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The advanced Macrobolic Nutrition profile in MHP's Up Your Mass provides the precise 45 / 35 / 20 ratio of macro nutrients (carbohydrates, protein, fat) your body needs to create tremendous gains in muscle size and strength - without added fat! Whether you're a pro athlete who needs to pack on mass for an upcoming event, or a teenage hardgainer who has difficulty gaining weight, Up Your Mass can help you blast through plateaus that were previously unconquerable with traditional weight gainers. MHP's "Every Calorie Counts" credo is being proven by the many pro athletes who use Up Your Mass daily.