PlainVitamins

Serious Mass Chocolate

by ON Optimum Nutrition · powder · 6 lb

  • Off the market since December 2022 (NIH)
  • UPC 7 48927 02883 6
  • DSLD label 166479
  • Serving 167 to 334 heaping scoops (334 g); amounts per 334 heaping scoops
  • 8 servings

Serious Mass Chocolate by ON Optimum Nutrition lists 30 ingredients, 30 with an amount per serving of 334 heaping scoops, such as 5,000 IU of vitamin A, 60 mg of vitamin C, 200 IU (5 mcg) of vitamin D and 30 IU of vitamin E, beside 8 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on October 23, 2019.

What is in Serious Mass Chocolate?

Each row as the label prints it, per serving of 334 heaping scoops. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Serious Mass Chocolate: Supplement Facts rows against the market (DSLD label 166479, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories1,250 Calories
Calories from Fat40 Calories
Total Fat4.5 g7%Fat (unspecified) in Serious Mass Chocolate against 11,965 products4.5 g per serving; the middle half of products list 1 g to 2.5 g, the median 1.5 g.4.5 g

Higher than 87% of 11,965 products listing fat (unspecified) (median 1.5 g).

Saturated Fat1.5 g8%Saturated fat in Serious Mass Chocolate against 5,234 products1.5 g per serving; the middle half of products list 0.5 g to 1.5 g, the median 1 g.1.5 g

Higher than 66% of 5,234 products listing saturated fat (median 1 g).

Cholesterol80 mg27%Cholesterol in Serious Mass Chocolate against 5,275 products80 mg per serving; the middle half of products list 5 mg to 45 mg, the median 15 mg.80 mg

Higher than 92% of 5,275 products listing cholesterol (median 15 mg).

Total Carbohydrates252 g84%

This amount is far outside what other labels list for carbohydrate, or disagrees with the label's own %DV: possibly a unit or transcription slip in the database. Check the label image on DSLD.

Dietary Fiber4 g16%Fiber in Serious Mass Chocolate against 6,987 products4 g per serving; the middle half of products list 1 g to 4 g, the median 2 g.4 g

Higher than 74% of 6,987 products listing fiber (median 2 g).

Sugar20 gSugar in Serious Mass Chocolate against 11,807 products20 g per serving; the middle half of products list 1 g to 4 g, the median 2 g.20 g

Higher than 97% of 11,807 products listing sugar (median 2 g).

Protein50 g100%Protein in Serious Mass Chocolate against 8,985 products50 g per serving; the middle half of products list 2 g to 24 g, the median 16 g.50 g

Higher than 96% of 8,985 products listing protein (median 16 g).

Vitamin A5,000 IU100%Vitamin A in Serious Mass Chocolate against 5,772 products5,000 IU per serving; the middle half of products list 2,000 IU to 5,000 IU, the median 4,000 IU.5,000 IU

Higher than 55% of 5,772 products listing vitamin A (median 4,000 IU).

Vitamin C60 mg100%Vitamin C in Serious Mass Chocolate against 18,583 products60 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg60 mg

65% of 18,583 products listing vitamin C give more (median 100 mg).

Vitamin D200 IU (5 mcg)50%Vitamin D in Serious Mass Chocolate against 14,175 products5 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg5 mcg

83% of 14,175 products listing vitamin D give more (median 15 mcg).

Vitamin E30 IU100%Vitamin E in Serious Mass Chocolate against 6,459 products30 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.30 IU

44% of 6,459 products listing vitamin E give more (median 30 IU).

Thiamine4.8 mg320%Thiamin in Serious Mass Chocolate against 9,830 products4.8 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg4.8 mg

50% of 9,830 products listing thiamin give more (median 5 mg).

Riboflavin4 mg235%Riboflavin in Serious Mass Chocolate against 9,824 products4 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg4 mg

49% of 9,824 products listing riboflavin give more (median 4 mg).

Niacin50 mg250%Niacin in Serious Mass Chocolate against 12,413 products50 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg50 mg

Higher than 75% of 12,413 products listing niacin (median 20 mg). 1.4 times the adult UL a day.

Vitamin B65 mg250%Vitamin B6 in Serious Mass Chocolate against 15,277 products5 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg5 mg

51% of 15,277 products listing vitamin B6 give more (median 6 mg).

Folic Acid400 mcg100%Folate in Serious Mass Chocolate against 7,022 products400 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.400 mcg

24% of 7,022 products listing folate give more (median 400 mcg).

Vitamin B1210 mcg167%Vitamin B12 in Serious Mass Chocolate against 14,425 products10 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg10 mcg

67% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Biotin300 mcg100%Biotin in Serious Mass Chocolate against 9,447 products300 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg300 mcg

Higher than 53% of 9,447 products listing biotin (median 200 mcg).

Pantothenic Acid25 mg250%Pantothenic Acid (Vitamin B5) in Serious Mass Chocolate against 10,060 products25 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg25 mg

Higher than 61% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Calcium590 mg59%Calcium in Serious Mass Chocolate against 17,831 products590 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg590 mg

Higher than 91% of 17,831 products listing calcium (median 115 mg).

Iron8 mg44%Iron in Serious Mass Chocolate against 6,910 products8 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg8 mg

Higher than 60% of 6,910 products listing iron (median 5 mg).

Phosphorus430 mg43%Phosphorus in Serious Mass Chocolate against 3,786 products430 mg per serving; the middle half of products list 45 mg to 200 mg, the median 90 mg.DV 1,250 mgUL 4,000 mg430 mg

Higher than 93% of 3,786 products listing phosphorus (median 90 mg).

Iodine150 mcg100%Iodine in Serious Mass Chocolate against 6,382 products150 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg150 mcg

15% of 6,382 products listing iodine give more (median 150 mcg).

Magnesium140 mg35%Magnesium in Serious Mass Chocolate against 14,003 products140 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg140 mg

Higher than 69% of 14,003 products listing magnesium (median 86 mg).

Zinc15 mg100%Zinc in Serious Mass Chocolate against 13,186 products15 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg15 mg

Higher than 56% of 13,186 products listing zinc (median 11 mg).

Selenium70 mcg100%Selenium in Serious Mass Chocolate against 7,658 products70 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg70 mcg

Higher than 52% of 7,658 products listing selenium (median 55 mcg).

Copper1.6 mg80%Copper in Serious Mass Chocolate against 6,468 products1.6 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg1.6 mg

Higher than 65% of 6,468 products listing copper (median 1 mg).

Manganese2 mg100%Manganese in Serious Mass Chocolate against 7,016 products2 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg2 mg

38% of 7,016 products listing manganese give more (median 2 mg).

Chromium120 mcg100%Chromium in Serious Mass Chocolate against 7,825 products120 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg120 mcg

Higher than 54% of 7,825 products listing chromium (median 100 mcg).

Molybdenum75 mcg100%Molybdenum in Serious Mass Chocolate against 4,390 products75 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg75 mcg

Higher than 62% of 4,390 products listing molybdenum (median 50 mcg).

Sodium410 mg17%Sodium in Serious Mass Chocolate against 14,514 products410 mg per serving; the middle half of products list 15 mg to 142 mg, the median 55 mg.410 mg

Higher than 96% of 14,514 products listing sodium (median 55 mg).

Potassium1,560 mg45%Potassium in Serious Mass Chocolate against 11,614 products1,560 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg1,560 mg

Higher than over 99% of 11,614 products listing potassium (median 99 mg).

Creatine Monohydrate1 gCreatine in Serious Mass Chocolate against 1,768 products1 g per serving; the middle half of products list 1.11 g to 5 g, the median 2.5 g.1 g

75% of 1,768 products listing creatine give more (median 2.5 g).

L-Glutamine500 mgGlutamine in Serious Mass Chocolate against 1,850 products1 g per serving; the middle half of products list 0.356 g to 3 g, the median 1 g.1 g

48% of 1,850 products listing glutamine give more (median 1 g).

Glutamine Peptides500 mg
Cholineas Choline BitartrateCholine (Form: as Choline Bitartrate)250 mg45%*Choline in Serious Mass Chocolate against 4,738 products250 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg250 mg

Higher than 89% of 4,738 products listing choline (median 40 mg).

Inositol250 mgInositol in Serious Mass Chocolate against 4,042 products250 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.250 mg

Higher than 90% of 4,042 products listing inositol (median 30 mg).

Paba5 mgPABA in Serious Mass Chocolate against 1,610 products5 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.5 mg

85% of 1,610 products listing PABA give more (median 25 mg).

* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.

Source: NIH ODS Dietary Supplement Label Database, label 166479 (entered October 23, 2019), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • At 1 serving a day, the most its directions give, the label lists 50 mg of niacin, 1.4 times the adult Tolerable Upper Intake Level.
  • Its 590 mg of calcium is higher than 91% of the 17,831 calcium products that print an amount; 1,690 list more.
  • Its 430 mg of phosphorus is higher than 93% of the 3,786 phosphorus products that print an amount; 262 list more.
  • Its 1,560 mg of potassium is higher than over 99% of the 11,614 potassium products that print an amount; 60 list more.
  • Its 250 mg of inositol is higher than 90% of the 4,042 inositol products that print an amount; 322 list more.
  • 85% of the 1,610 products that print an amount of PABA list more than its 5 mg of paba (filed by NIH under PABA) (median 25 mg).

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

5 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Supercharge your Serious Mass by adding one or more of these foods to your shake. Servings size Calories 1/2 cup Granola 250 1/4 cup Chocolate Chips 198 2 tbsp. Peanut Butter 190 1 oz. Almonds 167 1 oz. Peanuts 164 1/2 cup Ice Cream 160 1 cup Whole Milk 150 1/2 cup Coconut 139 1 tbsp. Flaxseed Oil 115 1/2 cup Oat Bran 108 1 small Banana 105 1 tbsp. Honey 64 1 tbsp. Molasses 43
Directions: 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 recovery 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
Allergen information: Contains milk, egg, wheat (gluatmine peptides) and soy (lecithin) ingredients.
Warning: Not for use by those with pre-existing medical conditions or taking any medications, those under the age of 18 or women that are pregnant or nursing.
Allergens and what it does not contain
252 Grams of Carbohydrates to Support Fueling of Intense Workouts and Aid in the Replenishment of Glycogen Stores - with No Added Sugar.

Source: label statements in DSLD label 166479.

What else is on the label?

Other ingredients: Maltodextrin, Protein Blend, Cocoa, Natural and Artificial flavors, Vitamin and Mineral Blend, Acesulfame Potassium, Lecithin, Medium Chain Triglycerides.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Manufactured in the USA in our NSF GMP registered facility. Listed with: NSF certified (contents or GMP) (a seal is the label's claim; the certifier's own list confirms it).

How many labels does Serious Mass Chocolate have?

One label is on file, entered on October 23, 2019.

  1. Label 166479 (current) Entered October 23, 2019 · off the market December 13, 2022 · 6 lb · UPC 7 48927 02883 6

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Optimum Nutrition, Inc. (manufacturer), Aurora, IL. All ON Optimum Nutrition products.

Where next?