Best Sports Nutrition Weight Gainers Under $100 (2026)
We ranked products under $100 by value score using nutrition facts (calories/protein per serving), ingredient quality, user ratings, and retail price-to-serving metrics
This roundup evaluates sports nutrition weight gainers priced under $100, focusing on calorie density, macronutrient profiles, ingredient transparency, and overall value. Picks were chosen by comparing product nutrition facts, brand reputation, user ratings, and price-to-calorie/protein ratios to highlight options that offer strong mass-gaining support for the money
Top Picks
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1
Optimum Nutrition Serious Mass Weight Gainer (Chocolate Peanut Butter) 6 lb
Weight gainer powder with high calories, protein, and carbs plus vitamins and minerals for immune support. Customers note effective weight gain and good taste; mixability varies
- 1,200+ calories per 2-scoop serving
- 50 g protein per serving
- 250 g carbohydrates per serving
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2
NOW Foods Carbo Gain Maltodextrin Powder
Carbo Gain is a maltodextrin-based powder for energy production and weight support. It’s a fast-absorbing complex carbohydrate derived from non-GMO corn, with user notes highlighting ease of mixing and energy during long workouts
- maltodextrin-based energy source
- easy-to-digest glucose polymers
- trusted GMP quality assurance
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3
Dymatize Super Mass Gainer Fruity Pebbles 6 lb
Mass gainer protein powder with 1290 calories and 52g protein per serving, designed to support muscle gains. Customers praise taste and mixability, though some question protein content
- 52g protein per serving
- 1290 calories per serving
- fast and slow digesting protein blend
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4
Optimum Nutrition Serious Mass Weight Gainer Powder Banana
Optimum Nutrition Serious Mass is a high-calorie weight gainer with 50 g protein, 250+ g carbohydrates, and immune-supporting vitamins and minerals. Customers note good taste and effective weight gain, with mixed mixability and large serving size
- heavy calorie and carb content
- substantial protein per serving
- immune-supporting vitamins and minerals
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5
Muscle Milk Pro Series Gainer Protein Powder Vanilla Creme
Muscle Milk Pro Series Gainer protein powder with 32g protein, 109g carbs, and 650 calories per serving. Customers note strong weight gain results and good mixability
- 32g protein per serving
- 650 calories per serving
- vanilla creme flavor
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6
Build-XT Daily Muscle Builder & Performance Enhancer
Build-XT supports muscular gains and energy during workouts, aligned with training and nutrition. Customers report increased strength, improved performance, and reduced soreness
- customer-reported energy boost
- strength gains feedback
- positive value-for-money perception
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7
Dymatize Super Mass Gainer Protein Powder Rich Chocolate
Muscle-building weight gainer with 52g protein per serving and 1,280 calories. Customers note strong taste and effective muscle gains, with mixed feedback on mixability
- 52g protein per serving
- 1,280 calories per serving
- contains whey, isolate, and casein
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8
1200mg Beta Ecdysterone Supplement
Plant-based ecdysterone supplement supports lean muscle mass and recovery. Users note enhanced gym performance and quicker strength gains
- 1200 mg per serving
- 98% purity
- plant-based source
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9
Mutant Mass Weight Gainer Protein Powder – Strawberry Banana
High-calorie protein powder with a whey blend and complex carbs for mass gain. Users note strong taste and solid value, with mixed reports on calorie per serving
- 1100 calories per serving
- 56 g protein per serving
- 26.1 g EAAs and 12.2 g BCAAs
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10
Mutant Mass Gainer Cookies and Cream 5 Pound
Mass gainer with 56 g protein, 192 g carbs and 1100 calories per serving. Customer note: great taste and effective for muscle gains, with mixability in milk or water
- 1100 calories per serving
- 56 g protein per serving
- natural whole-food ingredients