Optimum Nutrition, Serious Mass, Banana, 6 lbs (2.72 kg)

by Optimum Nutrition
Save 17%


  • 50 g Protein
  • 254 g Carbs
  • 25 Vitamins & Minerals
  • Naturally & Artificially Flavored
  • 1250 Calories
  • Dietary Supplement

The True Strength Of Weight Gainers

Serious weight gain requires serious calories. However, those who need the extra calories most often have the toughest time consuming enough of them. For many aspiring to be bigger, a highly-active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone. With Serious Mass, you've not nothing to lose and lots to gain. We've consolidated 1,250 calories, 50 grams of protein, 254 grams of carbohydrates, 25 vitamins & minerals, glutamine and creatine into every serving. It's time to stop thinking small; get serious - Serious Mass.

Supercharge Your Serious Mass
By adding one or more of these foods to your shake.
Serving Size Calories Serving Size Calories
1/2 cup Granola 250 1 tbsp Flaxseed Oil 115
1/4 cup Chocolate Chips 198 1/2 cup Oat Bran 108
2 tbsp. Peanut Butter 190 1 small Banana 105
1 oz. Almonds 167 1 tbsp. Honey 64
1 oz. Peanuts 164 1 tbsp. Molasses 43
1/2 cup Ice Cream 160      
1 cup Whole Milk 150      
1/2 cup Coconut 139      

Beyond The Basics

  • 1,250 Calories per Serving in Water; 1,640 Calories When Made with Low Fat Milk.
  • 50 Grams of Protein.
  • 254 Grams of Carbohydrates to Support Fueling of Intense Workouts and Aid in the Replenishing of Glycogen Stores - with No Added Sugar.
  • Creatine, L-Glutamine & Glutamine Peptides, Choline, Inositol and PABA.
  • 5 Grams of Dietary Fiber Per Serving
  • Ideal for Stacking with Other Size-Supporting Ingredients

Suggested 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 (see "Supercharge Your Serious Mass" on the opposite panel) and blend for an additional 30-45 seconds. Tips: 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 it 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 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 Serious Mass between meals to maintain positive nitrogen balance and support a high-calorie diet. Post-Workout: Begin drinking 1/2 - 1 serving of Serious Mass 30-45 minutes following exercise to support maximum recovery. 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.

Serving scoops included, but may settle to the bottom during shipping.

Other Ingredients

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.

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


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 that are pregnant, trying to get pregnant, or nursing.

Supplement FactsServing Size: 2 Heaping Scoops (334 g)Servings Per Container: Amount Per Serving in water% Daily ValueAmount Per Serving in water in low fat milk% Daily ValueCalories1250 1640 Calories from Fat35 170 Total Fat4 g6%*19 g29%*Saturated Fat2.5 g13%*12 g60%*Cholesterol80 mg27%140 mg47%Total Carbohydrate254 g85%*293 g98%*Sugars21 g†57 g†Protein50 g100%*74 g148%*Vitamin A5000 IU100%6500 IU130%Vitamin C60 mg100%66 mg110%Vitamin D200 IU50%500 IU125%Vitamin E30 IU100%30 IU100%Thiamin4.8 mg320%5.1 mg340%Riboflavin4 mg235%5.2 mg306%Niacin50 mg250%50.6 mg253%Vitamin B65 mg250%5.3 mg265%Folic Acid400 mcg100%436 mcg109%Vitamin B1210 mcg167%12.7 mcg212%Biotin300 mcg100%300 mcg100%Pantothenic Acid25 mg250%27 mg270%Calcium630 mg63%1400 mg140%Iron5 mg28%5.3 mg29%Phosphorus460 mg46%1160 mg116%Iodine150 mcg100%150 mcg100%Magnesium140 mg35%239 mg60%Zinc15 mg100%18 mg120%Selenium70 mcg100%70 mcg100%Copper1 mg50%1 mg50%Manganese2 mg100%2 mg100%Chromium120 mcg100%120 mcg100%Molybdenum75 mcg100%75 mcg100%Sodium430 mg18%820 mg34%Potassium940 mg27%2170 mg62%Creatine Monohydrate1 g†1 g†L-Glutamine500 mg†500 mg†Glutamine Peptides500 mg†500 mg†Choline (as choline bitartrate)250 mg†250 mg†Inositol250 mg†250 mg†PABA (para-aminobenzoic acid)5 mg†5 mg†* Percent Daily Values are based on a 2,000 calorie diet. 
† Daily Value not established.