Mass Fusion Gainer-Extreme Chocolat - 22 Serv _ 5.44 KGNutrabolics Mass Fusion Gainer Extreme Chocolat 22 Serv _ 5. 44 KG Putting on size requires heavy training combined with a high protein and calorie intake. Where some people build muscle easily, others will burn through nutrition sources rapidly and have a harder time turning their physical efforts into body mass. Perfect for athletes with a fast metabolism or hard gainers who struggle with weight gain, MASS FUSION contains 950 clean calories per