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Ultimate Muscle Building and Weight Gainer Protein Powder: Optimum Nutrition (ON) Serious Mass, 50g Protein, Immune Support with Vitamin C, Zinc, and Vitamin D – Strawberry Flavor, 6lbs (2.72kg)

Optimum Nutrition (ON) Serious Mass: The Ultimate Protein Powder for Muscle Building and Weight Gain


Are you struggling to gain muscle and achieve your weight gain goals? Look no further than Optimum Nutrition (ON) Serious Mass. Packed with high-quality protein, essential vitamins, and minerals, this protein powder is designed to help you build muscle and support your immune system. In this article, we will explore the benefits of ON Serious Mass and how it can help you reach your fitness goals.

Key Features of ON Serious Mass

1. High Protein Content

ON Serious Mass contains a whopping 50 grams of protein per serving. Protein is essential for muscle growth and repair, making it a crucial component of any muscle-building regimen.

2. Essential Vitamins and Minerals

In addition to protein, ON Serious Mass is fortified with key vitamins and minerals such as Vitamin C, Zinc, and Vitamin D. These nutrients play a vital role in supporting your immune system and overall health.

3. Weight Gainer Formula

For those struggling to gain weight, ON Serious Mass is the perfect solution. With its high-calorie content, this protein powder helps you consume the extra calories needed to promote weight gain and muscle growth.

Frequently Asked Questions

Q: How should I consume ON Serious Mass?

A: Mix 2 scoops of ON Serious Mass with water or milk and consume between meals, after workouts, or before bed for optimal results.

Q: Can women use ON Serious Mass?

A: Yes, ON Serious Mass can be used by both men and women looking to gain muscle and increase their weight.

Q: Are there any side effects?

A: When consumed as directed, ON Serious Mass is generally safe. However, individuals with specific dietary restrictions or medical conditions should consult their healthcare provider before use.


Optimum Nutrition (ON) Serious Mass is the ultimate protein powder for muscle building and weight gain. With its high protein content, essential vitamins, and minerals, this product provides the necessary nutrients to support your fitness goals. Whether you are a bodybuilder, athlete, or simply looking to gain weight, ON Serious Mass is the perfect addition to your routine. Try it today and witness the incredible results for yourself!