Serious Mass - ChocolateChocolate | GNC

Optimum Nutrition Serious Mass


Item # 350315



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  • Flavor
Size: 6 lb(s)

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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, highly-active metabolisms, weaker appetites, and on-the-run lifestyles make consuming sufficient calories through whole foods alone a real challenge. With Serious Mass, you’ve got nothing to lose and lots to gain. We’ve consolidated over 1,250 calories, 50 grams of protein, 250-plus grams of carbohydrates, and 25 vitamins & minerals with added glutamine and creatine into every serving. It’s time to stop thinking small; get serious – Serious Mass.


  • 1,250 calories per serving in water; 1,630-plus calories when made with low fat milk.
  • 50 grams of protein from a combination of faster and slower digesting sources including Whey, Casein,and Egg.
  • 250-plus grams of carbohydrates to support fueling of intense workouts and aid in the replenishment of glycogen stores - with NO ADDED SUGAR.
  • Enhanced with Creatine, L-Glutamine & Glutamine. Peptides, Choline, Inositol, PABA, and MCTs.
  • 25 Vitamins & Essential Minerals with an emphasis on B-Vitamins and Antioxidants.

Label (click image to enlarge)


Add two (2) heaping scoops (scoop included) of Serious Mass to a large blender
filled with 24 fl. oz. of cold water or milk.
If desired, add ice and other ingredients (see side panel for suggestions);
cover and blend on high speed for 45-60 seconds - or until thoroughly mixed.
NOTE: New users may find it beneficial to begin with one half (1/2)
of a serving daily for the first week, gradually increasing
to one or more full servings several times a day.
Contains Milk, Egg, Wheat (Glutamine Peptides) and Soy (Lecithin) Ingredients.


Not for use by those with pre-existing medical conditions or taking any medications, those under the age of 18 or women that are pregnant or nursing.

Other Ingredients

Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumen, Sweet Dairy Whey), Natural and Artificial Flavors, Vitamin and Mineral Blend Serious Mass™, Lecithin, Acesulfame Potassium , Medium Chain Triglycerides
Sunrise, FL 33325
Consumer Affaits
USA(630) 236.0097

Nutrition Facts

Serving Size  2 Heaping Scoop
Servings Per Container  8

Amount Per Serving     % DV

  Calories from Fat 40  

Cholesterol 80mg   27%
Sodium 410mg   17%
Potassium 1560mg   45%
Total Carbohydrate 252g   84%
Protein 50g   100%
Phosphorus 430mg   43%
Calories 1250  
Sugars 20g  
Total Fat 4.5g   7%
Saturated Fat 1.5g   8%
Iodine 150mcg   100%
Magnesium 140mg   35%
Zinc 15mg   100%
Selenium 70mcg   100%
Copper 1.6mg   80%
Manganese 2mg   100%
Chromium 200mcg   167%
Molybdenum 75mcg   100%
Vitamin A 5000IU   100%
Vitamin C 60mg   100%
Vitamin D 200IU   50%
Vitamin E 30IU   100%
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%
Calcium 590mg   59%
Iron 8mg   44%

Creatine Monohydrate  1 g   **
L-Glutamine  500 mg   **
Glutamine Peptides  500 mg   **
Choline (as choline bitartrate)  250 mg   **
Inositol  250 mg   **
PABA (para-aminobenzoic acid)  5 mg   **

** Daily Value (DV) not established.


3.9 / 5.0
9 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
This is very good for gaining mass. I put on 27pounds in 2 1/2 months, and still gaining. This would be good belnded into a shake, but as you know we dont have time for that. USE WATER! and shake until there is little to no residue at the bottom and drink it fast. Dont concentrate on the taste because you will find yourslef not wanting to finish it. If you can take it, it packs on pounds. However not a good tasting one. I prefer the Hyperbolic mass gainer by GNC. This is the best, goes down smooth, and tastes better than strawberry milk!
May 2, 2011
Great Product
I Tried the product with Milk alone at first and it wasnt bad, I realized that taking a full serving after working out did make me feel very bloated so I proceeded to take half a serving after working out and then a full serving before bed and over the course of a a month I have gained 6 lbs since using this. Recently I changed up mixing it with milk and started mixing it with orange juice and putting a banana or two in a blender and mixing it all up, works great.
February 22, 2011
Grate serious mass
It's grate product. I have tried before. You don't have to buy extra multivitamins. All most you get everything.
April 21, 2017
Strawberry flavor gives it a nice kick.
This product helps me to maintain weight and gain muscle. I use it after meals at least twice a day.
The strawberry flavor gives it an extra kick.
April 23, 2011
serious mass
i use this product after a workout,gives yuo lots of energy and quick recovery.only negative ,scoop is too large.
March 16, 2011
Great product!
I take this product every morning after breakfast and it works great! I only take half the serving because I feel too bloated otherwise. I've seen gains since using this product- about ten pounds over the course of three months. Tastes great, somewhat like juice. I didn't notice a chalky taste, but that might be because I only use half a serving with 20 oz of water.
August 7, 2010
Worked for me
Used about half the recommended amount per day and gained about 5+ lbs in about a month. Seemed to be muscle weight I gained. Also focused on eating well/more and worked out pretty hard 3+ times per week. Was lifting more weight after a month.
December 22, 2013
good product bad taste
Good product I would recommend you try a different flavor though
May 25, 2011
Strawberry Review
The taste is horrible, I would stay away from this flavor. I thought I would try strawberry because the banana was so good but it tastes like your drinking water with chalk in it.
June 25, 2010