SERIOUS MASS – High-Protein Weight Gain Powder – Chocolate – 6 lbs./8 Servings

SERIOUS MASS – High-Protein Weight Gain Powder – Chocolate – 6 lbs./8 Servings

AUTO-DELIVERY SAVE 15%

AUTO-DELIVERY SAVE 15%

NY SHIPPING REQUIREMENTS APPLY
Delivery Options
Same-Day Delivery +$8.99 / delivery to 60327 Update Zip Code
Unfortunately, we are unable to offer Same-Day Delivery in your area.

Earn Points on This!
or Healthy Awards® to earn points on every purchase towards Cash Back Awards.

Recommended For You

About This Product

  • Supports muscle building and weight gain goals
  • 1,250 calories, 50g of protein, and 252g of carbs per serving
  • Delivers 25 vitamins & minerals, creatine, and glutamine
  • Chocolate flavor

If you’re aspiring to be bigger, have a highly active metabolism, weaker appetite, or on-the-run lifestyle, SERIOUS MASS™ by Optimum Nutrition is for you. This Chocolate weight gain powder packs 1,250 calories, 50g of protein, and 252g of carbohydrates in every serving to help boost calorie intake, support muscle building, and fuel intense workouts.

Directions

Add about two heaping scoops of Serious Mass Protein Powder to a blender filled with 24 fl. oz. of cold water, milk or other beverage. Blend for 30-45 seconds until dissolved. Tips: New users may find it beneficial to begin with 1/2 of a serving for the first week and then gradually increase to 1 serving.

Warning

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 who are pregnant, trying to get pregnant, or are nursing. Contents sold by weight not volume. Some settling will occur. Store in a cool, dry place. Serving scoop included, but may settle to the bottom during shipping.

Read More
Serving Size: About 2 Heaping Scoops
Number of Servings: 8 Servings
Amount Per Serving
% Daily Value
CALORIES 
**%
TOTAL FAT 
8%
SATURATED FAT 
18%
CHOLESTEROL 
67%
TOTAL CARBOHYDRATE 
91%
DIETARY FIBER 
14%
TOTAL SUGARS  - INCLUDES 8G ADDED SUGARS
16%
PROTEIN 
100%
VITAMIN A  - AS VITAMIN A ACETATE
38%
VITAMIN C  - AS SODIUM ASCORBATE
33%
VITAMIN E  - AS DL-ALPHA TOCOPHERYL ACETATE
27%
THIAMIN  - AS THIAMIN HYDROCHLORIDE
33%
RIBOFLAVIN 
69%
NIACIN  - AS NIACINAMIDE
25%
VITAMIN B6  - AS PYRIDOXINE HYDROCHLORIDE
24%
FOLATE  - AS FOLIC ACID
43%
VITAMIN B12  - AS CYANOCOBALAMIN
65%
BIOTIN  - AS D-BIOTIN
200%
PANTOTHENIC ACID  - AS D-CALCIUM PANTOTHENATE
60%
CALCIUM  - AS CALCIUM CARBONATE, CALCIUM PHOSPHATE
54%
IRON  - AS FERROUS FUMARATE
50%
IODINE  - AS POTASSIUM IODIDE
15%
MAGNESIUM  - AS MAGNESIUM PHOSPHATE
48%
ZINC  - AS ZINC OXIDE
34%
COPPER  - AS COPPER GLUCONATE
67%
MANGANESE  - AS MANGANESE SULFATE
26%
SODIUM 
28%
POTASSIUM 
29%
CREATINE MONOHYDRATE 
**%

Other Ingredients:

Maltodextrin, Whey Protein Concentrate, Cocoa (Processed with Alkali), Natural and Artificial Flavor, Sunflower and/or Soy Lecithin, Acesulfame Potassium, Sucralose. Contains: Milk, Soy.

Brand:
Optimum Nutrition
Form:
Powder
Flavor:
Chocolate
Serving Size:
About 2 Heaping Scoops
Number of Servings:
8 Servings
Price per Serving:
($8.12 / serving)
Product Weight:
96  OZ
Item # :
OP-7139 / 1483545
4 Ratings
3.8out of 5 stars
4 Ratings

Rated 5 stars by 25% of reviewers

Rated 4 stars by 50% of reviewers

Rated 3 stars by 0% of reviewers

Rated 2 stars by 25% of reviewers

Rated 1 star by 0% of reviewers

Would you recommend?
4 Reviews
Rated 4 out of 5
Mar 21, 2026
Vitamin shoppe
Great tasting
Rated 5 out of 5
Mar 15, 2024
Totally worth the money
This protein powder and flavor is soo good. It smells like hot cocoa and you can barely taste/smell the protein. This is coming from a person that doesn't drink protein as much or eat the bars because of that weird taste most protein products have. I'm not gonna lie I chugged my protein shake cause it's that good.
Rated 4 out of 5
Nov 13, 2021
Made me gain weight!! :)
It tastes good I like the chocolate flavor. It definitely got me to gain weight which was the purpose of me buying it in the first place. So I?m giving it a 4 out of 5 overall :) plus it has 3GS of creatine what more can you ask for the dude below that rated it 1 star is tripping.
Rated 2 out of 5
Sep 1, 2020
They changed the formula (doesn't taste great anymore)
This used to be one of my favorite proteins of all time, but last time I noticed the flavor was different. A few days later I read the bag and saw that they increased the creatine to 3g and I'm starting to think that this change has completely ruined the amazing shake we used to drink.

While I appreciate the increase in creatine, I can't help but think that it may be the culprit in this change of flavor and it makes me sad to think my favorite drink may be gone forever.
Disclaimer:

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.

We'll email them your question, then email you their replies.

Have a question? Ask owners.Have a question about this? Ask people who own it.
Start typing and see existing answers.
1 Question
Why did you choose this?

It for a friend

It’s good

Used before and like the results.

Used it before

Disclaimer:

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.

 

FREE STANDARD SHIPPING on orders of $35 or more

How to get FREE Standard Shipping:

  1. Ship to an address within the United States (including U.S. territories)
  2. Place your online order of $35 or more* - after promotions and before tax are applied
  3. Use "Standard" shipping option at checkout

Orders will be shipped within 24 hours of order placement*, pending verification of billing information and shipping method selected. International orders and orders containing gift cards or items that are not currently in stock will be processed as quickly as possible.

 

*Excludes all orders placed on major US holidays (Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day and New Year's Day).

 

Orders for states outside of the continental U.S. (including those of $35 or more) may be subject to a delivery surcharge. This will be noted in the order summary based on your shipping address at checkout.

back to top

About Optimum Nutrition

Optimum NUTRITION has been trusted to provide the highest quality in post-workout recovery, pre-workout energy, and on-the-go sports nutrition products for over 35 years and in more than 100 countries. We are obsessed with quality. We sweat the details, scrutinizing every ingredient in every product that we make. We hold ourselves to the highest production standard, all so you can unlock your body’s full potential.

Shop Optimum Nutrition
Optimum Nutrition logo

More Products For Your Wellness Journey

Page loadingLOADING...
Page loadingLOADING...
back to top