Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Chocolate, 6 Pound (Packaging May Vary)

Serious Mass from Optimum Nutrition is a high-calorie weight gain formula designed to help you achieve your significant muscle mass goals.

With 1200 calories per serving, this product provides the energy you need to fuel your workouts and support muscle recovery.

Whether you're looking to bulk up or simply add some serious mass, Serious Mass is the perfect choice.

Its protein-packed formula helps build lean muscle mass, while its low fat content ensures that you get the calories you need without any unwanted fat.

Plus, with three convenient serving sizes, you can customize your dosage to fit your individual needs.

Don't let a lack of calories hold you back from reaching your fitness goals - try Serious Mass today and start seeing real results!