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  5. Weight Gain Supplements

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Get The Best Weight Gain Supplements Online in Iceland

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10% AF
Natural Weight Gain Supplements Fat Gainer Muscle Builder For Men Women 240Pills
US Verslun
super health

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

ISK 14276 15778

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 Verslun
Clear-Biotic

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18% AF
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Appetite Booster Weight Gain Stimulant Supplement Eat More For Underweight Adult

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12% AF
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US Verslun
Scale Nutrition

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ISK 5507 6239

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US Verslun
nature supplements

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nature supplements

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body grow

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

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US Verslun
appeton

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US Verslun

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US Verslun
nutrex

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ISK 15509

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

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ISK 17206

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

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ISK 26765

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US Verslun
appeton weight gain

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13% AF
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US Verslun
Supragenix

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900+ bought

ISK 11729 13557

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

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

ISK 8889

6% AF
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US Verslun
naturade

Naturade, Weight Gain, Vanilla, 20.3 oz 576 g, 12 Servings, Gluten Free
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ISK 5961 6326

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

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

ISK 12402 13272

6% AF
HealthTone Health Tone Herbal Weight Gain Capsules 90 Caps 500 g Pack of 3
US Verslun
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6% AF
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US Verslun
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US Verslun
appeton

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US Verslun
appeton

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8% AF
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nature supplements

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US Verslun
appeton

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US Verslun
NGL

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400+ bought

ISK 5525

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

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ISK 12035

6% AF
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APPETON WEIGHT GAIN CHOCOLATE 900G
US Verslun
appeton

APPETON WEIGHT GAIN CHOCOLATE 900G

ISK 31261

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 Verslun
Optimum Nutrition

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ISK 34966

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

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Forzagen Lean Gainer Premium Mass Builder | Mass Gainer Protein Powder for Men & Women | High Calorie Protein, Weight Gain, Bulk, Muscle Building Supplement | Dutch Chocolate, 12 lbs. 16+ Servings
US Verslun
Forzagen

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200+ bought

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Clear-Biotic

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BSN TRUE-MASS Weight Gainer, Muscle Mass Gainer Protein Powder, Vanilla Ice Cream, 10.25 Pound
US Verslun
BSN

BSN TRUE-MASS Weight Gainer, Muscle Mass Gainer Protein Powder, Vanilla Ice Cream, ...
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ISK 19199

Endura Mass Weight Gainer 500g Choco | Protein, Carbs, Vitamins, 16 Serv
US Verslun
endura

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ISK 8315

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US Verslun
MuscleMeds

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200+ bought

ISK 4912

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

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

ISK 7250

BodyTech Prime Mass - High-Calorie Mass Gainer - Supports Muscle Growth & Weight Gain - Chocolate 12 lb, 17 Servings
US Verslun
BodyTech

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US Verslun
VH Nutrition

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ISK 5721

Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Vanilla, 3 Pound Packaging May Vary
US Verslun
Optimum Nutrition

Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin ...
4.1

ISK 6784

BodyTech Prime Mass - High-Calorie Mass Gainer - Supports Muscle Growth & Weight Gain - Vanilla 12 lb, 17 Servings
US Verslun
BodyTech

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4.4

ISK 20879

NutraBio Extreme Mass Gainer Protein Powder, 53G Protein, Clean Weight Gainer, Increase Muscle Mass, Full Spectrum Amino Acid - Strawberry Pastry, 6 Pound
US Verslun
NutraBio

NutraBio Extreme Mass Gainer Protein Powder, 53G Protein, Clean Weight Gainer, ...
4.9

ISK 13295

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US Verslun

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

ISK 2396

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

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

ISK 44108 46875

Shop Premium Weight Gain Supplements Online with Ubuy Iceland

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 Iceland 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.