.95
    $149.95 - $149.95
    $149.95

    OPTIMUM NUTRITION GOLD STANDARD 100% WHEY 5LB

    Optimum Nutrition

    OPTIMUM 100% WHEY GOLD STANDARD WITH FASTER-ACTING HYDROWHEY PACKED WITH WHEY PROTEIN ISOLATES AND FAST-ACTING HYDROWHEY WHEY PEPTIDES!Optimum 1...

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    $149.95 - $149.95
    $149.95
    $149.95 - $149.95
    $149.95
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  • $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95

    MUSCLETECH NITRO TECH 4LB

    Muscletech

    BUILD MORE LEAN MUSCLE AND INCREASE STRENGTH AND PERFORMANCE WITH MUSCLETECH NITRO TECH PROTEIN! 30g Protein per serve Primarily Whey Protein Iso...

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    $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95
  • OPTIMUM NUTRITION GOLD STANDARD 100% WHEY 2LB - Bay Supplements
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    $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95

    OPTIMUM NUTRITION GOLD STANDARD 100% WHEY 2LB

    Optimum Nutrition

    PACKED WITH WHEY PROTEIN ISOLATES AND FAST-ACTING HYDROWHEY WHEY PEPTIDES! Optimum 100% Whey Protein won the Supplement Of The Year and Protein Po...

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    $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95
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  • MUSCLETECH NITRO TECH 100% WHEY GOLD 5LB - Bay Supplements
    $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95

    MUSCLETECH NITRO TECH 100% WHEY GOLD 5LB

    Muscletech

    Nitro-Tech 100% Whey Gold features 24g whey protein peptides and isolate to support fast recovery and help you build more lean muscle mass.   Nitro...

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    $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95
  • OPTIMUM NUTRITION GOLD STANDARD 100% WHEY 10LB - Bay Supplements
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    $269.95 - $269.95
    $269.95
    $269.95 - $269.95
    $269.95

    OPTIMUM NUTRITION GOLD STANDARD 100% WHEY 10LB

    Optimum Nutrition

    OPTIMUM 100% WHEY GOLD STANDARD WITH FASTER-ACTING HYDROWHEY PACKED WITH WHEY PROTEIN ISOLATES AND FAST-ACTING HYDROWHEY WHEY PEPTIDES!Optimum 1...

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    $269.95 - $269.95
    $269.95
    $269.95 - $269.95
    $269.95
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  • $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95

    MUTANT WHEY 5LB

    Mutant

    Feed muscle and recovery THROUGHOUT THE DAY   Do this. Do that. Eat this. Eat that. The noise is deafening. Stop fk’n overthinking it. If you train...

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    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95
  • MUSCLEPHARM COMBAT 100% WHEY 5lb - Bay Supplements
    $114.95 - $139.95
    $114.95
    $114.95 - $139.95
    $114.95

    MUSCLEPHARM COMBAT 100% WHEY 5LB

    Musclepharm

    WHY MUSCLEPHARM IS YOUR DREAM POST-WORKOUT PROTEIN Intense workouts demand complex nutrition. MusclePharm is the perfect way to get that nutrition ...

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    $114.95 - $139.95
    $114.95
    $114.95 - $139.95
    $114.95
  • $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95

    RULE 1 WHEY BLEND 5LB

    Rule 1

    R1 Whey Blend features: 80%*+ protein per scoop - NO spiking 24g protein/serving - 100% Pure Whey Blend Naturally rich in BCAAs + Glutamine Anytim...

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    $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95
  • $64.95 - $64.95
    $64.95
    $64.95 - $64.95
    $64.95

    RULE 1 WHEY BLEND 2LB

    Rule 1

    R1 WHEY BLEND 100% WHEY PROTEIN FORMULA Our three-whey blend offers the perfect mix of nutritional quality, great taste, and bang for your buck. 10...

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    $64.95 - $64.95
    $64.95
    $64.95 - $64.95
    $64.95
  • MUSCLETECH NITRO TECH 1.5LB - Bay Supplements
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    $59.95 - $59.95
    $59.95
    $59.95 - $59.95
    $59.95

    MUSCLETECH NITRO TECH 1.5LB

    Muscletech

    NitroTech is a scientifically engineered whey protein powder designed for anyone looking to build more muscle, improve their strength and enhance o...

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    $59.95 - $59.95
    $59.95
    $59.95 - $59.95
    $59.95
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  • EHP LABS OXYWHEY LEAN WELLNESS PROTEIN 2LB - Bay Supplements
    $84.95 - $84.95
    $84.95
    $84.95 - $84.95
    $84.95

    EHP LABS OXYWHEY LEAN WELLNESS PROTEIN 2LB

    EHP Labs

    OxyWhey is an industry-first, innovative and science-based Lean Wellness Protein formula made from 100% pure, lean, non-GMO whey protein. All flavo...

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    $84.95 - $84.95
    $84.95
    $84.95 - $84.95
    $84.95
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    $189.95 - $189.95
    $189.95
    $189.95 - $189.95
    $189.95

    MUTANT WHEY NEW & IMPROVED 10LB

    Mutant

    Mutant Whey 10LB New & Improved! BUILD MUSCLE | NEW AMAZING TASTE | BETTER MIX-ABILITY  Mutant's #1 selling Protein is now even better tasting ...

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    $189.95 - $189.95
    $189.95
    $189.95 - $189.95
    $189.95
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  • MUSCLETECH NITRO-TECH 100% WHEY GOLD 2LB - Bay Supplements
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    $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95

    MUSCLETECH NITRO-TECH 100% WHEY GOLD 2LB

    Muscletech

    Nitro-Tech 100% Whey Gold features 24g whey protein peptides and isolate to support fast recovery and help you build more lean muscle mass.   This ...

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    $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95
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  • Sold out
    $59.95 - $59.95
    $59.95
    $59.95 - $59.95
    $59.95

    RULE 1 SOURCE7 PROTEIN 2LB

    Rule 1

    SOURCE7 PROTEINMulti-Source Protein BlendSource7 Protein brings together seven premium proteins, decadent flavor, and velvety smooth texture in an ...

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    $59.95 - $59.95
    $59.95
    $59.95 - $59.95
    $59.95
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  • $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95

    RULE 1 SOURCE7 PROTEIN 5LB

    Rule 1

    SOURCE7 PROTEINMulti-Source Protein BlendSource7 Protein brings together seven premium proteins, decadent flavor, and velvety smooth texture in an ...

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    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95
  • MUTANT WHEY PROTEIN 2LB - Bay Supplements
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    $54.95 - $54.95
    $54.95
    $54.95 - $54.95
    $54.95

    MUTANT WHEY PROTEIN 2LB

    Mutant

    We all know that protein helps build muscle. You create that demand for growth with training — high intensity training. Hardcore. Pushing yourself ...

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    $54.95 - $54.95
    $54.95
    $54.95 - $54.95
    $54.95
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  • MUSCLETECH NITRO-TECH 2.2LB - Bay Supplements
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    $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95

    MUSCLETECH NITRO-TECH 2.2LB

    Muscletech

    Whether or not you’re competing, you’re always looking for an edge. For more than two decades, we’ve fueled those with the strength to not just pla...

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    $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95
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  • BALANCE 100% WHEY NATURAL 2KG - Bay Supplements
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    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95

    BALANCE 100% WHEY NATURAL 2KG

    Balance

    Balance 100% Whey Natural 2 kg Balance 100% Whey Protein is a Gluten Free whey protein. This Natural Whey Protein creates an anabolic environment f...

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    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95
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  • BALANCE 100% WHEY NATURAL 1KG - Bay Supplements
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    $69.95 - $69.95
    $69.95
    $69.95 - $69.95
    $69.95

    BALANCE 100% WHEY NATURAL 1KG

    Balance

    Balance 100% Whey Natural 1 kg  Balance 100% Whey Protein is a Gluten Free whey protein. This Natural Whey Protein creates an anabolic environment ...

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    $69.95 - $69.95
    $69.95
    $69.95 - $69.95
    $69.95
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  • $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    THERMAL LABS FORGE WHEY PROTEIN 5LB

    Thermal Labs

    Unleash your potential with Thermal Labs Forge Whey Protein 5lb, the ultimate fuel for muscle growth, recovery, and performance. Packed with high-q...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95

    APPLIED NUTRITION DIET WHEY PROTEIN 450G

    Applied Nutrition

    HIGH PROTEIN | LOW SUGAR | LEAN SHAKE   Applied Nutrition's Diet Whey Protein is a high-quality protein supplement designed to support weight manag...

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    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95
  • Sold out
    $139.95
    $139.95 - $139.95
    $139.95
    $111.95
    $111.95 - $111.95
    $111.95

    RULE 1 WHEY BLEND 5LB - DATED 15 OCT 25

    Rule 1

    R1 Whey Blend features: 80%*+ protein per scoop - NO spiking 24g protein/serving - 100% Pure Whey Blend Naturally rich in BCAAs + Glutamine Anytim...

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    $139.95
    $139.95 - $139.95
    $139.95
    $111.95
    $111.95 - $111.95
    $111.95
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  • Save 50% Save %
    $119.90
    $119.90 - $119.90
    $119.90
    $59.95
    $59.95 - $59.95
    $59.95

    ZOMBIE LABS MUSCLEZ BIO-ENHANCED WHEY PROTEIN 2LB + FREE HYDROXYCUT DRINK MIX LEMONADE 21 PACK

    Zombie Labs

    Designed to take your workouts to apocalyptic levels, Musclez is the ultimate fuel for those seeking relentless gains and unprecedented performance...

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    $119.90
    $119.90 - $119.90
    $119.90
    $59.95
    $59.95 - $59.95
    $59.95
    Save 50% Save %
  • Save 20% Save %
    $79.95
    $79.95 - $79.95
    $79.95
    $63.95
    $63.95 - $63.95
    $63.95

    ZOMBIE LABS MUSCLEZ BIO-ENHANCED WHEY PROTEIN 2LB - DATED 10/25

    Zombie Labs

    Designed to take your workouts to apocalyptic levels, Musclez is the ultimate fuel for those seeking relentless gains and unprecedented performance...

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    $79.95
    $79.95 - $79.95
    $79.95
    $63.95
    $63.95 - $63.95
    $63.95
    Save 20% 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.