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9% OFF
Natural Weight Gain Supplements Fat Gainer Muscle Builder For Men Women 240Pills
US Store
super health

Natural Weight Gain Supplements Fat Gainer Muscle Builder For Men Women 240Pills

AUD 157 173

Weight Gainer B-12 Chewable Absorbs Faster Than Weight Gain Pills for Fast Massive Weight Gain in Men and Women While Opening Your Appetite More Than Protein
US Store
Clear-Biotic

Weight Gainer B-12 Chewable Absorbs Faster Than Weight Gain Pills for Fast Massive ...
3.7

50+ bought

AUD 83

19% OFF
Appetite Booster Weight Gain Stimulant Supplement Eat More For Underweight Adult
US Store

Appetite Booster Weight Gain Stimulant Supplement Eat More For Underweight Adult

AUD 79 97

Naturade Weight Gain, Chocolate, 2.5 lb 1.2 kg
US Store
Naturade

Naturade Weight Gain, Chocolate, 2.5 lb 1.2 kg
4.4

AUD 107

9% OFF
Weight Gain - CREATINE POWDER 100g - Muscle Gainer Supplements - 2 Bottles
US Store
nature supplements

Weight Gain - CREATINE POWDER 100g - Muscle Gainer Supplements - 2 Bottles

AUD 112 123

12% OFF
Gain Appetite Booster Capsules for Adults, Weight Gainer Support for Men and Women, Creatine Enhanced Weight Gain Pills with Ginger Extract, Blessed Thistle and Gentian Root - 120 Capsules
US Store
Scale Nutrition

Gain Appetite Booster Capsules for Adults, Weight Gainer Support for Men and Women, ...
4.1

200+ bought

AUD 61 69

Appetite Booster Weight Gain Stimulant Supplement Eat More for 8 FL Oz
US Store

Appetite Booster Weight Gain Stimulant Supplement Eat More for 8 FL Oz
4

AUD 57

1 Tin X APPETON Weight Gain for Adult High-Protein Chocolate 450g DHL EXPRESS
US Store
appeton

1 Tin X APPETON Weight Gain for Adult High-Protein Chocolate 450g DHL EXPRESS

AUD 189

Appeton Weight Gain Powder for Adults 900g Increase Body Weight Nutrition Energy
US Store
appeton

Appeton Weight Gain Powder for Adults 900g Increase Body Weight Nutrition Energy

AUD 343

Appeton Weight Gain Powder Adult Vanilla 900g with Lysine FREE DHL Express Ship.
US Store
appeton

Appeton Weight Gain Powder Adult Vanilla 900g with Lysine FREE DHL Express Ship.

AUD 293

Appeton Weight Gain Powder Adult Chocolate 900g with Lysine via DHL Express
US Store
appeton

Appeton Weight Gain Powder Adult Chocolate 900g with Lysine via DHL Express

AUD 309

8% OFF
Weight Gainer - MUSCLE MAKER PLUS - Enhanced Libido 2B
US Store
nature supplements

Weight Gainer - MUSCLE MAKER PLUS - Enhanced Libido 2B

AUD 104 113

Appeton Weight Gain Powder for Adults Chocolate Flavor 900g EXPEDITE SHIPPING
US Store
appeton weight gain

Appeton Weight Gain Powder for Adults Chocolate Flavor 900g EXPEDITE SHIPPING

AUD 308

APPETON WEIGHT GAIN CHOCOLATE 900G
US Store
appeton

APPETON WEIGHT GAIN CHOCOLATE 900G

AUD 342

Serious Mass Weight Gainer - Chocolate, 6lb Packaging May Vary
US Store
glanbia performance nutrition

Serious Mass Weight Gainer - Chocolate, 6lb Packaging May Vary

AUD 132

Smoothie Recipes For Weight Gain Healthy and Delicious Smoothies to Pack on the Pounds and Boost Your Fitness Goals
US Store

Smoothie Recipes For Weight Gain Healthy and Delicious Smoothies to Pack on the ...
4

AUD 29

Appeton EXP 2027 Weight Gain Powder for Adults Chocolate 450g
US Store
appeton

Appeton EXP 2027 Weight Gain Powder for Adults Chocolate 450g

AUD 138

WEIGHT GAIN DIET COOKBOOK FOR BEGINNERS Easy and Friendly High Calorie Recipes For Healthy Weight Gain And Body Building
US Store

WEIGHT GAIN DIET COOKBOOK FOR BEGINNERS Easy and Friendly High Calorie Recipes For ...
4.4

AUD 31

1 Tin X APPETON Weight Gain for Adult High-Protein Chocolate 450g
US Store
appeton

1 Tin X APPETON Weight Gain for Adult High-Protein Chocolate 450g

AUD 138

WEIGHT GAIN COOKBOOK FOR BEGINNERS Healthy and delicious recipes to boost your calories intake How to gain weight and build muscle for men and women
US Store

WEIGHT GAIN COOKBOOK FOR BEGINNERS Healthy and delicious recipes to boost your ...
3.6

AUD 27

9% OFF
Increase Weight Mass Builder Gain Muscle Growth Enhancer Fat Gainer 200 Pills
US Store
fitofat

Increase Weight Mass Builder Gain Muscle Growth Enhancer Fat Gainer 200 Pills

AUD 166 183

6% OFF
Naturade, Weight Gain, Vanilla, 20.3 oz 576 g, 12 Servings, Gluten Free
US Store
naturade

Naturade, Weight Gain, Vanilla, 20.3 oz 576 g, 12 Servings, Gluten Free
4.3

AUD 66 70

17% OFF
BODY GROW Fast Weight Gain Pills Muscle Gainer WEGHT GAIN 60 CAPSULES
US Store
best choice nutrition

BODY GROW Fast Weight Gain Pills Muscle Gainer WEGHT GAIN 60 CAPSULES

AUD 34 41

6% OFF
5 PACK OF Extra Effective Health Tone Natural Herbal Weight Gain Capsules
US Store
health tone

5 PACK OF Extra Effective Health Tone Natural Herbal Weight Gain Capsules

AUD 483 513

Appetitol Appetite-Weight Gain Capsules Natural Appetite and Weight Gain Stimulant for Underweight Children Fortified with Vitamins B1,B2,B3,B5,B6,B12,Folic Acid , Iron, Zinc
US Store
CJ Labs

Appetitol Appetite-Weight Gain Capsules Natural Appetite and Weight Gain Stimulant ...
3.8

AUD 93

Appetite Booster Weight Gain Stimulant Supplement Eat More for Underweight Adults & Kids 4+ Fortified with Vitamins B1,B2,B3,B5,B6,B12, Folic Acid, Iron, Zinc, Amino Acids, Flax Seed Oil
US Store
NGL

Appetite Booster Weight Gain Stimulant Supplement Eat More for Underweight Adults & ...
3.9

400+ bought

AUD 61

6% OFF
Extra Effective Health Tone Weight Gain Capsules -90 Caps by Health Tone
US Store
holland & barrett

Extra Effective Health Tone Weight Gain Capsules -90 Caps by Health Tone

AUD 103 109

5% OFF
BODY GROW Fast Weight Gain Pills Muscle Gainer 60 WEGHT GAIN CAPSULES FOR - Men
US Store
dailyamrit

BODY GROW Fast Weight Gain Pills Muscle Gainer 60 WEGHT GAIN CAPSULES FOR - Men

AUD 54 57

SU-PER Gain Weight for Horses - Equine Supplement Weight Gainer for Horses - Promotes Lean Muscle Mass, Digestion & Appetite - 10 Pound, 1 Month Supply
US Store
SU-PER

SU-PER Gain Weight for Horses - Equine Supplement Weight Gainer for Horses - ...

AUD 184

Naturade Weight Gain Instant Nutrition Drink Mix, Vanilla ,20.3 Ounce
US Store
naturade

Naturade Weight Gain Instant Nutrition Drink Mix, Vanilla ,20.3 Ounce
4.3

AUD 98

MuscleMeds Feast Mode Appetite Stimulant Weight Gain Pills Digestive Enzymes Safe and Effective 90 Caps, Unflavored, 90 Count
US Store
MuscleMeds

MuscleMeds Feast Mode Appetite Stimulant Weight Gain Pills Digestive Enzymes Safe ...
4.1

200+ bought

AUD 54

6% OFF
HealthTone Health Tone Herbal Weight Gain Capsules 90 Caps 500 g Pack of 3
US Store
health tone

HealthTone Health Tone Herbal Weight Gain Capsules 90 Caps 500 g Pack of 3

AUD 274 291

8% OFF
Body Weight Gain - CREATINE 3X 5000mg - Muscle Building Supplements - 90 Tablets
US Store
nature supplements

Body Weight Gain - CREATINE 3X 5000mg - Muscle Building Supplements - 90 Tablets

AUD 73 79

Apetasine Gain Weight Fast Appetite Stimulant Gummy Hunger Booster Increase Hunger for Kids Women Young Adults Appetite Booster Rapid Weight Gainer Gummy Great Flavor Booty Builder
US Store
Clear-Biotic

Apetasine Gain Weight Fast Appetite Stimulant Gummy Hunger Booster Increase Hunger ...
3.9

50+ bought

AUD 83

9% OFF
Increase Body Weight Mass Builder Fat Gainer Muscle Growth Enhancer 100 Pills
US Store
fitofat

Increase Body Weight Mass Builder Fat Gainer Muscle Growth Enhancer 100 Pills

AUD 101 111

7% OFF
Optimum Nutrition, Serious Mass, High Protein Weight Gain Powder, Chocolate 6 lb
US Store
optimum nutrition

Optimum Nutrition, Serious Mass, High Protein Weight Gain Powder, Chocolate 6 lb
4.7

AUD 136 146

Weight Gain Cookbook For Women Complete High Calorie Weight Gain Meal Plan For Beginners 30 Days Easy To Cook Recipes With Nutritious Values
US Store

Weight Gain Cookbook For Women Complete High Calorie Weight Gain Meal Plan For ...
5

AUD 29

6% OFF
Health tone Herbal Weight Gain 90 Capsules BUY ONE GET ONE FREE
US Store
health tone

Health tone Herbal Weight Gain 90 Capsules BUY ONE GET ONE FREE

AUD 151 160

13% OFF
Supragenix CB-1 Weight Gainer Pills 90 Count | Weight Gain Support for Women & Men | Clinically Tested Appetite Booster | Powerful Mass Gainer
US Store
Supragenix

Supragenix CB-1 Weight Gainer Pills 90 Count | Weight Gain Support for Women & Men ...
4.1

900+ bought

AUD 129 149

Weight Gainer Protein Powder Muscle Mass Builder Vanilla Flavor 15 Servings
US Store
Holy Store Company

Weight Gainer Protein Powder Muscle Mass Builder Vanilla Flavor 15 Servings
5

AUD 142

Recipe Planning For A Healthy Weight Gain How To Create Nutritious Meals To Help You Put On Weight In A Healthy And Tasty Way
US Store

Recipe Planning For A Healthy Weight Gain How To Create Nutritious Meals To Help ...
5

AUD 23

Weight Gainer | Whey Protein Powder | Muscle Builder for Men & Women | Vanilla, 7.8 lbs
US Store
MUSCLEOLOGY

Weight Gainer | Whey Protein Powder | Muscle Builder for Men & Women | Vanilla, 7.8 ...
5

AUD 149

Dymatize Super Mass Gainer Protein Powder 52g Protein 1280 Calories 6 Pound Gourmet Vanilla & Rich Chocolate Pack of 2
US Store
Dymatize

Dymatize Super Mass Gainer Protein Powder 52g Protein 1280 Calories 6 Pound Gourmet ...
4.8

AUD 190

High-calorie Recipes for Weight Gain The Ultimate High-Calorie Cookbook for Hardgainers, Athletes, and Skinny Individuals Looking to Gain Healthy Weight Fast The Complete Diet & Nutrition Series
US Store

High-calorie Recipes for Weight Gain The Ultimate High-Calorie Cookbook for ...
3.5

AUD 35

Naturade All-Natural Weight Gain, Vanilla, 12 Serving
US Store
Naturade

Naturade All-Natural Weight Gain, Vanilla, 12 Serving
4.2

AUD 80

Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vitamin C and Zinc for Immune Support, Vanilla, 12 Pound Packaging May Vary Pack of 2
US Store
Optimum Nutrition

Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vitamin C and Zinc for ...
4.5

AUD 383

Serious Mass Strawberry Weight Gain Protein Powder | 12 lbs
US Store
Optimum Nutrition

Serious Mass Strawberry Weight Gain Protein Powder | 12 lbs
4.2

50+ bought

AUD 189

VH Nutrition Eatmor Appetite Stimulant - Natural Weight Gain Pills, Vitality & Hunger Boosting Orxegenic Supplement - 120 Capsules
US Store
VH Nutrition

VH Nutrition Eatmor Appetite Stimulant - Natural Weight Gain Pills, Vitality & ...
4.1

AUD 63

Shop Premium Weight Gain Supplements Online with Ubuy Australia

For many, the fitness journey is focused on shedding pounds, but a significant portion of the population faces the exact opposite challenge: putting on mass. Whether you possess a highly active metabolism, lead an intensely busy lifestyle that causes you to miss meals, or are an athlete looking to bulk up, gaining healthy weight requires a consistent caloric surplus. This is where a reliable weight gain supplement steps in as your silent hero.

Purchasing your supplements online from Ubuy Australia grants you access to a premium, globally sourced catalogue. Situated perfectly within the broader health & supplements category, these products offer a world of high-quality macronutrients, complex carbohydrates, and essential vitamins designed to nourish your body and promote sustainable growth.

Explore Different Types of Weight Gain Supplements

Just as every individual's body is different, the weight gain supplements available today come in highly versatile, targeted formulations. Gone are the days of one size fits all, chalky drinks. Modern nutrition science provides high potency solutions for rapid bulking, cleaner formulations for lean muscle, and gentle options tailored for different age groups and genders. Here at our collection there are many branded weight management supplement options available to pick out from. Think of this as selecting the precise nutritional fuel your body demands to thrive.

The Heavyweight Champions (For Men and Hardgainers)

For those who naturally struggle to put on mass, standard meals simply aren't enough to tip the scales. A high-quality mass gainer protein powder is built for this exact scenario. Packed with upwards of 1,000 calories per serving, these formulas combine fast-acting whey protein with complex carbohydrates to fuel rigorous training sessions and accelerate recovery.

If you are hunting for the best weight gain supplements for skinny guys, you need a product that delivers a massive caloric punch without unnecessary fillers. Brands like MuscleTech and Dymatize lead the charge here, offering robust weight gain supplements for men that stimulate muscle protein synthesis while replenishing glycogen stores. They are the ultimate ally for gym-goers, athletes, and anyone tired of hitting a plateau.

Balanced Nourishment (For Women)

While men often seek sheer size, women typically look for lean muscle development, enhanced curves, and healthy weight restoration without feeling overly bloated. Weight gain supplements for women are specially formulated to meet these precise needs.

These variants generally offer a more moderate caloric surplus—focusing heavily on premium protein sources, digestive enzymes, and added vitamins for hair, skin, and bone health. They seamlessly blend into morning smoothies or post-pilates shakes, providing a clean, sustained energy release that supports your fitness goals whilst keeping you feeling vital and strong.

Gentle Nutrition (For Children)

Sometimes, children struggle to maintain a healthy growth curve due to being fussy eaters, having high activity levels, or navigating medical challenges. In these sensitive cases, weight gain supplements for kids offer a brilliant solution.

These formulas are distinctly different from sports nutrition products. They are fortified with essential vitamins, minerals, and healthy fats necessary for brain and bone development, masking vital nutrients behind delicious, kid-friendly flavours. Always consult with a paediatrician before introducing any new nutritional programme to a child's diet.

A Reddit User r/ADHDparenting asking about weight gain supplements for child

We’ve been doing this for most of my 6 years olds life. We get carnation chocolate milk in the tub, and put 3 heaping tablespoons of the carnation in a cup. Pour several tablespoons of heavy cream over it (start with 1 and see where he balks at the taste after you try it a few times. Then pour around 6 oz of milk over it and use a frother to mix it up. He feels like it’s regular chocolate milk and it gets him an extra 400 calories or so.

Source: r/ADHDparenting (Reddit)

Clean and Premium Blends (For the Health-Conscious)

If your primary concern is the quality of your calories, finding the best weight gainer comes down to ingredient transparency. Clean weight gain powder options eschew artificial sweeteners, dyes, and cheap maltodextrin in favour of whole food carbohydrate sources like sweet potato, oats, and grass-fed protein.

Transparent Labs is renowned for this approach, providing some of the best weight gain supplements on the market for those who want to bulk up without compromising their gut health or dietary ethos. Paired with a trusted favourite like Optimum Nutrition, these products ensure that every extra calorie you consume serves a functional, healthy purpose.

Weight Gain Supplement Picks 2026

To help you navigate your choices, explore our top picks for 2026, featuring innovative formulas tailored for varying needs, from hardcore bulking to clean, everyday nutritional support.

Product 

Brand

Best For

Why It Stands Out

Serious Mass Gainer

Optimum Nutrition

Reliable, clean bulking

The industry standard; offers a high protein to carb ratio (1:5) with 25+ added vitamins and minerals.

Mass Gainer

Transparent Labs

Health conscious athletes

100% grass fed whey, zero artificial sweeteners, colours, preservatives and whole food carbohydrate sources.

Super Mass Gainer

Dymatize

Hardgainers & skinny guys

Exceptionally high calorie count per serving with incredibly rich, dessert-like flavours.

Cell Tech

MuscleTech

Intense muscle growth

Scientifically backed formulas are often infused with creatine to maximise strength alongside size.

Frequently Asked Questions About Weight Gain Supplements

  • How long does a weight gainer take to see results?

    Results are highly dependent on your overall diet and training regimen. However, if you are consistently in a caloric surplus while using a weight gainer, you can generally expect to see noticeable changes on the scale within 2 to 4 weeks.

  • Can weight gain supplements improve my weight?

    Yes, absolutely. To gain weight, you must consume more calories than you burn. These supplements provide a highly convenient, liquid form of dense calories and nutrients, making it significantly easier to hit that required surplus without feeling uncomfortably full.

  • What should I consider before buying a weight gain supplement?

    You should evaluate your specific goals, dietary restrictions, and current caloric intake. Look closely at the macronutrient profile (ratio of protein to carbohydrates to fats) and check the ingredient list to ensure it aligns with your digestive tolerance. Avoid products heavily reliant on added sugars.

  • How do I choose the right weight gain supplement?

    Start by identifying your category. If you have a very fast metabolism, a heavy-duty mass gainer protein powder is ideal. If you are a woman looking for lean curves, opt for targeted weight gain supplements for women. Always prioritise brands that utilise third-party testing and transparent labelling for the safest and most effective results.