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Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Chocolate, 6 Pound (Packaging May Vary)

4.5 4.5 out of 5 stars 25,270 ratings

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Chocolate
8 Servings (Pack of 1)

Purchase options and add-ons

Brand Optimum Nutrition
Flavor Chocolate
Servings per Container 8
Item Weight 6 Pounds
Diet Type Vegan

About this item

  • High Calorie Weight Gainer: 1,250 Calories per 2-Scoop Serving
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
  • 50 Grams of Protein per Serving. Over 250 Grams of Carbohydrates per Serving
  • 25 Vitamins & Minerals Plus Creatine & Glutamine. No added sugar
  • Using an Electric Blender to Add Fresh or Frozen Fruits, Peanut Butter, Nuts & Other Calorie Dense Foods to Boost Your Weight Gain Potential
  • Search "ON Apparel True Strength" to see our new ON clothing line!

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From the brand


From the manufacturer

Optimum Nutrition's Serious Mass to help you get serious about your sizable ambitions

OPTIMUM NUTRITION SERIOUS MASS

OPTIMUM NUTRITION SERIOUS MASS GAINER PROTEIN POWDER

OPTIMUM NUTRITION SERIOUS MASS GAINER PROTEIN POWDER

Calories That Count

Serious weight gain goals require serious calories. For many aspiring to be bigger, a highly- active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to get enough calories from food.

Supercharge Your Serious Mass

Using an electric blender, you can add nuts, fresh or frozen fruits and other calorie-contributing ingredient to enhance the weight gain and muscle recovery potential of Serious Mass.

Optimal Usage Occasions

Between meals, after weight training and before bed. With less than 5 grams of fat per serving, Serious Mass is the weight gain formula packed with calories that count during recovery.

You've got a lot to gain with ON's Serious Mass

OPTIMUM NUTRITION SERIOUS MASS GAINER PROTEIN HIGH CALORIE

SERIOUS MASS is the ultimate muscle building and weight gain formula

Serious Mass Gainer 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 support your weight gains goals. Per 2-scoops, you are getting:

  • 3 Grams of Creatine Monohydrate per Serving
  • 25 Vitamins & Essential Minerals
  • 250+ Grams of Carbohydrates per Serving to Help Fuel Workouts
  • 50 Grams of Protein per Serving to Help Build and Maintain Muscle
  • 1,200+ Calories

serious mass optimum nutrition on mass gainer powder optimum nutrition creatine monohydrate powder on optimum nutrition creatine caps on microironized optimum nutrition amino 2222 tabs post workout supplement optimum nutrition bcaa supplement
Serious Mass Gainer Protein Creatine Monohydrate Powder Creatine Monohydrate Capsules Amino 2222 Tablets BCAA 1000 Capsules
Customer Reviews
4.5 out of 5 stars
25,270
4.6 out of 5 stars
67,363
4.7 out of 5 stars
23,250
4.4 out of 5 stars
3,306
4.6 out of 5 stars
2,081
Suggested Use: Supports muscle building and weight gain goals Supports muscle building, strength and performance Supports muscle building, strength and performance Helps maintain muscle tissue with whey protein Supports endurance and recovery through BCAAs
What's Inside Per Serving: 50g of Protein, 3g Creatine Monohydrate 5 grams of 100% pure creatine monohydrate 2.5 grams of 100% pure creatine monohydrate 5.3g of amino acids, complete amino acid spectrum coverage 1,000mg of branch chained amino acids

Product Description

Product Description

More calories. More protein. More carbs. SERIOUS MASS by Optimum Nutrition serves up 1,260 calories, 50g of blended protein, and over 250g of carbohydrates per serving to help you maximize your daily caloric intake – the ideal post-workout and between meals shake for sizing up your goals. SERIOUS MASS provides you with more tools to help you pack on pounds, when taken in addition to normal calorie intake and over time with regular resistance training. Calories per gram: Fat 9, Carbohydrate 4, Protein 4.

Brand Story

By Optimum Nutrition

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ Yes
  • Product Dimensions ‏ : ‎ 8.06 x 8.06 x 10.34 inches; 6 Pounds
  • Item model number ‏ : ‎ 1101537
  • Department ‏ : ‎ unisex-adult
  • Date First Available ‏ : ‎ May 7, 2005
  • Manufacturer ‏ : ‎ Glanbia Performance Nutrition
  • ASIN ‏ : ‎ B0015R36SK
  • Customer Reviews:
    4.5 4.5 out of 5 stars 25,270 ratings

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Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Chocolate, 6 Pound (Packaging May Vary)
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Price-96% $2.00
List:$51.99
-96% $2.00
List:$53.99
$82.99-9% $49.03
List:$53.99
$79.99-12% $47.41
List:$53.99
Price Per Unit$0.02 / Ounce$0.02 / Ounce$0.43 / Ounce$0.51 / Ounce$0.42 / Ounce$0.49 / Ounce
Delivery
Get it Mar 27 - 29
Get it Mar 27 - 29
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Ingredient quality
4.1
4.0
4.1
4.0
4.2
4.0
Flavor
4.1
3.9
4.1
3.9
4.2
3.9
Value for money
4.0
3.9
4.0
3.9
4.1
3.9
Portion size
3.3
3.7
3.3
3.7
4.5
3.7
Scent
4.2
4.3
4.2
4.3
4.3
Sold By
GNC
GNC
Amazon.com
Amazon.com
Amazon.com
Amazon.com
flavor
Chocolate
Vanilla
Strawberry
Banana
Chocolate
Chocolate Peanut Butter
protein source
whey
whey
whey
whey
whey
whey
weight
6 pounds
6 pounds
12 pounds
2.72 kilograms
12 pounds
6 pounds
target gender
unisex
unisex
unisex
male
unisex
unisex
carbohydrate info
253 grams
252.0 grams, 252.0 grams
252.0 grams, 254.0 grams
251 grams
energy info
1250 kilocalories
1250 kilocalories
1.25 kilocalories, 1.25 kilocalories
1.25 kilocalories, 1250.0 kilocalories
1250 kilocalories
1.26 kilocalories, 1270.0 kilocalories

Important information

Safety Information

Do not take this product if you are pregnant or nursing a baby. Check with 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 of OTC medication(s).

Ingredients

Maltodextrin, Proprietary Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Sweet Dairy Whey, Egg Albumen), Cocoa, Natural & Artificial Flavor, Vitamin/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.

Directions

Mix 2 scoops of the powder into 24 fluid ounces of cold water or milk using an electric blender. Use as a post-workout recovery tool, as part of a complete meal, or in your daily snack routine to raise caloric intake. Want to add even more calories to your shake? Mix in fruits, berries, nuts, peanut butter, and other calorie-contributing foods before blending. TIP: New users should start with a 1-scoop half serving. Use post-workout and/or between meals to add calories, carbs, and protein to your healthy, balanced diet.

Legal Disclaimer

* 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. ** Always refer to the manufacturer's label on the product for description, recommended dose and precautions.

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

Looking for specific info?

Customer reviews

4.5 out of 5 stars
4.5 out of 5
25,270 global ratings

Customers say

Customers like the taste, quality and value of the weight gain supplement. For example, they mention it tastes good, works great and is good value for money. Customers are also impresseded with the calories. That said, opinions are mixed on filling, ease of mixing, and appetite.

AI-generated from the text of customer reviews

704 customers mention528 positive176 negative

Customers like the taste of the health personal care product. They say it tastes good, has a chocolate flavor, and smells like strawberry marshmallows. Some say it's easy to take and mixes well.

"...Vanilla and chocolate tastes just fine, even better with a scoop of peanut butter...." Read more

"...Not bad though, didn't have any digestion issues with it, tastes good, doesn't cause gas like some, it does fill you up though, maybe its how I use..." Read more

"What they tell you. It tastes great and is a good supplement to build mass.What they don't tell you...." Read more

"...this will give you the best consistency.This stuff tastes like cake mix and can be hard to drink( just kinda thick) If you use water it will..." Read more

383 customers mention333 positive50 negative

Customers like the quality of the product. For example, they mention it works great, is pretty useful, and carries a ton of vitamins and minerals. That said, some say the quality is fine.

"...Well i can tell you this stuff works great I noticed a huge difference in my hunger levels and in the..." Read more

"Good product" Read more

"Amazing product. Was able to gain 15 pounds in 20 days with regular meals (3) a day and a consistent exercise regime...." Read more

"...I still gave the product 3 stars because the quality of the ingredients is probably fine and I have not tried any other brand of weight gainer so..." Read more

200 customers mention145 positive55 negative

Customers like the value of the product. They say it's a very low-cost food source, and an inexpensive option for weight gain and muscle development. They also mention that it has 2 scoops per 24FL oz, making it a great size for the price.

"...You save a lot of money also since the whey one has more servings.Last advice, use MyFitnessPal app if you have trouble gaining weight...." Read more

"...You save a lot of money also since the whey one has more servings.Last advice, use MyFitnessPal app if you have trouble gaining weight...." Read more

"...It tastes pretty good, a little high on price, don't get a bunch since you have to use two huge scoops compared to other products...." Read more

"...If you are unsure, give it a go. So much value to gain, and not so expensive for what you get" Read more

153 customers mention129 positive24 negative

Customers like the weight gain of the product. They mention it helps with weight gain, stabilizes metabolism, and makes a difference in maintaining their weight. Some say that the product is extremely beneficial in gaining muscle. Overall, most are happy with their purchase and recommend it to others.

"...Using this product sparingly even has greatly increaseed my results and weight gain i am very happy.Now a few tips.( i have bought 5 bags)..." Read more

"...It helps me both drink more water as well as add more calory points, but doesn't leave me feeling completely bloated and uncomfortable like I do..." Read more

"What they tell you. It tastes great and is a good supplement to build mass.What they don't tell you...." Read more

"...This product has kept my weight up during a difficult holiday season and I’m so grateful to have found it...." Read more

100 customers mention100 positive0 negative

Customers like the calories in the product. They mention that it helps them exceed their calorie requirements, is low in fat, and doesn't feel bloated at all. They also appreciate the selection of flavors and the fact that it has 200g of carbs. Overall, customers are happy with the product's calorie content and recommend it to others.

"...Well i can tell you this stuff works great I noticed a huge difference in my hunger levels and in the amount of muscle I was gaining and weight...." Read more

"...Much cheaper per serving, a better selection of flavors, and a lot less carbs...." Read more

"...and sometimes a chocolate donut all in the mixer, turns out very thick but calorie packed." Read more

"...Much cheaper per serving, a better selection of flavors, and a lot less carbs...." Read more

118 customers mention50 positive68 negative

Customers are mixed about the filling of the product. Some mention that it fills them between and after meals, and helps increase their appetite. However, others say that it makes them bloated, nauseous, and sick.

"...Only problem, I found out the whey protein is causing me to break out across my chest...." Read more

"...Banana. very sweet but light and good for morning.Strawberry. mix of both (i got tired of it tho)Mixing:..." Read more

"...with that^, know that 1 serving size ( aka 2 scoops) is EXTREMELY filling. I guess it makes sense knowing it’s ~1200 calories...." Read more

"...not only have I seen gains in muscles but it also helps give you more energy during the days when taken regularly and doesnt have a crash like with..." Read more

114 customers mention74 positive40 negative

Customers are mixed about the ease of mixing. Some mention that it mixes well, and absorbs quickly to start. They say it blends nicely, and is tolerable. However, others say that it doesn't mix well by hand, and must be mixed in a blender.

"...For me, this blends up perfect without being gritty or chalky...." Read more

"...make sure to blend it up well, it’s not practical to mix by hand. Usually with stressful times, I lose a lot of weight...." Read more

"its smooth no chucks down like chocolate milk i will hopefully see results...." Read more

"...I've never tasted it myself, but it smells quite good and blends nicely (and mom can be picky!) Thanks Serious Mass!..." Read more

112 customers mention59 positive53 negative

Customers are mixed about the appetite of the protein powder. Some mention it's low in fat, high in protein and nutrients, and a great option for people. However, others say that it'll give them the s***s if they eat too much of it.

"...Great protein mix, but I sometimes I feel like it would be easier to eat 5 chicken breasts too reach the same calorie goal, than to put down 48..." Read more

"tastes good but will make you bloated" Read more

"...maintenance and the additional vitamins and minerals are a great source for supplements...." Read more

"...He did gain a few pounds but too much sugar to be healthy and you have to use so much to get results." Read more

What They Don't Tell You
3 Stars
What They Don't Tell You
What they tell you. It tastes great and is a good supplement to build mass.What they don't tell you. Each serving consist of 2 huge heaping scoops of powder and 24 ounces of fluid (water or milk). This combination results in 48 ounces of liquid delight that they claim is a single serving. On what planet is 48 ounces a single serving? To put this in perspective, that is 2 full to the brim Shaker bottles that are intended to be consumed as one serving. 340 grams of powder from one serving translates into 3/4 of a pound of powder. Again to put this into perspective, the huge tub of powder you will recieve equals ONLY 8 advertised servings.The other thing they don't tell you is the powder is so fine and gummy that the only way to prepare the drink is to use a full sized blender. No Shaker bottles here. Preparing this mix is a mess. The powder is so fine that it creates a gummy mess that adheres to the side of the blender like Venom on Eddie Brock. Prepare to spend a significant amount of time coaxing the paste free to get it to properly mix.Great protein mix, but I sometimes I feel like it would be easier to eat 5 chicken breasts too reach the same calorie goal, than to put down 48 ounces. I realize that it can be broken up throughout the day, but so can multiple meals. There is also the option of using another protein supplement with a realistic serving size, multiple times a day. In the end, I feel like that is all they have done with this product. They have combined a multiple dose, throughout the day protein powder into a single serving, trying to advertise it as a solution that they obviously have not solved.
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Top reviews from the United States

Reviewed in the United States on May 10, 2020
Flavor Name: StrawberrySize: 12 Pound (Pack of 1)Verified Purchase
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5.0 out of 5 stars Works Great but...
Reviewed in the United States on May 10, 2020
6'2 150 pounds unhappy with my body wanting to gain body weight, muscle and strength 12/5/19

I did and to this day eat 6 meals a day: breakfast, snack, lunch, snack, supper, snack. then bed. this in the past was not even enough to gain the kind of weight, and muscle i was looking for. and believe me i was not skimpy on servings. And researched my diet extensively...i am not going to bore you with the normal Eggs oatmeal rice nut (haha) green stuff...extra..
But as any extreme diet program that i had cooked up for myself the endless Cooking, packaging, taking food to work eating every 10min break and obviously lunch time began to get exhaustive and i found myself cheating or just skiping eating "sessions" which gets expensive and is annoying and discouraging... also eating and trying to gain weight when you are under weight is hard! just eating enough is a mental battle in itself.
I ordered my first bag of Serious Mass in January 2020 i initially daunted by the huge doses required i decided take half sevings (one scoop) and to stick with my regular eating habits but integrate the Serious Mass into between meals. i also slightly dial back the amount I was eating for snacks. (like a handful of almonds or some peanut butter) Well i can tell you this stuff works great I noticed a huge difference in my hunger levels and in the amount of muscle I was gaining and weight.
4/9/20 as of today i weigh 190lbs and am still lean. great product. i take only half scoops whole is to much for me.
My meal plan now: Breakfast, Serious Mass, Snack, Lunch, Snack, (Workout after work) Supper, Serious Mass, Snack, (Bed)
Using this product sparingly even has greatly increaseed my results and weight gain i am very happy.
Now a few tips.( i have bought 5 bags)
Flavors: Chocolate. heavy not good for morningsbut good.
Banana. very sweet but light and good for morning.
Strawberry. mix of both (i got tired of it tho)
Mixing:
Do yourself a favor and get a 32 oz + shaker cup two heaping scoops is one serving will almost not fit in a 32 oz shaker cup dry! so take it in half servings and space it out.
Also do not put the Shaker ball in first it will be a dough ball. put your Serious Mass in your shaker cup add milk or water shake it up. there will be some clumps so then add the shaker ball in and shake again. this will give you the best consistency.
This stuff tastes like cake mix and can be hard to drink( just kinda thick) If you use water it will make it so much easier to drink after working out especially. (In the picture is 2 scoops on a small plate to give you an idea of the amount)
Over all great product! VERY happy with it!
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143 people found this helpful
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Reviewed in the United States on January 6, 2024
Flavor Name: ChocolateSize: 8 Servings (Pack of 1)Verified Purchase
12 people found this helpful
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Reviewed in the United States on July 31, 2013
Flavor Name: ChocolateSize: 8 Servings (Pack of 1)Verified Purchase
38 people found this helpful
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Reviewed in the United States on February 13, 2024
Flavor Name: ChocolateSize: 8 Servings (Pack of 1)Verified Purchase
2 people found this helpful
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Reviewed in the United States on March 16, 2024
Flavor Name: ChocolateSize: 8 Servings (Pack of 1)Verified Purchase
Reviewed in the United States on March 7, 2024
Flavor Name: ChocolateSize: 8 Servings (Pack of 1)Verified Purchase

Top reviews from other countries

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Awane
5.0 out of 5 stars Mon frère ne jure que par ça
Reviewed in France on January 1, 2024
Flavor Name: StrawberrySize: 12 Pound (Pack of 1)Verified Purchase
Sergio
5.0 out of 5 stars Ganador de Masa Muscular
Reviewed in Spain on November 28, 2023
Flavor Name: ChocolateSize: 8 Servings (Pack of 1)Verified Purchase
6 people found this helpful
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5.0 out of 5 stars 総評めちゃくちゃいい
Reviewed in Japan on February 8, 2024
Flavor Name: ChocolateSize: 8 Servings (Pack of 1)Verified Purchase
One person found this helpful
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thanchetyeume
5.0 out of 5 stars good
Reviewed in Japan on October 11, 2021
Flavor Name: Chocolate Peanut ButterSize: 12 Pound (Pack of 1)Verified Purchase
Văn Huy
1.0 out of 5 stars it's really hard to drink
Reviewed in Japan on April 1, 2021
Flavor Name: StrawberrySize: 12 Pound (Pack of 1)Verified Purchase
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Văn Huy
1.0 out of 5 stars it's really hard to drink
Reviewed in Japan on April 1, 2021
it's really hard to drink , I bought it and left it unused🥺
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Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.