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Product Rating

Overall: 9.1/10
Effectiveness: 9/10
Value: 9.5/10
#Reviews: 4

Flavour Rating

Overall: 7/10
Chocolate: 9.0/10
Vanilla: 5.0/10

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Optimum Nutrition

Optimum Serious Mass (No Sugar Added)

Vitamart Price:  $74.97
Quantity (2 available) 
In Stock
Frequently Bought Together For Only $111.96
Optimum Serious Mass (No Sugar Added)
Optimum Serious Mass (No Sugar Added)

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Progressive MultiVitamins For Active Men

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Optimum Serious Mass Details

Serious Mass: the ULTIMATE in weight gain formulas. Serious Mass supplies you with the tools you need to pack on the pounds and develop the physique you've always wanted.

Beyond The Basics

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

Optimum Serious Mass (No Sugar Added) Reviews*

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Product rating*

Product Rating: 9.1/10

Customer Reviews*

  • 8.2/10  Impressive

    By Clive on Friday, April 29, 2016 05:26 AM

    Effectiveness: 8/10

    (+) Boosts Energy,Easy To Take,First Dose Results,Good Value,Mixes Well

    How did you use it?:Between Meals

    "I was very impressed with the release of energy after taking only half a serving. Give all the minerals that are present in a his protein I now wonder whether I should continue to take my multivitamins. Since I began consuming this protein, I have decided to skip supper as a way of reducing belly fat.......I have found that my hunger is sufficiently suppressed so as to make my aspirations more achievable.

    My only concern with this product is the volume of a scoop.

    I have only being using this product for one week."

    Would you buy this product again? Yes

    Flavours Rating
    Vanilla   5
    Verified by Vitamart Purchaser

    Was this review helpful?  Yes   No  

  • 9.9/10  Great Product

    By Josh on Friday, June 19, 2015 08:14 AM

    Effectiveness: 10/10

    (+) Builds Muscle,Easy To Take,Mixes Well

    How did you use it?:After Exercise,Every Morning

    "I've been taking Serious Mass for about 4.5 months now. In that time, I've gained 12lbs, almost entirely muscle. I have a half serving right after getting out of bed and then another half serving after my workout. It mixes well with just a shaker bottle and actually tastes pretty good! Also the nutrition these shakes deliver is some of the best I've found in a gainer. It's not all sugar and provides a great level of vitamins and minerals. I would highly recommend, and actually already have to a few people!"

    Would you buy this product again? Yes

    Flavours Rating
    Chocolate   9
    Verified by Vitamart Purchaser

    Was this review helpful?  Yes   No  

  • 8.2/10  phew!

    By John Love on Wednesday, January 14, 2015 02:36 PM

    Effectiveness: 8/10

    (+) Easy To Take,Good Value,Mixes Well,Tastes Great

    How did you use it?:Everyday

    "Finally a weight gainer without you having to drink just sugar!"

    Would you buy this product again? Yes

    Flavours Rating
    Chocolate   9
    Verified by Vitamart Purchaser

    Was this review helpful?  Yes   No  

  • 9.9/10  Serious mass

    By grrr on Tuesday, April 8, 2014 08:15 AM

    Effectiveness: 10/10


    How did you use it?:Before Exercise,After Exercise,Everyday,Before Bed

    "Love it !"

    Would you buy this product again? Yes

    Flavours Rating
    Chocolate   9
    Verified by Vitamart Purchaser

    Was this review helpful?  Yes   No  

*Review Disclaimer: Not everyone has these results. Product experiences vary from person to person. Please use these reviews for information only as they have not been reviewed by a medical professional. Do not substitute the informatioin in the reviews for advice from your physician or other health care professional or any information contained on or in any product label or packaging.

Suggested Use


Add two heaping scoops of Optimum 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.

Tips: Mixing two scoops of Optimum 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 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-gain supplement that can be used to feed serious calorie needs in a variety of different ways.

Between Meals: Drink 1/2-1 serving of Optimum Serious Mass between meals to maintain positive nitrogen balance and support a high-calorie diet. Post-Workout: Begin drinking 1/2-1 serving of Optimum Serious Mass 30-45 minutes following exercise to support maximum recovery. Before Bed: Drink 1/2-1 serving of Optimum Serious Mass about 45-60 minutes before bed to provide nutrients to recovering muscle throughout the night.

Note: For best results use Optimum 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.

Nutrition Facts
Serving Size: 2 Heaping Scoops (334 g)
Servings per Container: 16
Amount Per Serving in Water
% Daily Value *
     Calories From Fat
Total Fat 4.5 g 7%
     Saturated Fat 1.5 g 8%
80 mg
Total Carbohydrate
252 g
84 %
20 g

50 g
 Vitamin A 5000 IU 100%
 Vitamin C 60 mg 100%
 Vitamin D 200 IU 50%
Vitamin E 30 IU 100%
Thiamin 4.8 mg
 Riboflavin    4 mg 235%
Niacin     50 mg 250%
Vitamin B6 5 mg 250%
Folic Acid 400 mcg 100%
Vitamin B12 10 mcg 167%
Biotin     300 mcg 100%
Pantothenic Acid 25 mg 250%
Calcium     630 mg 63%
Iron     5 mg
Phosphorus     460 mg 46%
Iodine    150 mcg 100%
Magnesium    140 mg 35%
Zinc    15 mg 100%
Selenium    70 mcg 100%
Copper    1 mg 50%
Manganese    2 mg 100%
Chromium     120 mcg 100%
Molybdenum       75 mcg 100%
Sodium    430 mg 18%
Potassium    970 mg 28%
Creatine Monohydrate 1 g
L-Glutamine 500 mg
Glutamine Peptides 500 mg

Choline (As Choline Bitartrate) 250 mg
Inositol    250 mg
PABA (Para-Aminobenzoic Acid) 5 mg
* Percent daily values are based on a 2000 calorie diet
  † Daily Value not established
Note: Serving Sizes are rounded to the nearest whole serving

Additional 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.

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

Warning: 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).

Product Disclaimer

The products and the claims made about specific products on or through this site have not been evaluated by or the Canadian Food and Drug Administration and are not approved to diagnose, treat, cure or prevent disease. The information provided on this site is for informational purposes only and is not intended as a substitute for advice from your physician or other health care professional or any information contained on or in any product label or packaging. You should consult with a healthcare professional before starting any diet, exercise or supplementation program, before taking any medication, or if you have or suspect you might have a health problem. is not responsible for any statements or claims that various manufacturers make about their products or the general information provided for each product on this website. We cannot be held responsible for typographical errors or product formulation changes. Please consult with your own physician or health care practitioner regarding the suggestions and recommendations made at and especially before using any product sold on this website.