Serious Mass Weight Gainer
Optimum Nutrition

Serious Mass Weight Gainer

High Energy Protein Powder Contributing to Muscle Growth
Loaded with 1258 kcal, 250g of Carbs, & 25 Vitamins and Minerals
8.5  out of 10  (1,142 Reviews)
Save 13%
Order and automatically receive 13% Off Serious Mass, 5.45 Kilograms!
Save 22%
Order and automatically receive 22% Off Serious Mass, 2.73 Kilgorams!

Product Overview

Serious Gains Serious Taste!

Gold Standard Whey Container

Serious Mass is the ultimate in weight gain formulas, with 1250 calories per serving and 50 grams of protein to support muscle growth and repair. This instantised powder makes the ideal post work-out and between meals shake for sizing up your goals.

Serious Mass provides you with the tools you need to pack on the pounds and when coupled with serious weight room effort develop your physique to the fullest.

24g Protein

50g Protein

Tasty Foods

Muscle Support

Award

1250 Calories

Award

Weight Gain

Ratings & Reviews

Serious Mass Weight Gainer
Overall Rating
8.5
1,142 Ratings
Verified Buyer Rating
8.6
446 Ratings
Average Flavor Rating
8.0
7 Flavors
Top Rated Flavor
8.9
Chocolate Peanut Butter
By clicking the button above, you agree to entering the Bodybuilding.com Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Mar 27, 2020
9
Verified Buyer
  • 9 Vanilla

I use a scoop of this (625 cal, 25g of protein) and a scoop of syntha-6 vanilla protein. I blend it, and it comes out to 825 cal, 47g of protein after my afternoon workout. The flavor that comes out of this is awesome, tastes great and is filling as heck. Serious mass alone flavor is great too, I've put on roughly 13 pounds in 3 months, a lot of muscle but some fat included. It's just what happens unless you are tracking your exact macros/etc which I don't. Happy with this product

Mar 24, 2020
9
 
  • 9 Chocolate Peanut Butter

Really good mass gainer which helped me get 15 pounds of weight. I really like the chocolate peanut butter flavour. I took 2 scoops of mass gainer twice a day and beleive me it has seriously good results.

Mar 16, 2020
10
Verified Buyer
  • 8 Chocolate Mint
  • 8 Chocolate

Great weight gainer- helped me put on 10kgs in just a few months. Doesnt mix particularly well, so I'd recommend a blender if possible. Choc Mint flavour has some poor reviews but I really like it (although it kinda grew on me- the first time I didn't like it that much). I split the portions into 2, as 1200 calories in a single hit is quite a lot. I have half a serving twice a day and have definitely reaped the rewards (especially coming from someone who struggles like hell to put on any weight). 10/10 would recommend.

Mar 10, 2020
10
Verified Buyer
  • 9 Chocolate Peanut Butter

Bomb *** flav

Feb 23, 2020
9
 
  • 10 Chocolate

I’m very sensitive to Proteins or Mass Gainers because of the ingredients and always get migraines leaving me sick for days while taking them. But ON products don’t do that to me. And being a hard gainer I need that few hundred to thousand extra calories in my diet, ya’ll know what I’m talking lol Taking this while on a solid diet and a solid work out routine has helped a lot to gain weight. It’s always going to be a struggle for a hard gainer even while taking a mass gainer but if you are consistent then it will pay off.

Feb 18, 2020
10
Verified Buyer
  • 9 Chocolate

Allright, im just the skeptic guy, who never try this kind of product, i just had mindset it is a scam... But... Im about 180cm tall and last 3years i had only 61kg (+/-0,5kg) I work as a mechanic, so its kind of job where you burn a lot of calories just doing it. I bought this Serious Mass Gainer, and im happy like never.... But its not only about this, i started to read and go through loads of tips on bodybuilding.com and i found out why i never gain any weight... So i start to eat proper food, not just quick snacks during the work hours... For last 2 weeks, for first time in my life a had EVERY day breakfast and morning snacks, WHOLE meal Lunch, WHOLE meal dinner and this gainer after light excercise in night... Results for ME are INCREDIBLE! After two weeks, i moved from 61,5kg to 63,7kg!!! Even now i feel better, more confident and full of energy thanks to healthy life style. Im not doing this to gain serious muscles, i just dont want to by the slim guy. So, if you willing to try this, go for it, but not only for this gainer alone... I wish you good luck on your way, its worth it. Massive thanks to Bodybuilding.com for usefull information that they are sharing!

Feb 14, 2020
9
Verified Buyer
  • 9 Banana

I’ve used chocolate for too long and the banana was a good change up! The guy below saying the banana is awful, not true. It pretty much tastes like banana laffy taffy! So if you like those, you like the banana. Other than that, it’s just calories to gain weight.

Dec 20, 2019
10
 
  • 10 Banana

it works! not much more to say!

Nov 23, 2019
9
Verified Buyer
  • 9 Chocolate

it tastes good

Nov 19, 2019
10
 

nice product <a href="#">serious mass</a>

Nov 13, 2019
9
Verified Buyer
  • 8 Vanilla
Nov 02, 2019
9
Verified Buyer
  • 7 Chocolate

Last year, I started going to the gym 3 days a week for lacrosse. I'm a teen, I've been growing quite a lot. Last year I was 5'7 at 115, So somewhat small, but once the year was over I was 6'0 at 125. I didn't really know how to gain weight fast enough to keep up with my height. This lead to me seeing very little progress in the gym and in my overall physique. I really hated getting called skinny and underperforming in the gym so I decided I needed to gain some weight. I started using this about a month ago, starting at 130lb, and now I'm 140. I didn't just use the shake alone though. My recipe is as follows: *16oz of milk *3-4 tablespoons of peanut butter *One cup of protein powder (half the overall serving size) *1 banana *and 3ish scoops of chocolate ice cream (I know it's not great but it tastes like sh*t without) -Overall calories for this is around 1700 and the protein is 62g I take two of these a day along with my normal diet so I'm taking in around 5000 calories a day. I'm also training 4 days a week with 1-2 days of cardio a week So if you're trying to bulk and are skinny, I would recommend

Sep 22, 2019
10
Verified Buyer

Very Good Product. I recommend it. I have a question though, the expiring date is DD/MM/YY or MM/DD/YY? Thank you in advance for your help

Sep 13, 2019
10
Verified Buyer
  • 10 Vanilla

Vanilla is the best flavor and it mixes well with water, milk or in smoothies. Definitely prefer this over the Optimum Pro Gainer.

Aug 17, 2019
10
Verified Buyer
  • 10 Strawberry

I’m happy with this product. Best food for my muscles 👍

3 Sizes
2.73 Kilograms
Choose a Size
{{vm.group.name}}
{{group.violatorText}} {{group.name}}
{{group.skus[0].inventory.labelDisplay}}
{{group.salePriceDisplay}}
{{group.strikePriceDisplay}}
4 Flavors
Banana
Choose a Flavor
{{vm.sku.name}}
{{sku.name}}
Flavor Rating: {{sku.flavorRating | flavorRating}}
{{sku.inventory.labelDisplay}}
{{vm.group.violatorText}}
Save 22%
Was:  £26.99
Was:  {{vm.group.strikePriceDisplay}}
Price: £21.05  (£2.63 / Serving)
Flavor Rating: 7.9
Loaded with 1258 kcal, 250g of Carbs, & 25 Vitamins and Minerals

What's in Optimum Nutrition Serious Mass Weight Gainer

6 Lbs. Banana
Supplement Facts
Serving Size2Scoops(334g)
Servings Per Container8
Per 334g
Energy 5273kJ
1259kcal
Protein 53.1g
Total Carbohydrate 251.4g
Of Which Sugars 29.7g
Total Fat 4.4g
Of Which Saturates 1.3g
Of Which Trans Fat 0g
Dietary Fiber 0g
Sodium 605mg
Vitamin A 299.3mcg
Vitamin D 1.9mcg
Vitamin E 3.5mg
Vitamin C 21.9mg
Thiamin (Vitamin B1) 0.5mg
Riboflavin (Vitamin B2) 0.6mg
Niacin (Vitamin B3) 6.7mg
Vitamin B6 0.7mg
Folic Acid 71.3mcg
Vitamin B12 0.5mcg
Biotin 54.8mcg
Pantothenic Acid (Vitamin B5) 2.1mg
Potassium 1,229mg
Chloride 649mg
Calcium 556.2mg
Phosphorus 190.7mg
Magnesium 74.1mg
Iron 4.3mg
Zinc 4.8mg
Copper 0.6mg
Manganese 0.7mg
Selenium 26.8mcg
Chromium 130.4mcg
Iodine 66mcg
Creatine Monohydrate 1g
L-Glutamine 501mg
Glutamine Peptides 501mg
Choline Bitartrate 607.9mg
Inositol 250.5mg
Ingredients:
Maltodextrin, Protein Blend (Whey Protein Concentrate*, Calcium Caseinate*, Egg Albumen), Flavorings, Mineral Blend (Di-Potassium Phosphate, Sodium Chloride, Ferric Pryophosphate, Zinc Oxide, Copper Gluconate, Manganese Sulfate, Chromium Chloride Hexahydrate, Potassium Iodide), Whey Powder*, Medium Chain Triglycerides, Creatine Monohydrate, Color (Curcumin), Choline Bitartrate, L-Glutamine, Glutamine Peptides, Acidity Regulator (Malic Acid),, Inositol, Vitamin Blend (Dextrose Monohydrate, Ascorbic Acid, Vitamin E Acetate, Niacinamide, Biotin, Vitamin A Acetate, Calcium-D-Pantothenate, Pyridoxine Hydrochloride, Folic Acid, Cholecalciferol, Thiamin Hydrochloride, Riboflavin, Cobalamin), Sweetener (Sucralose).
* From Milk
Allergen Information:
Contains Milk, Egg, Wheat (Gluten)

Directions For Serious Mass Weight Gainer:

Add two heaping scoops of Serious Mass to a blender filled with 24 oz (710 mL) of water. Blend for 45-60 seconds. Then add a few ice cubes and, if desired, other calorie-contributing ingredients and blend for an additional 30-45 seconds.

Tips: Mixing two scoops of Serious Mass with 24 oz (710 mL) of nonfat or low fat milk instead of water will give you a thicker, creamier, higher-calorie shake. New users may find if beneficial to begin with 1/2 of a serving daily for the first week and then gradually increase to 1 or more full servings several times a day.

Serious Mass is a substantial weight-management supplement that can be used to feed serious calorie needs in a variety of different ways.

Between Meals: Drink 1/2-1 serving of Serious Mass between meals to maintain and support muscle growth as well as contributing to a high-calorie diet.

Post-Workout: Begin drinking 1/2-1 serving of Serious Mass 30-45 minutes following exercise to support muscle growth. Before Bed: Drink 1/2-1 serving of Serious Mass about 45-60 minutes before bed to provide nutrients to help maintain 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.

Warnings: Do not exceed the recommended daily dose. Keep out of reach of children. 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, hypoglycemia, and/or if you are taking any prescription or OTC medication(s). Food supplements should not be used as a substitute for a varied diet. Store in a cool, dry place.

Flavoured Ready to Mix Powder with Protein, Carbohydrates, Vitamins, and Minerals, with Sweetener.

Made in the UK

OPTIMUM NUTRITION: 4 Waterside, Kingswood Avenue, Citywest Business Campus, Dublin 24, Ireland

* 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.
Learn more about Whey Protein.
Check out other Performance Products.