Optimum Nutrition, Serious Mass, High Protein Weight Gain Powder, Chocolate Peanut Butter, 6 lbs (2.72 kg)

$51.99 $41.75

  • 50 reviews on iHerb, average rating: 3.9/5.0
  • Brand: Optimum Nutrition
  • Package Quantity: 6 lb
  • Weight: 7.73 lbs
  • Buy Now


    • 50 g Protein
    • 249 g Carbs
    • 25 Vitamins & Minerals
    • Naturally & Artificially Flavored
    • 1270 Calories
    • Dietary Supplement
    • True Strength

    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 got nothing to lose and lots to gain. We’ve consolidated 1,270 calories, 50 grams of protein, 249 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 SizeCaloriesServing SizeCalories
    1/2 cupGranola2501 tbspFlaxseed Oil115
    1/4 cupChocolate Chips1981/2 cupOat Bran108
    2 tbsp.Peanut Butter1901 smallBanana105
    1 oz.Almonds1671 tbsp.Honey64
    1 oz.Peanuts1641 tbsp.Molasses43
    1/2 cupIce Cream160   
    1 cupWhole Milk150   
    1/2 cupCoconut139   

    Beyond The Basics

    • 1,270 Calories per Serving in Water; 1,630 Calories When Made with Low Fat Milk.
    • 50 Grams of Protein
    • 249 Grams of Carbohydrates to Support Fueling of Intense Workouts and Aid in the Replenishment of Glycogen Stores – with No Added Sugar.
    • Creatine, L-Glutamine & Glutamine Peptides, Choline, Inositol and PABA.

    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.

    Suggested Use: For healthy adults, consume enough energy from a combination of high quality foods and supplements throughout the day as part of a balanced diet and exercise program.

    Serving scoop included. But may settle to the bottom during shipping.

    Other Ingredients

    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 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, creamer (sunflower oil, maltodextrin, modified food starch, dipotassium phosphate, tricalcium phosphate, tocopherols), lecithin, salt, sucralose, and acesulfame potassium.

    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.


    While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.


    Supplement Facts
    Serving Size: 2 Heaping Scoops (334 g)
    Servings Per Container: 8
     Amount Per Serving in water% Daily ValueAmount Per Serving in low fat milk% Daily Value
    Calories1270 1630 
    Calories from Fat70 200 
    Total Fat7 g11%*21 g32%*
    Saturated Fat4 g20%*13 g65%*
    Cholesterol95 mg32%150 mg50%
    Total Carbohydrate249 g83%*284 g95%*
    Dietary Fiber4 g16%*4 g16%*
    Sugars26 g61 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%
    Calcium600 mg60%1491 mg149%
    Iron8 mg44%8.3 mg46%
    Phosphorus650 mg65%1346 mg135%
    Iodine175 mcg117%175 mcg117%
    Magnesium170 mg43%269 mg67%
    Zinc18 mg120%20 mg133%
    Selenium70 mcg100%70 mcg100%
    Copper1.2 mg60%1.2 mg60%
    Manganese2 mg100%2 mg100%
    Chromium200 mcg167%200 mcg167%
    Molybdenum75 mcg100%75 mcg100%
    Sodium700 mg29%1060 mg44%
    Potassium1300 mg37%2430 mg69%
    Creatine Monohydrate1 g1 g
    L-Glutamine500 mg500 mg
    Glutamine Peptides500 mg500 mg
    Choline (as choline bitartrate)250 mg250 mg
    Inositol250 mg250 mg
    PABA (para-aminobenzoic acid)5 mg5 mg
    * Percent Daily Values are based on a 2,000 calorie diet. 
    † Daily Value not established.
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