Optimum Nutrition Serious Mass Weight Gainer (Chocolate Peanut Butter) 6 lb vs Mutant Mass Weight Gainer Protein Powder – Strawberry Banana

Overall winner: Optimum Nutrition Serious Mass Weight Gainer (Chocolate Peanut Butter) 6 lb

Key Differences

Optimum Nutrition (A) offers a much higher stated carbs and protein per 2-scoop serving (250 g carbs and 50 g protein) and is tagged as calorie-dense, while Mutant (B) emphasizes high protein and taste with reports of possible stomach sensitivity and variable calories per serving. Pick A if you want the highest-calorie, high-protein per serving profile; pick B if taste and a different flavor profile (strawberry-banana) with slightly fewer reviews matter more to you

Optimum Nutrition Serious Mass Weight Gainer (Chocolate Peanut Butter) 6 lb

Optimum Nutrition Serious Mass Weight Gainer (Chocolate Peanut Butter) 6 lb

Optimum Nutrition • ★ 4.3/5 • Mid-Range

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

Pros

  • high-calorie weight gainer
  • protein and carbohydrate per serving
  • includes vitamins and minerals for immune support
  • versatile—blend with fruits

Cons

  • large serving size per serving
  • mixed reviews on mixability
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Mutant Mass Weight Gainer Protein Powder – Strawberry Banana

Mutant Mass Weight Gainer Protein Powder – Strawberry Banana

Mutant • ★ 3.9/5 • Mid-Range

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

Pros

  • high protein content per serving
  • large carbohydrate mix for mass gain
  • includes BCAAs and EAAs
  • gourmet taste

Cons

  • calorie per serving may vary by user
  • some users report stomach sensitivity
  • mixed reviews on calorie content
Check current price on Amazon →

Head-to-Head

CriteriaWinner
Price Tie
Durability Optimum Nutrition
Versatility Optimum Nutrition
User Reviews Optimum Nutrition