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Optimum Nutrition Serious Mass Review

by Ultimate Sup Staff on May 25, 2023

An in-depth Optimum Nutrition Serious Mass review from Ultimate Sup. 

Many of us have difficulty gaining weight. If you're one of them, you should know that a high-calorie diet is essential. Your calorie intake must be more than your calorie expenditure.

One strategy to enhance your calorie intake is to eat a lot more than you would.

But, this may be a little too much for you. If you have a weak appetite. If you're a real hard gainer who needs to consume plenty of calories daily. Or if you are having trouble fitting a meal into your hectic schedule.

This is where weight gain shakes come in. They are a revolutionary solution that can assist you in resolving such issues.

Weight gain shakes can be added to your diet to help you gain weight. It provides a lot of calories, proteins, and everything you need in a handy form. And one of the greatest high-calorie weight gainer drinks is ON Serious Mass.

For more than 30 years, Optimum Nutrition has been regarded as the Gold Standard in sports nutrition. It assists motivated athletes in achieving their objectives. When combined with workouts, you can grow muscle mass and get what you've always wanted.

Are you curious for more information? Continue reading this Optimum Nutrition Serious Mass review.

Serious Mass Review: Overview

Review of Serious Mass Singapore

Serious Mass is a hardcore mass gainer that's packed to the gills with calories.

Optimum Nutrition Serious Mass Gainer has 1.250 calories. It also contains 254g of carbs and 50g of blended protein per serving. That makes it ideal for increased caloric consumption. ON Serious Mass is suitable for those who want to bulk up, gain weight, as well.

There are criticial 25 vitamins and minerals in the item. They include 3g creatine, 500 mg glutamine, and glutamic acid. You can also find a significant number of macros in Serious Mass. They are important to keep you stay going in your workout.

ON Serious Mass has so many tastes to select from. But, you can make them just how you want them. You may add frozen fruits, nuts, or peanut butter to boost calories and improve the flavor.

Whey protein concentrate, calcium caseinate, egg albumen, and sweet dairy whey are available, too. On a side note, if you are allergic to eggs, milk, or soy, you may need to take extra care.

To keep those pounds coming, combine your training regimen with Serious Mass. It means that the product is best-taken post-workout, between meals, or before bed.

Best For: 

  • Muscle Building
  • Weight Gain 
  • Meet Caloric Needs


  • Produced by one of the most well-known companies in the nutritional supplement industry.
  • Various flavors to pick from
  • Remain the same high quality as before.
  • A simple approach to boost your calorie, macronutrient, vitamin, and mineral intake.
  • Deliver a lot of calories per serving.


  • The Food and Drug Administration has not evaluated this product. Because it has not been assessed for other dietary supplements.
  • Allergens: egg, milk, and soy
  • You may need to use a blender to mix ingredients well. But, some people may find this inconvenient. Because they have to clean it every time.
  • In comparison to other competitor products, it contains fewer servings per container.
  • A money-back guarantee or any type of warranty isn't available.

Serious Mass Review: Who Should Use

As mentioned before, Optimum Nutrition Serious Mass is for:

  • Those who are hard gainers who have trouble gaining weight
  • Those who have a poor appetite, or have a hectic schedule

Serious Mass Review: How To Use

It's advised to start with 12 servings per day for a week. Then, you should gradually increase servings after.

In a blender, combine 2 full scoops of serious mass with 24 fl oz of your choice of beverage, milk or cold water, for savvy customers. You are free to add ice or any other ingredients you choose. Blend on high for 45-60 seconds, or until well combined. Once the package has been opened, keep it in a cool, dry environment.

Serious Mass Review: Best Time To Use

Optimum Nutrition Serious mass can be used in many different ways:

  1. In the morning: Eating a high-calorie breakfast will help you feel more energized. This is especially useful for people who don't have time to cook and prepare breakfast.
  2. After a workout or a period of hard training: After a workout, your body's glycogen levels drop. So, eating enough carbs can help you replace your glycogen stores. Protein is required to deliver amino acids for muscle repair and recovery. As a result, mass gainers are an excellent post-workout meal.
  3. Before Bed: Taking Serious Mass gainer before bed is recommended. It ensures your body to have enough protein. Then, your body can recuperate from your workout while you sleep. Keep in mind that you should sleep at least 1-2 hours after your previous meal.

    Serious Mass Review: Taste And Mixability

    Here are six flavors available in Optimum Nutrition Serious Mass:

    • Chocolate
    • Strawberry
    • Banana
    • Vanilla
    • Cookies and cream
    • Chocolate peanut butter 

    People who like this product talk about how delicious the flavors are. It has a consistency that is like a thick milkshake. Especially when combined with other ingredients.

    It may take a while for it to dissolve, so use a blender instead of a shaker.

    Serious Mass Review: Effectiveness

    Let's look at an example of our customers to find out Serious Mass effectiveness. 

    For four weeks, he took Serious Mass twice a day, between three regular meals. On rest days, he did a basic 5:5 strength and size regimen as well as some light cardio. In over a month, he gained 12 pounds (about 0.86 stone) in weight. While he received most muscle growth, he did add some fat. Serious Mass also helped him add significant weight to his 5RM on the bench. 

    Serious Mass Review: Value For Money

    Serious Mass is available for around $72.50 per 12lbs at Ultimate Sup Singapore.

    Serious Mass, like all other Optimum Nutrition products, has a greater nutritional profile than competitor brands. So, Optimum Nutrition Serious Mass is more expensive than normal supplements. It brings a good value for money, although it has fewer servings.

    But, we believe that Optimum Nutrition Serious Mass Gainer is worth your money. Based on its nutritional profile and the fact that it is created by a respectable and trusted firm.

    You have read all of our Optimum Nutrition Serious Mass ReviewAre you interested in giving it a shot? Or do you want to shop at Ultimate Sup Singapore for the best deal? Incase you have any questions, we'd love to hear your ideas!

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