If you're chasing fast, clean size gains, Zombie Labs GAINZ is a top-tier mass gainer packed with over 673 calories per serve, plus creatine, BCAAs, glutamine, and digestive enzymes. Designed for hard gainers and serious lifters, GAINZ delivers results without the bloat or bullshit. Each serve of GAINZ delivers 673 calories with 35.2g of protein, 100.3g of carbs, and 14.7g of fat. Most users double scoop it for over 1830 calories when mixed with 1L of low-fat milk — making it one of the most effective mass gainers for extreme bulking. GAINZ is a clean mass gainer made with wholefood carbs (oats, sweet potato), a 5-source protein blend, and healthy fats from coconut oil, MCTs, and olive oil. It avoids junk fillers and focuses on building lean muscle mass, not unwanted fat. Unlike most generic weight gain powders, GAINZ includes a full strength formula: 3g creatine, 3g BCAAs (2:1:1), glutamine, glycine, and DigeZyme digestive enzymes — all built in. No extra tubs needed. No weak doses. Just size, strength, and performance in every shake. The best time to take a mass gainer like GAINZ is post-workout, between meals, or before bed — anytime you need a heavy calorie hit. Consistency is key, and GAINZ is designed to help you hit your daily intake fast, without forcing down extra meals.