Optimum Nutrition (ON) Serious Mass 1kg | 50g Protein | Vanilla Flavour | Weight Gain | Muscle Building

Mix 2 Scoops Of The Powder Into 24 Fluid Ounces (710Ml) Of Cold Water Or Milk Using An Electric Blender. This Allows You To Add In Fruits, Peanut Butter And Other Calorie-Contributing Foods. Tip: New Users Should Start With A 1-Scoop Half Serving. Use Post-Workout And/Or Between Meals To Add Calories, Carbs And Protein To Your Healthy, Balanced Diet.