What is Hard Gainer Extreme? Hard Gainer Extreme has over 440 calories per 100g serving with a blend of 4 different protein sources which include whey protein concentrate milk protein concentrate hydrolysed whey protein & calcium caseinate. Hard Gainer Extreme Benefits Hard Gainer Extreme provides 35g of protein which will contribute to the growth & maintenance of lean mass. This also contains a combination of low & high GI carbohydrates which include fructose waxy maize starch & maltodextrin. In addition to these lean mass building blends there is added Flax Seed & Inulin. Who is Hard Gainer Extreme Suitable for? Hard Gainer Extreme is ideal for those looking to increase daily calorie intake & protein intake. It is recommended to consume Hard Gainer Extreme throughout the day for a convenient way to increase calorie consumption.