Arnold Schwarzenegger teamed up with scientists and together they created a revolutionary weight gainer. In order to stimulate rapid muscle growth (and do this without spurring fat development) it takes both calories and precise nutrient partitioning to create the muscle building environment an athlete needs. A whole new kind of muscle building. Arnold Iron Mass utilizes a 5-stage Mass Delivery System, comprised of advanced protein technology, elite complex carbs, healthy fats, cutting edge performance ingredients and a balanced digestive blend—plus it’s low in sugar and tastes delicious!*

• 24 g of Ultra-Microfiltered Whey Protein
• Supports Muscle Recovery and Growth
• Great-Tasting & Low Carb Formula