About the product
- Healthy Weight Gain: GNC Pro Performance Weight Gainer is packed with targeted macros for your healthy weight gain goals, plus great taste from all-natural colors and flavors.
- Dynamic Calories: Features a high-calorie, BCAA-rich formula designed to fuel your body with macros while replenishing energy stores.
- Premium Protein: Delivers 50G of protein from whey protein concentrate and micellar casein providing fast, medium, and slow-releasing protein and all 20 amino acids needed to build muscle mass.
- Banned Substance Tested: Trusted by athletes around the world, our formula is third-party tested for purity and potency
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