Weight Management

Optimum Nutrition Weight Management Review

Updated February 2026 • 4 min read

Optimum Nutrition Serious Mass, Weight Gainer Protein Powder...

Optimum Nutrition Serious Mass, Weight Gainer Protein Powder...

⭐⭐⭐⭐ 4.5/5 (12,215 reviews)
$56.94
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What Is Optimum Nutrition Serious Mass?

If you're looking to bulk up and gain weight in a healthy way, you may have come across Optimum Nutrition's Serious Mass weight gainer protein powder. As a well-known and trusted brand in the fitness industry, Optimum Nutrition has been a go-to choice for athletes and fitness enthusiasts alike. With over 12,000 reviews and a 4.5-star rating, it's clear that this product has made a significant impact on many people's fitness journeys.

Key Benefits

One of the standout benefits of Serious Mass is its high calorie content. With over 1,200 calories per 2-scoop serving, this weight gainer is perfect for those looking to increase their daily caloric intake without having to consume multiple meals. Additionally, each serving contains 50 grams of blended protein, which is essential for muscle growth and repair. The product also boasts over 250 grams of carbohydrates per serving, providing sustained energy and supporting your workout routine.

Another significant benefit of Serious Mass is its immune-boosting properties. With 22 vitamins and minerals, including Vitamin C, Vitamin D, and Zinc, this weight gainer supports immune function and helps to reduce the risk of illness and infection. This is especially beneficial for athletes and individuals who engage in high-intensity workouts, as a weakened immune system can hinder progress and prolong recovery time.

How To Use

As with any supplement, it's essential to follow the recommended dosage and timing. For Serious Mass, the manufacturer recommends taking 2-3 scoops (approximately 200-300 grams) per day, 2-3 times a day. You can take it with water or your favorite beverage, and it's best to consume it post-workout or as a meal replacement. Be sure to follow the serving instructions and adjust your intake based on your individual needs and goals.

Who Should Use This?

Serious Mass is designed for anyone looking to gain weight in a healthy and sustainable way. Whether you're a beginner or an experienced athlete, this weight gainer can help you meet your caloric needs and support muscle growth. It's particularly beneficial for those who have trouble consuming enough calories through whole foods or have a hard time gaining weight.

The Verdict

In conclusion, Optimum Nutrition's Serious Mass is an excellent weight gainer protein powder that offers a range of benefits. With its high calorie content, protein-rich formula, and immune-boosting properties, this supplement is perfect for anyone looking to bulk up and support their overall health. While it may not be suitable for everyone, particularly those with sensitive stomachs or dietary restrictions, it's a great option for those who need a boost to reach their fitness goals. Overall, I highly recommend Serious Mass to anyone looking for a reliable and effective weight gainer.

Product Features

  • HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
  • 50 grams of blended protein per 2-scoop serving
  • Over 250 grams of carbohydrates per 2-scoop serving
  • 22 vitamins and minerals including Vitamin C, Vitamin D, and Zinc to provide immune support
  • With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
  • MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential

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