Serious Mass - StrawberryStrawberry | GNC

Optimum Nutrition Serious Mass


Item # 352341



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Size: 6 lb(s)

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High Protein Weight Gain Powder

The true strength of weight gainers
Serious Weight gain requires serious calories. However, those who need the extra calories most often have the toughest time consuming enough of them. For many aspiring to be bigger, a highly-active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone. With Serious Mass™, you've got nothing to lose and lots to gain. We've consolidated 1250 calories, 50 grams of protein, 253 grams of carbohydrates, 25 vitamins & minerals, glutamine and creatine into every serving. It's time to stop thinking small; get serious - Serious Mass™.

Label (click image to enlarge)


Add two heaping scoops of Serious Mass™ to a blender filled with 24 oz. of water. Blend for 45-60 seconds. Then add a few ice cubes and, if desired, other calorie-contributing ingredients (see "Supercharge Your Serious Mass™" on the opposite panel) and blend for an additional 30-45 seconds.
Contains Milk, Egg, Wheat (Glutamine Peptides) and Soy (Lecithin) Ingredients.


Consult your physician before using this product if you are taking any medications or are under a physician's care for a medical condition. Not for use by those under the age of 18 or women that are pregnant, trying to get pregnant, or nursing.

Other Ingredients

Maltodextrin, Protein Blend, natural and artificial flavors, Vitamin and Mineral Blend, Medium Chain Triglicerides , Lecithin, FD&C Red # 40, Acesulfame Potassium
Manufactured by Optimum Nutrition
975 Meridian Lake Dr., Aurora, IL 60504

Nutrition Facts

Serving Size  2 Heaping Scoops
Servings Per Container  8

Amount Per Serving     % DV

Calories 1250  
  Calories from Fat 30  

Total Fat 3.5g   5%
  Saturated Fat 2g   10%
Cholesterol 80mg   27%
Potassium 990mg   28%
Total Carbohydrate 254g   85%
Phosphorus 460mg   46%
Magnesium 140mg   35%
Calcium 630mg   63%
Copper 1mg   50%
Manganese 2mg   100%
Chromium 120mcg   100%
Molybdenum 75mcg   100%
Sodium 480mg   20%
Iron 5mg   28%
Iodine 150mcg   100%
Zinc 15mg   100%
Selenium 70mcg   100%
Sugars 23g  
Protein 50g   100%
Vitamin A 5000IU   100%
Vitamin C 60mg   100%
Vitamin D 200IU   50%
Vitamin E 30IU   100%
Thiamin 4.8mg   320%
Riboflavin 4mg   235%
Niacin 50mg   250%
Vitamin B6 5mg   250%
Folic Acid 400mcg   100%
Vitamin B12 10mcg   167%
Biotin 300mcg   100%
Pantothenic Acid 25mg   250%

Creatine Monohydrate  1 g   **
L-Glutamine  500 mg   **
Glutamine Peptides  500 mg   **
Choline (as Choline Bitartrate)  250 mg   **
Inositol  250 mg   **
PABA (para-amino benzoic acid)  5 mg   **

** Daily Value (DV) not established.


4.6 / 5.0
63 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Great Mass Gainer
Love it! Great taste and easy to drink, not to thick at all. Haven’t seen the gains just yet but I have a really fast metabolism and haven’t been using the product that long. Been using the product for a week and a half.
June 20, 2018
3 weeks ago
June 19, 2018
3 weeks ago
Pleasantly surprised delicious
I was pleased when the GNC rep told me "you know this is for bulking " I let him know I was a soon to be 53 woman and was drastically loosing weight and muscle mass. Told him because of my busy lifestyle and work schedule I can not consume enough calories. I also I just started strength exercises, etc and after reading reviews, u chose Serious Mass. He understood and agreed. Had my first drink today: 1/2 serving, banana, cup of oats, and 2 cups whole milk . Modified a reviewers recipe. Chilled in freezer 15 minutes and too my surprise it was delicious
June 17, 2018
Great Deal taste great & most of all it really works!!!
June 16, 2018
3 weeks ago
Hello GNC,I am 6' 1' and I weigh 140 pounds. Last year, my BMI was borderline underweight. I am also vegetarian. All the odds are against my favor in terms of gaining weight. Also, not a day has passed in my life in which a comment has not been made on how skinny I am, teasing, joking, or whatever. At a certain point, the teasing gets too much and I feel like I want to do something about it.My problem as many skinny guys have is eating enough. I really hope that your GNC protein shake actually gives 1250 calories per serving size of two scoops. I have been faithful to the shake for about 2 weeks now and hope that my continued persistence will truly get me the results that I want. It tastes good. I'm not sure if it works yet cuz i started so recently. But i'm happy with everything else.
June 13, 2018
4 weeks ago
I think it tastes great not like others I'll definitely buy it again
June 13, 2018
4 weeks ago
My son who cannot seem to gain weight has gained over 15 lbs using this product. You have to use a blender to make it correctly as the scopes are huge.
June 13, 2018
4 weeks ago
Great tasting for sure.
This mix taste great to me love it.I give it a 5 star for sure.
June 13, 2018
4 weeks ago
Does what says and tastes great
June 11, 2018
1 month ago
Great product
It helped me tremendously coming back from surgery within weeks I’m back to my old self I highly recommend to any one trying to get gains back or trying to get new gains.
June 8, 2018
1 month ago
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Browse 47 questions Browse 47 questions and 44 answers
Why did you choose this?
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BEST TASTING PROTIEN I'VE HAD, works great I only take half of the recommened serving.
j c on Apr 9, 2015
BEST TASTING PROTIEN I'VE HAD, works great I only take half of the recommened serving.
j c on Apr 9, 2015
okay, i just bought on serious mass, and i was wondering, how should i use it?

I workout 3x a week(Wednesday,Friday,Sunday) Should i only use it on the workout days? should i take it everyday?

And how many servings should i use ?(twice in the morning, twice after working out?)/

need help
A shopper on Mar 27, 2014
BEST ANSWER: You could start using it by adding two heaping scoops of Serious Mass to a blender filled with 24 oz. of water. Blend for 45-60 seconds. Then add a few ice cubes and, if desired, other calorie-contributing ingredients (see “Supercharge Your Serious Mass” below) and blend for an additional 30-45 seconds.

On the workout sessions; you can use it during post-workout, begin drinking ½ -1 serving of Serious Mass 30-45 minutes following exercise to support maximum recovery.

For best results use Serious Mass combined with intense weight training (3-5 times per week) and a sensible whole foods diet. Also, keep in mind that sufficient recovery. New users may find it beneficial to begin with ½ of a serving daily for the first week and then gradually increase to 1 or more full servings several times a day.

You can take it between meals, drink ½ -1 serving of Serious Mass between meals to maintain positive nitrogen balance and support a high-calorie diet, and before bedtime, drink ½ -1 serving of Serious Mass about 45-60 minutes before bed to provide nutrients to recovering muscle throughout the night.
Can I mix serious mass with GNC whey protein for getting better result?
A shopper on Mar 22, 2016
BEST ANSWER: I would not do that
Does this help you get thick as well ?
Maymay on May 19, 2018
BEST ANSWER: No it didn't
Can this product be used by females who are looking to put on some extra mass?
A shopper on Oct 25, 2013
BEST ANSWER: Yes, this product can be used by females.

I want to know that Serious Mass Contains Lactose Or other Digestive Enzymes or not.?
A shopper on Sep 30, 2013
BEST ANSWER: Sorry, I do not see lactose or digestive enzymes on the label for this product.
How many calories is in one scoop?
youuloveang on Apr 3, 2018
BEST ANSWER: 635 in One Scoop
hi im 18 years old im 6 in height and i weigh about 155 would you recommend this product to gain weight
A shopper on Aug 4, 2013
BEST ANSWER: This product delivers a lot of calories in a healthy form for those looking to bulk up but not looking for fat.
How well will it digest in the body from felling so full?
Phyllis R on Mar 16, 2018
BEST ANSWER: I feel full immediately afterwards, but usually within 2-3 hours I feel normal and get my appetite back. Everyone’s different, you can also adjust the amount of powder you use or split it into two separate shakes to drink at different times of the day rather than one big filling one.
Is it possible to bulk up using mass gainer while you’re 13 yr old?
BashdiBALDI on Jun 1, 2018
BEST ANSWER: If by mass gainer you mean some sort of protein like whey‚ then yes you can bulk up. However since you are only 13 your body is still growing and your metabolism is still very high. You'll have to make sure to have a good healthy diet which is high in protein along with the mass gainer to make sure it works to its fullest potential. Foods such as nuts‚ fruits‚ berries‚ eggs‚ wild salmon not farm raised‚ leafy greens and chicken will be a great start for a healthy diet.
How many times a day was the best to take this?,and what is the best time?
A shopper on Mar 3, 2018
BEST ANSWER: In the morning with a meal and after a workout.
What flavor do you recommend?
A shopper on Jun 18, 2018
BEST ANSWER: Natural Vanilla
What's the best way to mix it? Like should I use a blender, or maybe a blender bottle?
Akshay S on May 30, 2018
BEST ANSWER: Blender bottle works well
What can you take to avoid s
tomach pains darts issues?
A shopper on Apr 17, 2016
BEST ANSWER: If you're having stomach pains, you should probably adjust your diet, it can also be caused by dehydration.
How much protein and how many calories would be present per serving if used with whole milk?
A shopper on Aug 6, 2014
BEST ANSWER: It would contain 82 grams of protein and 1688 calories.
i am 15 years old weighing 95 pounds i am very skinny and im looking to put on weight i dont workout i just want to put on weight, how long will this product last and how much weight can i put on with it.
A shopper on Dec 31, 2013
BEST ANSWER: This will last for 5-10 days and the weight gain depends on the person.
My husband cannot have vitamin K. Is there any in this product?
A shopper on Sep 19, 2013
BEST ANSWER: There is no vitamin K listed for this product.
Is it good to take BCAA with Serious Mass or not?
A shopper on May 7, 2013
BEST ANSWER: Because of how strong serious mass is it is recommended you do not take it with BCAA.
hello im a skinny boy, 178cm 60kg, and want to use this product! i noticed it only last about 5-10 days!! so what is the result if i use one pack? what does it bring? i exercise 4 days a week
A shopper on Apr 25, 2013
BEST ANSWER: This product delivers a lot of calories in a healthy form for those looking to bulk up but not looking for fat. With exercise you are likely to just burn it back off so in theory this may not bring you anything.
Is Serious Mass ok for 16 year old boys? And at what amount?
A shopper on Feb 27, 2013
BEST ANSWER: Serious Mass is safe for use by a 16-year male. The daily dosing depends on the diet and workout program the person is on. It's considered safe at upto five shakes per day.
hi! my name is jenny. And my weight is only 80 ibs. I try to eat alot, but i still dont put that much weight in my body. I wanted to know will this product give me the results that my weight will be more than 80 ibs.?
A shopper on Jan 21, 2013
BEST ANSWER: Yes, because it adds a lot of extra calories that are needed to gain weight.
Is this product safe to take with a multi vitamin considering it contains vitamins also?
A shopper on Jan 16, 2013
BEST ANSWER: No, this product contains anywhere from 100%-250% of your daily recommended dose of most of the vitamins in an ordinary multi vitamin.
Is this prodruct legal for NCAA division 1&2 athletes?
A shopper on Jan 7, 2013
BEST ANSWER: This product contains mainly protein and none of the listed ingredients listed on the supplement facts page fall under the NCAA banned drugs list.
how long will it last if i work out pretty hard 3 times a week? it says only 16 servings
A shopper on Nov 28, 2012
BEST ANSWER: It will last 5-10 days. It will last about five days if you take 1 serving each time, because it is recommended to be taken 3 times a day and additional 1 serving after workout.
If you take 1/2 serving each time it will last about 10 days.
looking for a shake or a drink with high calories have to gain weight before starting kemo for brain cancer
A shopper on Nov 19, 2012
BEST ANSWER: This product contains 1,250 calories per serving in water; 1,630-plus calories when made with low fat milk.
hello i just purchased this serious mass but i seen it has alot of grams of protein my question is is this product bad for anxiety?? because i suffer from anxiety thanks!!
A shopper on Nov 15, 2012
my name is Sharon and i am a student of chartered accountancy. I am 23 yrs old, height is 5'10''. my weight is 62 kgs. i am very skinny. will this product help me in gaining weight with light weight exercise bcoz i have no time for heavy exercise due to studies. in what time i will become muscular?
A shopper on Oct 17, 2012
BEST ANSWER: Unfortunately, a product like this without the proper weight training and exercise, will only make you gain pounds, rather than muscle mass.
Whats the best time to use this before or after workout. I usually take it after workout when im using any protein. and i never tried this
A shopper on Sep 17, 2012
BEST ANSWER: After your workout is a recommended time of consumption according to the product supplemental facts. The other recommended times are for between meals and before bed.
i'm 20 years old 55kg which should i take weight gainers or whey protein?i'm under weight workout 5times a week..??
A shopper on Sep 12, 2012
BEST ANSWER: Since you are under weight and looking to gain muscle AND mass you should consume a weight gainer product like the Serious Mass powder. Once you have reached your desired weight or body size you can use whey protein to gain lean muscle and build strength and endurance.
hi...I am ashish,26yrs old. I have an average body having height 6'2 and weight around 79kgs. Actually I had this product(ON Serious MAss) 3 times continuously but what I have seen is when I stop taking it my body becomes so lean and skinny and Stamina is also decreased. So, I just want to know is this a right product for me or I should go for some better product?
Please suggest me.

A shopper on Sep 10, 2012
BEST ANSWER: It sounds like you are seeing results from this product, so you should continue taking it. The reason for your decrease in body mass while not taking this product is that when you stop using it, you are eliminating 1250 calories from your diet. Your body needs a certain number of calories to maintain any weight (higher weights needing more calories), when those calories are reduced your body will start cannibalizing fat and muscle tissue for fuel.
hi .i m 30 yeras old .my body type is average not skinny i have little bit fat on my body is this product is good for me.if not then what should i use for more muscle size but in good shape.plz help me and answer me
A shopper on Aug 26, 2012
BEST ANSWER: This product will definitely give you the additional calories and protein you'll need to put on extra body mass. Whether or not that extra mass will be more muscle or more fat will depend on your training regime.