CNP Pro Mass is a high quality calorie dense mass gain drink. In order to gain muscle mass and bodyweight, an increase in calories is essential. General gym users, hard gainers or those with a fast metabolism can struggle to gain size, creating a cycle of frustration which can include overtraining. We want you to have the tastiest, easiest method of putting mass on quickly so you feel motivated and excited to train & can see your efforts rewarded in the time scale you expect. CNP Pro Mass is a high quality blend of premium proteins, complex carbohydrates & smart fats but is low in sugar & contains less than 3% lactose making it kind on digestion.