When is Nutrition Warehouse's birthday sale in New Zealand?

Nutrition Warehouse’s annual Birthday Sale kicks off for one weekend every May — and it’s our biggest sale of the year! It’s the perfect time to stock up and save on your favourite supplements, with massive discounts available online and in-store for New Zealand customers. Whether you're chasing great deals or refilling your stack, the NW Birthday Sale is not to be missed!

Best Price Guarantee on Supplements

Nutrition Warehouse offers a massive range of leading global supplement brands—all at unbeatable prices. Our Birthday Sale is the perfect time to stock up on your favourites or discover something new at a great price.

Don’t miss your chance to score big on the best sports supplement deals of 2025. Shop top-rated brands across pre-workouts, protein, recovery, and more, including:

EHPLabs, PharmaLabs, Optimum Nutrition, Genetix Nutrition, Rule 1 Proteins, Anabolix Nutrition, bRaw, Applied Nutrition, International Protein, Max’s Supplements, Maxine’s, ATP Science, Body Science BSC, Nexus Sports Nutrition, BSN Supplements, Faction Labs, Ghost Lifestyle, Gen-Tec Nutrition, Herbs of Gold, Caruso’s Natural Health, Endura Sports, Ethical Nutrients, Fusion Health

Don’t Let the Mid-Year Blues Stop Your Gains. Shop the Best Supps Now!

Get back into gear with huge supplement savings and get back on track to your gains in 2025 at Nutrition Warehouse's Birthday Sale. Save on all your sports supplements,apparel,vitamins and gym accessories. It’s easy to find the right supplement and gift ideas while saving big across all fitness and health supplements.

Shop the top ten supplement categories:

Protein Powders – huge savings across the top ten protein brands.

Pre Workouts – shop the top ten pre workout brands at prices you won’t believe.

Fat Burners – all the best fat burners at discounted prices, including New Zealand's top 10 fat burners. 

Amino Acids – grab the best amino acids in Australia with massive savings.

Protein Bars – massive discounts on all protein bars and New Zealand's top ten protein bars.

Women’s Supps – fuel your body with New Zealand's top ten women’s supps at discounted prices.

Creatine Supps – feed your strength with the best creatine supplements at low prices.

Post Workout – power up your workouts with the best post workout supps at low prices!

Vitamins & Minerals – huge savings on all your top vitamins and minerals.

Test Boosters – boost your health with New Zealand's top ten test boosters.

Natural Products – supercharge your health and wellness with the best natural supps.

Accessories – time to show off all your best assets in the best gym accessories and apparel.

Best Price Guarantee on the Largest International and Australian Brands In-Store and Online.

At Nutrition Warehouse, we’re proud to offer a huge selection of top supplement brands, including the best from around the world. Whether you’re shopping online or visiting our Manukau store, you’ll find unbeatable value backed by our best price guarantee!

Not sure what to get?

You can buy your choice of physical or electronic gift cards. With values up to $200, it is an easier option when you want to shop at your own pace.

What are the benefits of being a My Active Rewards Member?

Discover a world of members-only benefits and access exclusive offers, giveaways, and special birthday perks. Plus, you earn points for every purchase so you can cash back the next time you shop! Join now!

What Other Nutrition Warehouse Sale Events Can I Look Forward To?

Gear up for huge savings with Nutrition Warehouse’s massive sales and events happening year-round, including:  

Black Friday, Boxing Day Sale, Supplement Awards, Genetix Weekend, Anabolix Weekend  

No matter the time of the year, you set the vision, and we’ll back you all the way with the best prices in supplements.

Whatever the goal, our seasoned pros know what you need to build better and boost your gains with the best deals. We’re here to make your fitness experience epic. Shop NW and fuel your story!