International Protein Heavy Weight Mass Gainer is formulated for individuals who possess fast metabolisms or high physical outputs and struggle to meet the strict calorie surpluses required for substantial size gains. Featuring a multi-phase carbohydrate engine—anchored by maltodextrin, trehalose, and ModCarb (a real-food matrix of oat bran, quinoa, amaranth, buckwheat, and millet)—this formula regulates glucose absorption, protecting against energy spikes while providing consistent muscular fuel.
The Hard Gainer Protein System leverages four distinct forms of dairy proteins—fast-acting isolates and concentrates alongside slow-digesting calcium caseinate—delivering a continuous amino acid supply for hours. To complement this, healthy lipids including Medium-Chain Triglycerides (MCTs) provide nine calories per gram, offering an efficient calorie-dense component that respects digestive load. Reinforced with a complete profile of 12 essential vitamins and minerals alongside a patented multi-enzyme complex, it ensures that your body efficiently assimilates the high volume of incoming nutrients.
Key Benefits
- Delivers 1,050 High-Energy Calories Per Serving When Mixed With Skim Milk
- Provides 85g Of Timed-Release Protein To Support Muscle Repair And Growth
- Fuels Intense Workouts And Glycogen Replenishment With Multi-Stage Carbohydrates
- Enhances Digestibility And Nutrient Absorption Via Included DigeZyme Enzyme Complex
- Fortifies Daily Micronutrient Intake With 12 Essential Vitamins And Minerals
Ingredients Spotlight
- Maltodextrin, ModCarb Gluten Free & Trehalose Complex - Fast, medium, and slow-digesting carbohydrates engineered to sustain glycogen levels and supply steady physical energy without sudden sharp crashes.
- Whey Protein Concentrate, Calcium Caseinate, Whey Protein Isolate & Hydrolysed Whey Protein Isolate - Multi-phase protein system releasing essential amino acids rapidly and over extended periods for continuous anabolic support.
- MCT Oils & Omega Fats - Calorie-dense healthy fats that support fast metabolisms and increase total calorie intake without relying solely on simple sugars.
- L-Glutamine & Branched-Chain Amino Acids (L-Leucine, L-Isoleucine, L-Valine) - Free-form aminos added to stimulate muscle protein synthesis, minimize muscle breakdown, and accelerate post-workout recovery.
- DigeZyme Digestive Enzyme Blend (Amylase, Protease, Cellulase, Lactase, Lipase) - Targeted digestive enzymes that break down complex macronutrients to maximise absorption and reduce digestive heavy feelings.

| International Heavy Weight Mass Gainer | ||
Serving Size: 220g | ||
| Avg. Qty. Per 220g With 500ml Skim Milk | Avg. Qty. Per 100g | |
| Energy | 4390 kJ | 1600 kJ |
| Calories | 1050 Cal | 380 Cal |
| Protein | 85 g | 29 g |
| Fat - Total | 5.8 g | 2.4 g |
| - Saturated | 3.5 g | 1.3 g |
| Carbohydrates - Total | 160 g | 60 g |
| - Sugars | 33.7 g | 2.2 g |
| Sodium | 440 mg | 100 mg |
| DigeZyme® Digestive Enzyme Blend | ||
| Amylase | 2640 DU/g | 1200 DU/g |
| Protease | 1100 HUT/g | 500 HUT/g |
| Cellulase | 121 CU/g | 55 CU/g |
| Lactase | 440 LAC/g | 200 LAC/g |
| Lipase | 22 FIP/g | 10 FIP/g |
| Vitamins & Minerals | ||
| Calcium | 1060 mg | 160 mg |
| Vitamin A | 375 ug | 170 mg |
| Thiamine | 0.12 mg | 0.05 mg |
| Riboflavin | 1.13 mg | 0.06 mg |
| Niacin | 1 mg | 0.45 mg |
| Vitamin B6 | 0.16 mg | 0.07 mg |
| Vitamin B12 | 0.2 ug | 0.09 ug |
| Pantothenic Acid | 0.5 mg | 0.2 mg |
| Vitamin C | 4 mg | 1.8 mg |
| Vitamin D | 1 ug | 0.45 ug |
| Vitamin E | 1 mg | 0.45 mg |
| Biotin | 3 ug | 1.4 ug |
| Folate | 20 ug | 9 ug |
| Zinc | 1.2 mg | 0.55 mg |
| Iron | 1.2 mg | 0.55 mg |
| Essential Amino Acids | Avg. Qty. Per 220g | Avg. Qty. Per 100g |
| Isoleucine | 3084 mg | 1402 mg |
| Leucine | 5531 mg | 2514 mg |
| Lysine | 4644 mg | 2111 mg |
| Methionine | 985 mg | 448 mg |
| Phenylalanine | 2111 mg | 959 mg |
| Threonine | 3065 mg | 1393 mg |
| Tryptophan | 775 mg | 352 mg |
| Valine | 2953 mg | 1342 mg |
| Ingredients: CARB COMPLEX [Maltodextrin, ModCarbTM (Trim® Processed: Oat bran, Organic Quinoa, Organic Amaranth, Organic Buckwheat, Organic Millet), Trehalose], PROTEIN SYSTEM [Whey Protein Concentrate, Calcium Caseinate, Whey Protein Isolate, Hydrolysed Whey Protein Isolate] (Milk), Cocoa*, Flavours (Milk), L-Glutamine, L-Leucine, L-Isoleucine, L-Valine, Emulsifier (Soy Lecithin), OMEGA-RICH BLEND (Medium Chain Triglycerides, Omega Powder) (Milk), Food Acid (Citric Acid)^, DigeZyme®, Taurine, Natural Colour (Beetroot Juice Powder)^, Sucralose, Vitamins and Minerals [Sodium Ascorbate (Vitamin C), Ferrous Fumarate (Iron), Zinc Sulphate (Zinc), Niacin, Vitamin E, Riboflavin (Vitamin B2), Pyridoxine HCl (Vitamin B6), Thiamine (Vitamin B1), Vitamin A, Folic Acid (Folate), Cholecalciferol (Vitamin D3), Cyanocobalamin (Vitamin B12)]. * Chocolate Flavour Only. ^ Strawberry Vanilla Ice Cream Flavour Only. Vanilla Ice Cream. | ||
| Pricing & Offers | ||
| Online & in-store offers may vary. | ||
| Copyright | ||
| Copyright Mr Supplement 2004-2026. This website, the images, text and tables on it are subject to copyright under the Australian Copyright Act 1968 (Cth). | ||
International Heavy Weight Mass Gainer



