Our rankings are generated through the algorithmic analysis of thousands of customer reviews about products, brands, merchant customer service levels, popularity trends, and more. We use advanced technology, including AI, to help process and organize this information at scale, supporting our analysis with greater speed and consistency. The rankings reflect our opinion and should be a good starting point for shopping.
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10 Best sports nutrition weight gainers of 2026
Save up to 14% off
Best Choice1
Optimum Nutrition9.8Exceptional
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Chocolate, 6LB | Weight Gainer Protein Powder, Mass Gainer with Whey Protein, Creatine, Glutamine, BCAAs, Vitamins & Minerals, Easy Mixing
14% Off-
Carbohydrates Content:Over 250 grams per 2-scoop serving
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Flavor:Chocolate
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Form:Powder
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Net Weight:6 Pound
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Protein Content:50 grams per 2-scoop serving
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Value for Money2
Optimum Nutrition9.7Exceptional
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 6LB | Weight Gainer Protein Powder, Mass Gainer with Whey Protein, Creatine, Glutamine, BCAAs, Vitamins & Minerals, Easy Mixing
11% Off-
Carbohydrates Content:N/A
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Flavor:Vanilla
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Form:N/A
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Net Weight:6 Pound
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Protein Content:N/A
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3
Optimum Nutrition9.4Excellent
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 12LB
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Carbohydrates Content:N/A
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Flavor:Vanilla
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Form:Powder
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Net Weight:12 Pound
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Protein Content:N/A
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4
Dymatize9.3Excellent
Dymatize Super Mass Gainer, 52g Protein Powder, Gourmet Vanilla, 6 lb | 1280 Calories, 245g Carbs, 10.7g BCAAs, Whey Protein + Casein, Amino Acids for Muscle Support, 1g Creatine, 8 Servings
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5
Optimum Nutrition9.0Excellent
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Chocolate 12LB
11% Off
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6
Optimum Nutrition8.7Very Good
Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 5 LB | Weight Gainer Protein Powder, High-Calorie Mass Gainer, 60g Protein per Serving, High Carbs, Vitamins & Minerals, Easy Mixing
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7
Dymatize8.6Very Good
Dymatize Super Mass Gainer 52g Protein Powder, Rich Chocolate, 6 lb | 1280 Calories, 245g Carbs, 10.7g BCAAs, Whey Protein + Casein, Amino Acids for Muscle Support, 1g Creatine, 8 Servings
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8
Optimum Nutrition8.3Good
Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 10 LB
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9
Dymatize8.2Good
Dymatize Super Mass Gainer, 52g Protein Powder, Rich Chocolate, 12 lb
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10
Optimum Nutrition8.1Good
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 3LB
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