Optimum Nutrition Serious Mass Review

ON Serious Mass

When you are serious about your muscle mass gains, you need serious calories. You are unable to consume as many calories as you need just by eating food and this is where you need to include a weight gainer to your diet. Serious Mass is one of the most famous weight gainers out there in the market to pick as it is produced by one of the most trusted bodybuilding supplement companies called Optimum Nutrition, aka ON.

Who is it for?

  • Hard gainers who have done everything but never seem to gain any muscle mass, or weight
  • Natural body builders who want to get bigger without having to turn to illegal substances for doubling up their gains
  • Super-skinny Individuals who must quickly gain serious amount of weight before the start of college life or professional careers
  • Expert bodybuilders who are looking for bulking options
  • Professional bodybuilding competitors who have to pack on a lot of muscle mass during off season

Get Serious Mass Now for Fast and Fail-Safe Muscle Mass Building!

Nutritional Facts

1,250 Calories per serving

50g Protein

250g Carbohydrates (it is claimed that there is no added sugar but this supplement has a lot of it)

Creatine, Glutamine and Glutamine Peptides included

25 Essential Vitamins and Minerals


The directions on the tub/packet says that you should add two heaping scoops of Serious Mass to a blender filled with about 24 oz of water and blend it until it gets nicely blended. You are advised to add other calorie-contributing ingredients to the shake while blending it for even better results.

When to Take it?

You are advised to take it during meals or after workouts, or both.


Here are the pros of Serious Mass by PlanetGainz:

  1. It will surely help you gain weight
  2. It is a surefire shortcut to size, especially when you are on a short deadline
  3. The chocolate flavor is addicting
  4. If you manage to add oats, bananas and peanut butter to Serious Mass shakes, you will see crazy mass gain in your body

Get Serious Mass Now for Fast and Fail-Safe Muscle Mass Building!


Here are the cons:

  1. Adding more stuff such as oats, banana, strawberries, etc. will only make it difficult for you to drink and digest this thing. You will be eating it with a spoon rather than drinking it.
  2. The packet or tub looks gigantic for the price you are paying but when you will see the size of the scooper, you will know that the product won’t last too long in your kitchen.
  3. The scooper is ridiculously big and there is no way you can make a weight gainer shake with two of these scoops and chug it down in one sitting. You will have to consume half the serving so you must split the full serving into two and take on different timings.
  4. If you are solely depending on Serious Mass and not having enough protein from other sources, you will end up getting fat.
  5. Tastes awful in water.

Best Flavors

Chocolate Flavor is the best, Banana Flavor is mediocre and Vanilla one is the worst. Rest are just fine. You might hate or like flavors depending on your taste buds.

PlanetGainz Verdict

The product is good overall but it needs to be consumed real smartly. Addition of protein to the diet is extremely important as the carbs to protein ratio of this weight gainer is so high that your fat cells will grow with leaps and bounds if you don’t add lots of protein to each of your meal.

Word of Advice

It is advised by many websites that you drink Serious Mass shake 30-40 minutes prior to sleeping but I’d suggest otherwise. Don’t drink this gainer late night. You will feel so full that you won’t be able to sleep as long as this shake is in your system, which means you will stay awake all night due to unease. Apart from that, you are good to take it any time you want.

Get Serious Mass Now for Fast and Fail-Safe Muscle Mass Building!

Leave a comment


  1. Hi, I think your website might be having
    browser compatibility issues. When I look at your website in Chrome, it looks
    fine but when opening in Internet Explorer, it has some overlapping.
    I just wanted to give you a quick heads up! Other then that,
    excellent blog!

  2. Hi! This is my 1st comment here so I just wanted to give a quick shout out and say I really enjoy reading
    through your posts. Can you recommend any other blogs/websites/forums that cover the same topics?
    Thanks a lot!


Please enter your comment!
Please enter your name here