Rule 1 Mass Gainer

$149.99 $127.49 Sale Online Only Price Match
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Shipping Policy

Fitness Warehouse provides Standard National Curbside Delivery using leading Australian Couriers. Your shipping time frame will vary depending on the method chosen, your location and the product you have purchased. Some items may be dispatched directly to you by our supplier. 

Change of Mind / Cancellations

  • Orders may sometimes be cancelled before dispatch, but approval is at our discretion.

  • A 7% cancellation fee may apply to cover transaction and admin costs.

  • Orders already dispatched cannot be cancelled; see our Returns Policy below.

The cost of shipping your order is calculated at checkout. You can discover freight costs for purchases of multiple items by simply adding all of the products to your cart, the shipping calculator at checkout will then determine the costs.

For regional deliveries our most often used courier is AirRoad. Fitness Warehouse does not currently provide International Shipping.

From time to time we will run ‘Free Shipping’ promotions. To view the applicable products, view our Free Shipping Collection: https://fitnesswarehouse.com.au/collections/free-shipping


Delivery T&C’s

  • Deliveries from Fitness Warehouse have Authority to Leave (ATL) by default. It is your responsibility to advise us;
    • If there is a preferred location you wish to have the item left
    • If you do not give permission for ATL
    • If the address is a business address, as we will need operating hours and the name of the building.
    • If you would like to arrange an alternative delivery method.
    • Responsibility of goods transfers to the recipient after delivery to the nominated address. 
    • Fitness Warehouse is not liable for any loss, theft or damage after delivery under ATL.
  • Please note that all national deliveries from Fitness Warehouse are provided as curbside delivery only.
    • If you require your item to be left in a specific location, it is your responsibility to advise Fitness Warehouse before the item is dispatched.
    • Specialised deliveries that are beyond standard curbside may incur additional fees.
    • If the courier deems that there is no safe place to leave the item, or should there be any delivery obstructions - including but not limited to stairs, steep driveways, low-hanging trees, lifts, or any other impediment - our third party freight courier reserves the right to take the shipment to the nearest local depot. In such cases, the customer will be responsible for arranging and covering any additional fees required for the final delivery. If the customer chooses not to pay these additional fees, they risk forfeiting their original freight cost. Additionally, any freight return costs incurred by Fitness Warehouse will be deducted from the customer's purchase value.
  • All items will have a shipping cost unless otherwise stated or are part of a free shipping promotion. The cost of freight varies for each customer depending on their location. 
  • We do not deliver large or heavy items to PO boxes. If your shipping address is a PO Box, we may contact you to request a physical address. If one cannot be provided, your order will be refunded as per our change of mind/cancellation policy.
  • Deliveries will be made from Mon - Fri 9am to 5pm only.
  • If you choose to opt out of ATL and you are not be home when delivery is attempted, you may be required to pick up your delivery from the freight company's closest depot. In some instances this may involve a redelivery by the courier, incurring a fee depending on the size of your order.
  • Upon confirmation of dispatch we will email you tracking details which will help give you a rough estimation of delivery time. Occasionally these emails are blocked by your SPAM filter or placed in your junk mail folder.
  • Promotional campaigns, including but not limited to discounted or free shipping offers, may exclude certain regional and remote locations. Fitness Warehouse reserves the right to cancel the order or apply additional freight charges where required and will contact customers prior to dispatch if this applies.
  • If you wish to return an item please refer to our return policy. Freight and delivery costs for returns are passed onto the customer.
  • Free shipping promo applies to Mainland Australia only
  • Customers should check that the number of cartons received matches the quantity shown on the carrier’s consignment note as soon as reasonably possible after delivery.
    For deliveries requiring a signature, any carton shortages must be noted on the carrier’s consignment note at the time of delivery.
    Any short delivery or missing cartons must be reported to Fitness Warehouse within 7 days of delivery, otherwise we may be unable to lodge or follow up on the shortage with the courier.

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Premium Fuel For Serious Size.

When the goal is mass, every calorie counts. Rule 1 Mass Gainer is a high-powered weight gainer built to support serious muscle and size gains, delivering over 1,220 calories, 250g+ of complex carbs, and 40g of premium all-whey protein in every two-scoop serving. The 6:1 carb-to-protein ratio gives your body the nutritional firepower it needs to grow, recover, and come back stronger. Added creatine, MCTs, and glutamine push your results even further.

Perfect for hard gainers or anyone looking to hit their daily calorie targets with ease, Rule 1 keeps it clean with zero creamers, zero soy protein, zero banned substances, and Informed Choice certification to back it up.


What's Inside

1,220+ Calories Per Serve The calorie surplus your body needs to build size, support recovery, and keep up with the demands of heavy training.

40g All-Whey Protein A blend of whey concentrate, isolate, and hydrolysate delivering complete amino acids to fuel muscle repair and growth after every session.

250g+ Complex Carbohydrate Blend Multi-source carbs replenish glycogen stores post-training and provide sustained energy, with no cheap fillers or spiking agents.

1g Creatine Monohydrate Supports strength output, power, and muscle volumisation when paired with consistent resistance training.

MCTs and Glutamine Clean energy from medium-chain triglycerides plus glutamine to support recovery and reduce muscle soreness between sessions.

9g Naturally-Occurring BCAAs Derived straight from the all-whey protein blend to support muscle protein synthesis and protect against breakdown during heavy lifting.


Key Features

  • 1,220+ calories per serve
  • 40g all-whey protein (concentrate, isolate and hydrolysate)
  • 250g+ complex carb blend, 6:1 carb-to-protein ratio
  • 1g creatine monohydrate + MCTs + glutamine
  • Zero creamers, zero spiking, zero soy protein, zero banned substances
  • Informed Choice certified, regularly tested by LGC anti-doping lab
  • Available in: Chocolate Fudge, Vanilla Creme, Strawberries and Creme, Cookies and Creme, Chocolate Peanut Butter

How to Use

Add 2 heaping scoops to 600-700ml of water or milk in a blender or large shaker and mix until smooth. Use alongside your regular meals to support your daily calorie goals. For best results, combine with a nutrient-dense diet and consistent resistance training.

Want to crank up the calories? Blend with whole milk, two scoops of ice cream, or add fruit and nut butter for a next-level mass-building shake.