BSN True Mass® 1200 is called such because it delivers 1200 of nutrient-dense calories that consist of quality protein, plus high-grade carbohydrates. It’s the ultimate mass formula, engineered for the true hard-gainer in need of serious caloric support. Whilst a structured training plan is essential, targeted nutrition is vital. In order to gain size, a positive energy balance is required. The way to achieve this is by ensuring an intake of quality calories which will fuel your success. Food should always be the first port of call, but supplements are designed to help you achieve nutritional balance.