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Optimum Nutrition

Optimum Nutrition Serious Mass 12 lbs

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High-Protein Mass Gain Powder - Optimum Nutrition Serious Mass 12 lbs

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 Serious Mass 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. This blend contains whey concentrate, whey isolates, casein protein, egg protein, creatine, and glutamine. Serious Mass is a substantial weight-gain supplement that can be used to feed serious calorie needs in a variety of different ways.

Serious Mass Benefits

  • 1,250 calories
  • 50g of blended protein
  • Over 250g of carbohydrates with no added sugar
  • Creatine, Glutamine, and Glutamic acid
  • 25 vitamins and essential minerals
  • Helps build & maintain muscle
  • Boosts calorie intake

Serious Mass Flavors

  • Banana
  • Chocolate
  • Chocolate Peanut Butter
  • Strawberry
  • Vanilla

Serious Mass Gainer How to Use

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 and blend for an additional 30-45 seconds.Mixing two scoops of Serious Mass with 24 oz. 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.

To Take Serious Mass Between Meals: Drink 1/2-1 serving of Serious Mass between meals to maintain positive nitrogen balance and support a high-calorie diet.

To Take Serious Mass Post-Workout: Begin drinking 1/2-1 serving of Serious Mass 30-45 minutes following exercise to support maximum recovery.

To Take Serious Mass 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.

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.

Serious Mass Stacks Well With...

Serious Mass Allergen Information

Contains milk, egg, wheat (glutamine peptides), and soy (lecithin) ingredients.

Serious Mass Nutrition Facts

Supplement Facts - 12 Lbs. Chocolate (may change depending on flavor)

Serving Size: 2 Heaping Scoops (334g)

Amount Per Serving In Water % Daily Value

Calories 1250

Calories From Fat 40

Total Fat 4.5g 7%*

Saturated Fat 1.5g 8%*

Cholesterol 80mg 27%

Total Carbohydrate 252g 84%*

Dietary Fiber 4g 16%*

Sugars 20g †

Protein 50g 100%*

Vitamin A 5000IU 100%

Vitamin C 60mg 100%

Vitamin D 200IU 50%

Vitamin E 30IU 100%

Thiamin 4.8mg 320%

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%

Phosphorus 430mg 43%

Iodine 150mcg 100%

Magnesium 140mg 35%

Zinc 15mg 100%

Selenium 70mcg 100%

Copper 1.6mg 80%

Manganese 2mg 100%

Chromium 120mcg 100%

Molybdenum 75mcg 100%

Sodium 410mg 17%

Potassium 1560mg 45%

Creatine Monohydrate 1g †

L-Glutamine 500mg †

Glutamine Peptides 500mg †

Choline (As Choline Bitartrate) 250mg †

Inositol 250mg †

PABA (Para-Aminobenzoic Acid) 5mg †

* Percent Daily Values are based on a 2,000 calorie diet

† Daily Value not established

Other Ingredients: Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumin, Sweet Dairy Whey), Cocoa (Processed With Alkali), Natural And Artificial Flavor, Vitamin And Mineral Blend (DiPotassium Phosphate, Magnesium Aspartate, DiCalcium Phosphate, Calcium Citrate, Ascorbic Acid, Niacinamide, Zinc Citrate, Beta Carotene, D-Calcium Pantothenate, D-Alpha Tocopheryl Succinate, Selenomethionine, Copper Gluconate, Ferrous Fumarate, Manganese Amino Acid Chelate, Thiamin Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Chromium Polynicotinate, Folic Acid, Biotin, Molybdenum Amino Acid Chelate, Cholecalciferol, Potassium Iodide, Cyanocobalamin), Acesulfame Potassium, Lecithin, Medium Chain Triglycerides.

Allergen Information: Contains Milk, Egg, Wheat (Glutamine Peptides) And Soy (Lecithin) Ingredients.

Serious Mass Ingredients & Labels

See the specific ingredient breakdown of Serious Mass and its different flavors below:

Banana

Serious Mass Banana

Chocolate

Serious Mass Chocolate

Chocolate Peanut Butter

Serious Mass Chocolate Peanut Butter

Strawberry

Serious Mass Strawberry

Vanilla

Serious Mass Vanilla

Serious Mass Other Ingredients

  • Banana: Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumin, Sweet Dairy Whey), Natural And Artificial Flavors, Vitamin And Mineral Blend (DiPotassium Phosphate, Magnesium Aspartate, DiCalcium Phosphate, Calcium Citrate, Ascorbic Acid, Niacinamide, Zinc Citrate, Beta Carotene, D-Calcium Pantothenate, D-Alpha Tocopheryl Succinate, Selenomethionine, Copper Gluconate, Ferrous Fumarate, Manganese Amino Acid Chelate, Thiamin Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Chromium Polynicotinate, Folic Acid, Biotin, Molybdenum Amino Acid Chelate, Cholecalciferol, Potassium Iodide, Cyanocobalamin), Medium Chain Triglycerides, Lecithin, Malic Acid, Acesulfame Potassium, Sucralose, FD&C Yellow #5.
  • Chocolate: Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumin, Sweet Dairy Whey), Cocoa (Processed With Alkali), Natural And Artificial Flavor, Vitamin And Mineral Blend (DiPotassium Phosphate, Magnesium Aspartate, DiCalcium Phosphate, Calcium Citrate, Ascorbic Acid, Niacinamide, Zinc Citrate, Beta Carotene, D-Calcium Pantothenate, D-Alpha Tocopheryl Succinate, Selenomethionine, Copper Gluconate, Ferrous Fumarate, Manganese Amino Acid Chelate, Thiamin Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Chromium Polynicotinate, Folic Acid, Biotin, Molybdenum Amino Acid Chelate, Cholecalciferol, Potassium Iodide, Cyanocobalamin), Acesulfame Potassium, Lecithin, Medium Chain Triglycerides.
  • Chocolate Peanut Butter: Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumen, Sweet Dairy Whey), Cocoa (Processed with Alkali), Natural and Artificial Flavors, Vitamin and Mineral Blend (Dipotassium Phosphate, Magnesium Aspartate, Dicalcium Phosphate, Calcium Citrate, Ascorbic Acid, Niacinamide, Zinc Citrate, Beta Carotene, D-Calcium Pantothenate, D-Alpha Tocopherol Succinate, Selenomethionine, Copper Gluconate, Ferrous Fumarate, Manganese Amino Acid Chelate, Thiamin Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Chromium Polynicotinate, Folic Acid, Biotin, Molybdenum Amino Acid Chelate, Cholecalciferol, Potassium Iodide, Cyanocobalamin), Medium Chain Triglycerides, Creamer (Sunflower Oil, Maltodextrin, Modified Food Starch, Dipotassium Phosphate, Tricalcium Phosphate, Tocopherols), Lecithin, Salt, Sucralose, Acesulfame Potassium
  • Strawberry: Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumin, Sweet Dairy Whey), Artificial Flavors, Vitamin And Mineral Blend (DiPotassium Phosphate, Magnesium Aspartate, DiCalcium Phosphate, Calcium Citrate, Ascorbic Acid, Niacinamide, Zinc Citrate, Beta Carotene, D-Calcium Pantothenate, D-Alpha Tocopheryl Succinate, Selenomethionine, Copper Gluconate, Ferrous Fumarate, Manganese Amino Acid Chelate, Thiamin Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Chromium Polynicotinate, Folic Acid, Biotin, Molybdenum Amino Acid Chelate, Cholecalciferol, Potassium Iodide, Cyanocobalamin), Medium Chain Triglycerides, Lecithin, FD&C Red #40, Acesulfame Potassium.
  • Vanilla: Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumin, Sweet Dairy Whey), Artificial Flavors, Vitamin And Mineral Blend (DiPotassium Phosphate, Magnesium Aspartate, DiCalcium Phosphate, Calcium Citrate, Ascorbic Acid, Niacinamide, Zinc Citrate, Beta Carotene, D-Calcium Pantothenate, D-Alpha Tocopheryl Succinate, Selenomethionine, Copper Gluconate, Ferrous Fumarate, Manganese Amino Acid Chelate, Thiamin Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Chromium Polynicotinate, Folic Acid, Biotin, Molybdenum Amino Acid Chelate, Cholecalciferol, Potassium Iodide, Cyanocobalamin), Medium Chain Triglycerides, Lecithin, Acesulfame Potassium.

Serious Mass Side Effects

Warnings: 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).

References

Millward DJ, Layman DK, Tomé D, Schaafsma G. Protein quality assessment: impact of expanding understanding of protein and amino acid needs for optimal health. Am J Clin Nutr. 2008;87(5):1576S–1581S. doi:10.1093/ajcn/87.5.1576S

https://pubmed.ncbi.nlm.nih.gov/18469291-protein-quality-assessment-impact-of-expanding-understanding-of-protein-and-amino-acid-needs-for-optimal-health/

Buckley JD, Thomson RL, Coates AM, Howe PR, DeNichilo MO, Rowney MK. Supplementation with a whey protein hydrolysate enhances recovery of muscle force-generating capacity following eccentric exercise. J Sci Med Sport. 2010;13(1):178–181. doi:10.1016/j.jsams.2008.06.007

https://pubmed.ncbi.nlm.nih.gov/18768358-supplementation-with-a-whey-protein-hydrolysate-enhances-recovery-of-muscle-force-generating-capacity-following-eccentric-exercise/

Customer Reviews
5.0 Based on 37 reviews
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Filter Reviews:
    SR
    03/01/2020
    Salome R.
    United States United States
    • Age? 36
    • Who would you recommend this product to? Hard Gainers or anyone trying to bulk.
    For the hard gainers...

    Over the past two months I have taken Serious Mass and a stack that I will review another time. Im currently deployed. In this time I have gained 20lbs which is unheard of for me. I have always maintained 145. Since i began hitting the gym and using Serious Mass I have come to weigh 165 in 2 months. It doesnt sound like much but all my weight gain has been proportionate to my body. There is no soggy portion of my body. I take a full serving just before bed and half a serving between lunch and dinner. Typically right after the gym. I couldn't be happier with the gains. My wife couldn't be happier with the pics. All in all this is an absolute must for those of us with a ridiculous metabolism that makes it difficult to naturally gain weight. If I could post pics I would.

    Best Price Nutrition Optimum Nutrition Serious Mass 12 lbs Review
    B
    03/09/2017
    BOB!
    Average Weight Gainer

    I have been trying to gain weight for a few months now. While this did help (gained about 4 pounds to date), I liked the quickmass from allmax better. Just tasted better...more expensive though. On a tight budget so not sure which one to go with again next time.

    S
    09/07/2016
    Seth
    Good

    Mass gainer is a great way to get calories for those who are trying to bulk up. This product will not make you fat unless you way overshoot your calorie goals. For the people that are already pretty good at meeting their calorie goals for building this product may not be necessary. The other bad thing is how large the sample size is. It is a very big cup. If someone is just looking for protein should probably go with some whey or something similar.

    R
    08/25/2016
    Ron
    Great mass gainer

    Optimum nutrition 12 lbs serious mass is a great product and the price in incredible to! I have been taking this mass gainer for about 5 months now and i have gained about 20 pounds this is great for people like me with high metabolisms. If anyone is on the fence about buying this product i would say go for it. If you are a busy person and dont have time to eat a lot of calories or carbs this is great for you because in a seriving it has like1250 calories!! The one bad thing is that the scoop that comes with it is literally a cup and a serving is 2 scoops.

    L
    01/19/2016
    Lane
    good value, gained weight

    This is a good supplement to have around. I love taking mass gaining supplements, because I have an extremely high metabolism and it really is useful to be taking a mass gaining supp in order to get the extra calories and protein that my body needs in order to make some good quality muscle mass. I do not take prohormones or SARMS, so this is the closest thing I can get to taking supplements like that. I would swear by ON and mass gainers any day.

    C
    01/11/2016
    Christopher
    Taste and gained weight

    OPTIMUM NUTRITION SERIOUS MASS is a good weight gainer especially for the price. I feel very energized from all the carbs inside the shake. If you are a hard gainer, this product is for you. I take 1.5 scoops of it and it is not filling at all. In 4 months I gained 15 pounds of weight and was pretty happy with my look. Overall a good product. Worth the try!

    B
    11/08/2015
    Brandon
    Great for Gaining some Muscle

    mmm okay so where to being First off I love this product and keep it on hand always Serious Mass Is a Great shake to Put some weight on during a bulk! i find it tastes just so good fire a whole banana in there with your shake and your in heaven! Keep in mind though this shake is very thick so when i added fruits and yogurt it would be so thick i would find myself eating with a spoon lol but hey i had no issue with that it tastes so good i do agree they need to get a slower dissolving carb in the mix but you cannot go wrong with this Mass Gainer -Great Price -Tastes Amazing -Mixes well -High in Calories Give this Mass Gainer a try you wont regret it

    C
    11/03/2015
    Chris
    Gain weight

    Optimum Nutrition Serious Mass 12 lbs is an awesome way to gain mass. This is a very easy way to get in a lot of calories each day my a drink. The drink taste is pretty good and mixibility is also very good. The price of the product is not bad. The only wish I had with this product is to change the sugar to a slower digesting carb. Very thick and yummy drink. Hard gainers is a must buy.

    C
    08/30/2015
    COLE
    Good product

    This product is 12 lbs so can last a while if you have it twice a day and also has pretty high protein content. It makes for a good meal replacement because of the vitamins and is about 1250 calories per serving so if you have a fast metabolism and run like me then it will help temporarily curve hunger in between meals and is a good way to keep your protein intake pretty high

    B
    07/19/2015
    Bonsijoe
    High quality

    I burn a lot of calories in a day. I have tried other weight gainers and keep coming back to Serious Mass. I just wish they would reduce the amount of sugar. It is a concern for too many people including myself.

    P
    06/28/2015
    Peewee
    A very carb potent mass gainer.

    I hate to say bad things about Optimum Nutrition because they make such good products but this weight gainer was just ridiculous. I will say it tasted good as **** though. Im not sure exactly why they would bring out a weight gainer with so many carbs but yeah. For me personally this would have been a one way ticket to fat man land. The consistency was fairly thick but that is to be expected seeing it is full of carbs and calories. The price is very affordable also so you will not break the bank if you decide this product is for you.

    M
    04/19/2015
    Mike
    Gained nearly 30 pounds with this stuff

    This stuff will indeed help you pack on some serious mass. The way I used it was to eat my regular meals each day, getting in most if not all of my maintenance calories. Then at the end of the night about a half hour before bed, I'd consume a full serving of this stuff. In about 3 months I put on nearly 30 pounds. I mainly used the chocolate, but also a vanilla flavored one. The chocolate is overall the best tasting, but the vanilla was nice to mix half and half with the chocolate because you'll get sick of the flavor after a month or two. Make sure that if you use this stuff like I did that you are working out regularly and intensely. Do big, compound lifts. Also, count your calories to make sure you aren't going WAY over your maintenance calorie requirements. If you don't do both of these, you will likely gain more fat than muscle. I am an ectomorph, and for the first time in my life put on a thin layer of fat over my basically my whole body with this stuff. I definitely gained a lot of muscle too, but be warned, the potential for fat gain is there with the amount of carbs that are in this stuff.

    D
    11/08/2014
    Dustin
    Positive

    I have been using this as a bulk supplement for the last month. While I have made some gains, there are some side effects as well from cramping, fat gains, and joint pain. I started splitting the dosage into two shakes and that made a difference. The scoop is huge, making the two scoop serving size enough for two blender bottles. You have to blend if you want to take an entire does, and be prepared to slam 32 ounces or more. I use a blender bottle now with one serving and a serving of Gold STD and that blends fine in the bottle. I would recommend this, but not without being careful. You will gain size, but it will take a cutting cycle afterwards even if you watch your macros IMO.

    O
    10/14/2014
    Ozzy
    Works great

    This stuff works really well as. It's real thick so it takes a lot of mixing, but luckily the taste is great. I had the vanilla and was able to mix it with other juices pretty well. I usually only did one scoop, which still made for a large shake. Felt fine after drinking it too, no bloating or anything. Definitely gets the job done and helps significantly with size and strength gains.

    P
    10/01/2014
    Peyton
    decent

    Overall, it's a decent product. It definitely works well, but it is a little pricey and doesn't have the greatest taste. It gets the job done, but there are better products out there.

    M
    09/12/2014
    MaddLiftah
    Good Bulking Protien,clean with all the right stuff,Great for the little guys

    So this is one of my favorite weight geainer protiens. Although, people say there are others on the market much more superior. With 50g of protien in 2 scoops thats great.. with one problem the scoop is huge. legit like a shovel. all aside great protien. you will feel full. for added calories pair with whole milk. im lactose intolerant so i pair with water. makes it a little lighter on your stomach. One in the day and one after your workout should suffice just fine. The texture is a bit chaulky , but doesnt bother me too much. Saw great gains with lifting heavy. Great for someone trying to gain weight if your an ectomorph( have a high metabolism) im an endo so its great for adding weight to the chest and arms!

    T
    08/30/2014
    Tmoneyyy
    Works great to pack on a few extra CLEAN pounds

    Love Serious Mass - 5 stars. I have a tendency to lose weight when I exercise this product helps me maintain my weight sometimes I only use half of the directed amount chocolate taste great.

    E
    06/26/2014
    Emory
    Great product

    Lasted me a few months which was great, serves as a great supplement to a meal or even a meal replacement, was able to see sizeable gains while eating a lot and using Serious Mass 3x a day (I have a ****** high metabolism) nice **** for your buck!

    H
    02/15/2014
    HS
    Great Product

    I was recommended to try this and it really works. I gained 5 pounds in less than 2 weeks. I usually take half a serving in the morning and one in the evening with whole milk. It mixes pretty well. First put in half whole milk, then scoop of powder, then fill to the top with either water or whole milk. Water will make it more liquidy and lighter on your stomach.

    M
    01/31/2014
    mthurston0001
    Would buy again

    The flavor was a little sweet for me, but good. My only gripe w/ it is the giant serving size. Overall good.

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