10 Best weight gainer supplements in Canada

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Last Updated - 2026/04/02

Best Choice

01
Sunshine Biopharma

Sunshine Biopharma’s Extreme Mass Gainer, 12 Servings (375g), 1582 Cal & 60g Protein, Bulk High-Calorie Serving for Muscle Builder & Weight Gainer

9.3 Taste

9.3 worth the money
Main highlights

SWEETENERS: Extreme Mass Gainer is sweetened with Stevia, a natural sweetener very commonly used. To equilibrate the taste, it contains a minute amount of Sucralose (10 mg). All these products are approved by Health Canada and the FDA, and the major scientific studies proved them as safe and armless to human
HYPERTROPHY ARCHITECTURE: The 10lb foundation is engineered for the athlete committed to a total physiological transformation. Achieving massive scale requires a consistent, multi-week caloric surplus that resets your body’s weight set-point
GLYCOGEN RESYNTHESIS MATRIX: Loaded with complex carbohydrates to rapidly replenish depleted muscle fuel tanks. By ensuring your glycogen levels are fully saturated, you prevent the body from entering a catabolic, muscle-wasting state
60G PROTEIN: Build and repair muscle with a heavy-duty 60g dose of protein per shake. This high-potency amino acid profile ensures that your 1,500+ calorie intake is utilized for maximum muscle protein synthesis and recovery, rather than just empty caloric storage
1582 CALORIES PER SERVING: Stop struggling to hit your caloric surplus. Each massive 375g serving delivers 1,582 nutrient-dense calories, engineered to force your body into a growth state. This is the literal solution for hard gainers and athletes with high-intensity caloric demands who cannot meet their needs through whole food alone
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9.8

Exceptional

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02
Sunshine Biopharma

Sunshine Biopharma’s Extreme Mass Gainer, 12 Servings (375g), 1582 Cal & 60g Protein, Bulk High-Calorie Serving for Muscle Builder & Weight Gainer
Main highlights

SWEETENERS: Extreme Mass Gainer is sweetened with Stevia, a natural sweetener very commonly used. To equilibrate the taste, it contains a minute amount of Sucralose (10 mg). All these products are approved by Health Canada and the FDA, and the major scientific studies proved them as safe and armless to human
HYPERTROPHY ARCHITECTURE: The 10lb foundation is engineered for the athlete committed to a total physiological transformation. Achieving massive scale requires a consistent, multi-week caloric surplus that resets your body’s weight set-point
GLYCOGEN RESYNTHESIS MATRIX: Loaded with complex carbohydrates to rapidly replenish depleted muscle fuel tanks. By ensuring your glycogen levels are fully saturated, you prevent the body from entering a catabolic, muscle-wasting state
60G PROTEIN: Build and repair muscle with a heavy-duty 60g dose of protein per shake. This high-potency amino acid profile ensures that your 1,500+ calorie intake is utilized for maximum muscle protein synthesis and recovery, rather than just empty caloric storage
1582 CALORIES PER SERVING: Stop struggling to hit your caloric surplus. Each massive 375g serving delivers 1,582 nutrient-dense calories, engineered to force your body into a growth state. This is the literal solution for hard gainers and athletes with high-intensity caloric demands who cannot meet their needs through whole food alone
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9.7

Exceptional

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03
Mutant

Mutant Mass Extreme Gainer Whey Protein Powder Build Muscle Size and Strength High Density Clean Calories 6 lbs Vanilla Ice Cream

8.4 worth the money

8.2 Taste
Main highlights

MADE WITH NATURAL WHOLE FOODS | Barley, sweet potato, rolled oats, avocado, coconut oil, pumpkin seeds.
EXTREMELY HIGH CALORIE WEIGHT GAIN | 1,270 calories per serving (4 scoops) mixed two cups of 1% milk. Two daily servings deliver 2,540 calories.
EACH SERVING DELIVERS | 46 grams of 100% pure whey protein, 255 grams of carbohydrates, 7.5 grams of fat per serving (4 scoops) mixed with two cups of 1% milk. Naturally high in BCAAs, EAAs, Glutamine and other amino acids needed to support muscle growth from hard training.
CRASH WEIGHT GAIN | Made for extreme hard gainers looking to add serious MASS!
100% GOURMET TASTE NPN 80094546
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9.6

Exceptional

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Value for Money

04
Mutant

Mutant Mass Extreme Gainer Whey Protein Powder Build Muscle Size and Strength High Density Clean Calories 6 lbs Vanilla Ice Cream

8.4 worth the money

8.2 Taste
Main highlights

MADE WITH NATURAL WHOLE FOODS | Barley, sweet potato, rolled oats, avocado, coconut oil, pumpkin seeds.
EXTREMELY HIGH CALORIE WEIGHT GAIN | 1,270 calories per serving (4 scoops) mixed two cups of 1% milk. Two daily servings deliver 2,540 calories.
EACH SERVING DELIVERS | 46 grams of 100% pure whey protein, 255 grams of carbohydrates, 7.5 grams of fat per serving (4 scoops) mixed with two cups of 1% milk. Naturally high in BCAAs, EAAs, Glutamine and other amino acids needed to support muscle growth from hard training.
CRASH WEIGHT GAIN | Made for extreme hard gainers looking to add serious MASS!
100% GOURMET TASTE NPN 80094546
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9.5

Excellent

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05
Sunshine Biopharma

Sunshine Biopharma’s Extreme Mass Gainer, 6 Servings (375g), 1582 Cal & 60g Protein, a Strategic Serving Count for Intense Workout & Muscle building
Main highlights

SWEETENERS: Extreme Mass Gainer is sweetened with Stevia, a natural sweetener very commonly used. To equilibrate the taste, it contains a minute amount of Sucralose (10 mg). All these products are approved by Health Canada and the FDA, and the major scientific studies proved them as safe and armless to human
PROFESSIONAL UTILITY DESIGN: The Extreme Mass 5lb focuses on physiological output. It delivers the industry's highest calorie-per-serving ratio in a performance-first package, engineered for the serious trainee who demands a functional, high-density substrate to support extreme physical exertion
INTENSIVE RECOVERY: Highly recommended during "Deload" weeks or immediately following maximal-effort competition. Force-feed nutrients into exhausted muscle tissue to prevent post-strain catabolism and jumpstart the remodeling process
60G PROTEIN: Every serving delivers a massive 60g of high-bioavailability protein to activate mTORC1 signaling and ensure structural repair. By pairing a complete amino profile with high-density carbohydrates, this formula directs your caloric surplus toward skeletal muscle hypertrophy rather than adipose storage
1582 CALORIES PER SERVING: Stop struggling to hit your caloric surplus. Each massive 375g serving delivers 1,582 nutrient-dense calories, engineered to force your body into a growth state. This is the literal solution for hard gainers and athletes with high-intensity caloric demands who cannot meet their needs through whole food alone
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9.4

Excellent

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06
Mutant

Mutant Mass Extreme Gainer Whey Protein Powder Build Muscle Size and Strength High Density Clean Calories 12 lbs Vanilla Ice Cream

8.7 worth the money

8.2 Taste
Main highlights

MADE WITH NATURAL WHOLE FOODS | Barley, sweet potato, rolled oats, avocado, coconut oil, pumpkin seeds.
EXTREMELY HIGH CALORIE WEIGHT GAIN | 1,270 calories per serving (4 scoops) mixed two cups of 1% milk. Two daily servings deliver 2,540 calories.
EACH SERVING DELIVERS | 46 grams of 100% pure whey protein, 255 grams of carbohydrates, 7.5 grams of fat per serving (4 scoops) mixed with two cups of 1% milk. Naturally high in BCAAs, EAAs, Glutamine and other amino acids needed to support muscle growth from hard training.
CRASH WEIGHT GAIN | Made for extreme hard gainers looking to add serious MASS!
100% GOURMET TASTE
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9.3

Excellent

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07
Mutant

Mutant Mass Extreme Gainer Whey Protein Powder Build Muscle Size and Strength High Density Clean Calories 12 lbs Vanilla Ice Cream

8.7 worth the money

8.2 Taste
Main highlights

MADE WITH NATURAL WHOLE FOODS | Barley, sweet potato, rolled oats, avocado, coconut oil, pumpkin seeds.
EXTREMELY HIGH CALORIE WEIGHT GAIN | 1,270 calories per serving (4 scoops) mixed two cups of 1% milk. Two daily servings deliver 2,540 calories.
EACH SERVING DELIVERS | 46 grams of 100% pure whey protein, 255 grams of carbohydrates, 7.5 grams of fat per serving (4 scoops) mixed with two cups of 1% milk. Naturally high in BCAAs, EAAs, Glutamine and other amino acids needed to support muscle growth from hard training.
CRASH WEIGHT GAIN | Made for extreme hard gainers looking to add serious MASS!
100% GOURMET TASTE
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9.2

Excellent

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08
Sunshine Biopharma

Sunshine Biopharma’s Extreme Mass Gainer, 12 Servings (375g), 1582 Cal & 60g Protein, Bulk High-Calorie Serving for Muscle Builder & Weight Gainer

9.3 Taste

9.3 worth the money
Main highlights

SWEETENERS: Extreme Mass Gainer is sweetened with Stevia, a natural sweetener very commonly used. To equilibrate the taste, it contains a minute amount of Sucralose (10 mg). All these products are approved by Health Canada and the FDA, and the major scientific studies proved them as safe and armless to human
HYPERTROPHY ARCHITECTURE: The 10lb foundation is engineered for the athlete committed to a total physiological transformation. Achieving massive scale requires a consistent, multi-week caloric surplus that resets your body’s weight set-point
GLYCOGEN RESYNTHESIS MATRIX: Loaded with complex carbohydrates to rapidly replenish depleted muscle fuel tanks. By ensuring your glycogen levels are fully saturated, you prevent the body from entering a catabolic, muscle-wasting state
60G PROTEIN: Build and repair muscle with a heavy-duty 60g dose of protein per shake. This high-potency amino acid profile ensures that your 1,500+ calorie intake is utilized for maximum muscle protein synthesis and recovery, rather than just empty caloric storage
1582 CALORIES PER SERVING: Stop struggling to hit your caloric surplus. Each massive 375g serving delivers 1,582 nutrient-dense calories, engineered to force your body into a growth state. This is the literal solution for hard gainers and athletes with high-intensity caloric demands who cannot meet their needs through whole food alone
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9.1

Excellent

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09
ALLMAX

ALLMAX Nutrition - QUICKMASS - NEW SIZE - Weight Gainer & Rapid Gain Catalyst, Chocolate, 3.5 Pound, 3.5 Lb
Main highlights

RESEARCH-PROVEN RESULTS: Clinically studied to significantly boost fat-free mass and chest size within 8 weeks, ideal for serious athletes and fitness enthusiasts looking to maximize muscle gains.
RAPID MASS BUILDING FORMULA: Delivers 1010 calories and 64 grams of sustained-release protein per serving, scientifically engineered to help quickly increase lean muscle mass.
PREMIUM CLEAN-CARB BLEND: Features a specialized blend of slow-release carbohydrates including sweet potato, oats, quinoa, and soluble corn fiber, ensuring consistent energy without sugar crashes.
FORTIFIED WITH VITAMINS & MINERALS: Contains 20 essential vitamins and minerals, providing comprehensive nutritional support for enhanced muscle growth and recovery.
EASY-TO-MIX & DELICIOUS: QuickMass is perfectly formulated to mix effortlessly with water, delivering a creamy, delicious shake without the need for milk.
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9.0

Excellent

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10
ALLMAX

ALLMAX Nutrition - QUICKMASS - NEW SIZE - Weight Gainer & Rapid Gain Catalyst, Chocolate, 3.5 Pound, 3.5 Lb
Main highlights

RESEARCH-PROVEN RESULTS: Clinically studied to significantly boost fat-free mass and chest size within 8 weeks, ideal for serious athletes and fitness enthusiasts looking to maximize muscle gains.
RAPID MASS BUILDING FORMULA: Delivers 1010 calories and 64 grams of sustained-release protein per serving, scientifically engineered to help quickly increase lean muscle mass.
PREMIUM CLEAN-CARB BLEND: Features a specialized blend of slow-release carbohydrates including sweet potato, oats, quinoa, and soluble corn fiber, ensuring consistent energy without sugar crashes.
FORTIFIED WITH VITAMINS & MINERALS: Contains 20 essential vitamins and minerals, providing comprehensive nutritional support for enhanced muscle growth and recovery.
EASY-TO-MIX & DELICIOUS: QuickMass is perfectly formulated to mix effortlessly with water, delivering a creamy, delicious shake without the need for milk.
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8.9

Very Good

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