The primary distinction between mass gainer and protein powders lies in their macronutrient composition. Mass gainers typically contain a higher proportion of carbohydrates and fats, which provide a significant calorie boost.

Mass gainers, like BigMuscles Mamoth Gainer, pack a punch of protein, carbs, and fats to support weight gain and muscle growth. In contrast, protein powder focuses on high-quality protein with minimal carbs and fats, ideal for lean muscle building and recovery.