Updated: June, 2025

10 Best Weight Gainers in Canada

1

NAKED

9.8

Exceptional

Chocolate Naked Mass - All Natural Chocolate Weight Gainer Protein Powder - 8lb Bulk, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,360 Calories - 11 Servings

Main highlights

ONLY FIVE INGREDIENTS: Naked Whey, Naked Casein, Organic Maltodextrin (made from gluten free organic tapioca), Organic Coconut Sugar, and Organic Raw Cacao. Chocolate Naked Mass contains no artificial sweeteners, flavors, or colors and is GMO Free, No rBGH or rBST, Soy Free and Gluten Free.

MULTI-PHASE CLEAN PROTEIN: All natural whey and casein provides your body with healthy amino acids to keep protein synthesis up throughout the day.

MAXIMUM NUTRITION: 50g of Protein, 251g of Carbs, 1,360 Calories, 11.6g of BCAAs (branched-chain amino acids) per serving.

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How do we rank?

How do we rank
Our AI-powered platform ranks products using multiple weighted factors from millions of products and user reviews across the web, providing the most valuable and real data. Higher scores rank first.
2

MAMMOTH

9.5

Excellent

MAMMOTH MASS: Weight Gainer, High Calorie Protein Powder Workout Smoothie Shake, Meal Replacement, Low Sugar, Whey Isolate Concentrate, Casein Protein Blend, Weight Training, High Protein 15 lb, Vanilla

Why we love it

High protein content per serving.

Effective for gaining lean mass.

Versatile for various recipes.

Main highlights

High Protein Content
Mammoth Mass offers 60 grams of protein per serving, ideal for muscle growth and recovery.

Ideal for Weight Gain
With over 1250 calories per serving, it's perfect for those looking to increase lean mass efficiently.

Versatile Use in Recipes
Praised for its versatility, it enhances smoothies, shakes, and baked goods.

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3

Mutant

9.4

Excellent

MUTANT MASS Weight Gainer Protein Powder with a Whey Isolate, Concentrate, and Casein Protein Blend, High-Calorie Shake, 2.27 kg – Triple Chocolate

Main highlights

Made with natural whole foods (barley, sweet potato, rolled oats, avocado, coconut oil, flaxseed, pumpkin seed and sunflower oil)

56 g of pure protein, 192 g of clean carbs, 12 g of fat

26.1 g of EAAs and 12.2 g of BCAAs (naturally present)

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4

MAMMOTH

9.2

Excellent

MAMMOTH MASS: Weight Gainer, High Calorie Protein Powder Workout Smoothie Shake, Meal Replacement, Low Sugar, Whey Isolate Concentrate, Casein Protein Blend, Weight Training, High Protein 15 lb, Chocolate

Main highlights

QUALITY NUTRITION: Putting on size requires a balance of heavy training and quality nutrition. Because everyone’s a little different, some have a harder time packing on muscle than others. Mammoth Mass is a high-protein powdered mix delivering significant amount of supplemental protein, carbs, vitamins and minerals to build on the amount you're getting from a balanced diet of food.

MUSCLE MASS FORMULA: MAMMOTH MASS Weight Gainer provides more protein, better carbs and far less sugar giving you more of what you want in a potent mass muscle building formula. With 60 grams of the finest whey protein isolate, whey protein concentrate, micellar casein and calcium caseinate available.

CALORIES: To gain just one extra pound, you need to consume approximately 3,500 calories-above and beyond what you normally consume through foods, beverages, and supplements. Pro Gainer provides over 1250 calories per serving. By adding just one serving to your daily routine, you can begin to experience an increase in lean mass within the first week.

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5

Mutant

9.0

Excellent

Mutant Mass Extreme Gainer Whey Protein Powder, Build Muscle Size & Strength with High-Density Clean Calories, (Triple Chocolate, 6 LBS)

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.

CRASH WEIGHT GAIN | Made for extreme hard gainers looking to add serious MASS!

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6

ALLMAX

8.8

Very Good

ALLMAX Nutrition - QUICKMASS - Weight Gainer & Rapid Gain Catalyst, Chocolate, 10 Pound, 10 Lb

Main highlights

Now with 60% Less Sugar Only 3g per Scoop (Or 12g per Serving - Less than 5% )

New & Improved Flavor Technology: The Best Tasting QUICKMASS we've ever made!

Made with several sources of Complex Carbs including Sweet Potato, Oat Fiber & Quinoa!

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7

Generic

8.5

Good

Natural Fast Weight Gain Tablet For Both Men Women Weight Plus Weight Gainer Pills Increase Appetite Enhancer 60 Pills

Main highlights

Weight Plus Tablet Increase Appetite Enhancer

Weight Gain Tablet For Both Men Women

Natural Fast Weight Gain Tablet

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8

Six Star

8.4

Good

Six Star Mass Gainer Protein Powder, Six Star Mass Gainer, Muscle Builder Whey Protein Powder and Creatine Monohydrate, Max Protein Weight Gainer for Men and Women, Creatine Supplements, Chocolate, 4.36 lbs

Main highlights

Six Star Mass Gainer isn't loaded with sugar and fat. In fact, it delivers more of the high-quality carbohydrates and calories

Six Star Mass Gainer is a powerful weight gain formula engineered to help athletes get the nutrients they need to grow bigger and stronger

Increases Muscle Strength and Performance, Mega-Dosed with 45g of Protein and 189g of Complex Carbs

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9

Sunshine Biopharma

8.1

Good

Extreme Mass weight gainer muscle builder, 10 lb (4.54 kg) with less sugar for intense workout training made of high calorie fortified whey protein (Chocolate)

Main highlights

Supports Lean Muscle Growth & Strength Gains; The high-protein formula provides essential amino acids to increase muscle size and strength while keeping fat gain in check.

Optimal Nutrition for Performance & Recovery; A precise blend of whey protein, fast-digesting carbs, and essential micronutrients fuels workouts, prevents deficiencies, and sustains peak athletic performance.

Accelerates Recovery & Reduces Muscle Breakdown; BCAAs, creatine, and glutamine promote rapid muscle repair and minimize post-workout soreness, ensuring you’re ready for your next training session.

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10

Sunshine Biopharma

7.8

Good

Extreme Mass gainer muscle builder, 5 lbs (2.27 kg) low sugar high calories for intense workouts (Chocolate)

Main highlights

Supports Lean Muscle Growth & Strength Gains; The high-protein formula provides essential amino acids to increase muscle size and strength while keeping fat gain in check.

Optimal Nutrition for Performance & Recovery; A precise blend of whey protein, fast-digesting carbs, and essential micronutrients fuels workouts, prevents deficiencies, and sustains peak athletic performance.

Accelerates Recovery & Reduces Muscle Breakdown; BCAAs, creatine, and glutamine promote rapid muscle repair and minimize post-workout soreness, ensuring you’re ready for your next training session.

More info

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