Serious Mass Chocolate 12lb by Optimum Nutrition

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  • Ultimate in Weight Gain Formulas
  • 1,250 Calories
  • 50 Grams of Blended Protein
  • 25 Vitamins and Essential Minerals
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Serious Mass by Optimum Nutrition - 12Lb - Chocolate - Weight Gainer Protein

The Bigger Picture 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, 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 carbohydrate, and 25 vitamins and 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 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 carbohydrate to support fueling of intense workouts and aid in the replenishment of glycogen stores – with NO ADDED SUGAR. Enhanced with Creatine, L-Glutamine and Glutamine Peptide, Choline, Inositol, PABA, and MCTs. 25 Vitamins and Essential Minerals with an emphasis on B-Vitamins and Antioxidants.


Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving and 50 grams of protein for muscle recovery, this instantized powder makes the ideal post-workout and between meals shake for sizing up your goals. Serious Mass provides you with the tools you need to pack on the pounds and help you develop the physique you’ve always wanted.

Beyond The Basics

  • Adding Calories Has Never Been This Easy or Tasted So Good
  • 1,250 CALORIES
  • Over 250 g of Carbohydrates with NO ADDED SUGAR
  • Creatine, Glutamine, and Glutamic Acid
  • 25 Vitamins and Essential Minerals

What's In Optimum Nutrition Serious Mass?

Nutrition Facts

Serving Size 2 Heaping Scoops
Servings Per Container 16
Amount Per Serving
  Water % DV low fat
% DV
Calories 1250     -   1640     -  
Calories from Fat 45     -   180     -  
Total Fat 5g 8% 20g 31%
Saturated Fat 2g 10% 11g 55%
Cholesterol 55mg 18% 140mg 41%
Sodium 400mg 17% 800mg 33%
Potassium 1520mg 43% 2790mg 80%
Total Carbohydrate 251g 84% 291g 97%
Dietary Fiber 4g 16% 4g 16%
Sugars 20g   -   56g   -  
Protein 50g 100% 74g 148%
Vitamin A 5000IU 100% 6500IU 130%
Vitamin C 60mg 100% 66mg 110%
Calcium 680mg 68% 1400mg 140%
Iron 9mg 50% 8mg 46%
Vitamin D 200IU 50% 500IU 125%
Vitamin E 30IU 100% 30IU 100%
Thiamin 5mg 320% 5mg 340%
Riboflavin 4mg 235% 5mg 306%
Niacin 50mg 250% 51mg 253%
Vitamin B6 5mg 250% 5mg 265%
Vitamin B12 10mcg 167% 13mcg 212%
Biotin 300mcg 100% 300mcg 100%
Pantothenic Acid 25mg 250% 27mg 270%
Phosphorus 410mg 41% 1130mg 113%
Iodine 187mcg 125% 150mcg 100%
Magnesium 155mg 39% 239mg 60%
Zinc 15mg 100% 18mg 120%
Selenium 70mcg 100% 70mcg 100%
Copper 2mg 80% 2mg 80%
Manganese 2mg 100% 2mg 100%
Chromium 120mcg 100% 120mcg 100%
Molybdenum 75mcg 100% 75mcg 100%
Folic Acid 400mcg 100% 436mcg 109%
Inositol 250mg   -   250mg   -  
Creatine Monohydrate 1g   -   1g   -  
L-Glutamine 500mg   -   500mg   -  
PABA (as Para Aminobenzoic Acid)   -     -   5mg   -  
Choline (as Choline Bitartrate)   -     -   250mg   -  
Glutamine Peptides 500mg   -   500mg   -  
PABA (Para-Aminobenzoic Acid) 5mg   -     -     -  
Choline (as Choline Bitarate) 250mg   -     -     -  
*percent Daily Values are based on a 2,000 calorie diet.

Ingredients: Maltodextrin, Proprietary Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Sweet Dairy Whey, Egg Albumen), Cocoa (Processed with Alkali), Natural and Artificial Flavor, Vitamin and Mineral Blend (Di-Potassium Phosphate, Magnesium Aspartate, Di-Calcium Phosphate, D-Calcium Pantothenate, Calcium Citrate, Manganese Amino Acids Chelate, Zinc Citrate, Ascorbic Acid, Niacinamide, Biotin, D-Alpha Tocopheryl Succinate, Beta Carotene, Selenomethionine, Ferrous Fumarate, Molybdenum Amino Acid Chelate, Copper Gluconate, Pyridoxine Hydrochloride, Thiamin Mononitrate, Riboflavin, Folic Acid, Chromium Polynicotinate, Cyanocobalamin, Cholecalciferol), Acesulfame Potassium, MCT Powder, Cellulose Gum.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Nutrition Facts are a simulation of the product's "Nutrition Label". For the actual Nutrition Label please refer to the product packaging.

How to Take Optimum Nutrition Serious Mass:

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 addition 30-45 seconds. TIPS: Mixing two scoops of Serious Mass with 24 fl oz of nonfat or low fat milk instead of water will give you a thicker, creamier, higher-calorie shake. New users may find it beneficial to begin with 1/2 serving daily for the first weekend then gradually increase to 1 or more full servings several times a day. Serious Mass is a substantial weight-gain supplement that can be used to feed serious calorie needs in a variety of different ways. BETWEEN MEALS: Drink 1/ 21serving of Serious Mass between meals to maintain positive nitrogen balance and support a high-calorie diet. POST-WORKOUT: Begin drinking 1/ 2-1 serving of Serious Mass 30-45 minutes following exercise to support maximum recovery. BEFORE BED: Drink 1/ 2-1 serving of Serious Mass about 45-60 minutes before bed to provide nutrients to recovering muscle throughout the night. NOTE: 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 between workouts impacts your ability to gain lean mass. Allowing at least 48 hours between workouts involving the same body parts is recommended.


CAUTION: KEEP OUT OF REACH OF CHILDREN. Do not take this product if you are pregnant or nursing a baby. Check wit a qualified healthcare professional before using this product if you are under 18 years of age or if you have any known or suspected medical condition(s) including diabetes or hypoglycemia and/or if you are taking any prescription or OTC medication(s). ALLERGEN INFORMATION: Contains milk, egg, wheat (glutamine peptides) and soy (lecithin) ingredients.

 PLEASE NOTE: Product image is representative of the product offered but may not have the exact attributes. Please read product description for the specific attributes of this product.

 PLEASE NOTE: The information above is intended for reference only. While we attempt to keep our information accurate, we cannot guarantee it is an accurate representation of the latest formulation of the product. If you have any concerns, please visit the vendor’s web site. The information above are the views of the product's manufacturer, not the views of Same Day Supplements. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

*Prices are subject to change at any time and some items are limited to stock on hand.

In-stock orders placed before 3pm EST ship out the same day.

We offer many shipping options to countries like:
  • Brazil
  • United Kingdom
  • Canada
  • Germany
  • Australia
  • Japan
  • India
  • France
  • Israel
  • Worldwide
More Information
SKU ON-0034
Weight 13.0000
UPC 748927023800
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