Size 1kg servings 12 x 83g servings what is everlast mass gainer and how does it work carbs 642g protein 124g fat 06g kcal 311 everlast mass gainer is a food supplement with sweetener ideal for those looking to increase their daily calorie intake from this carbohydrate and protein blend it boats 17 vitamins and minerals with bcaas creatine hmb choline inositol and l glutamine every 83g serving is a great source of carbohydrate and protein protein contribute