PlainVitamins

One Daily Maximum

by 21st Century · tablet or pill · 100 tablets

  • On the market (NIH)
  • UPC 7 40985 27304 3
  • DSLD label 326338
  • Serving 1 tablet
  • 100 servings

One Daily Maximum by 21st Century lists 31 ingredients, 31 with an amount per serving of 1 tablet, such as 750 mcg of vitamin A, 60 mg of vitamin C, 10 mcg (400 IU) of vitamin D3 and 13.5 mg of vitamin E. Its current label entered the NIH Dietary Supplement Label Database on July 24, 2025.

What is in One Daily Maximum?

Each row as the label prints it, per serving of 1 tablet. 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).

One Daily Maximum: Supplement Facts rows against the market (DSLD label 326338, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Beta-Carotene, Vitamin A Acetate20% as beta-carotene750 mcg83%
Vitamin Cas Ascorbic Acid60 mg67%Vitamin C in One Daily Maximum 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 D3as Cholecalciferol400 IU10 mcg (400 IU)50%Vitamin D in One Daily Maximum against 14,175 products10 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg10 mcg

57% of 14,175 products listing vitamin D give more (median 15 mcg).

Vitamin Eas DL-Alpha-Tocopheryl Acetate13.5 mg90%
Vitamin Kas Phytonadione25 mcg21%Vitamin K in One Daily Maximum against 4,607 products25 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg25 mcg

80% of 4,607 products listing vitamin K give more (median 80 mcg).

Thiamineas Thiamine Mononitrate, Vitamin B11.5 mg125%Thiamin in One Daily Maximum against 9,830 products1.5 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg1.5 mg

66% of 9,830 products listing thiamin give more (median 5 mg).

Riboflavinas Vitamin B21.7 mg131%Riboflavin in One Daily Maximum against 9,824 products1.7 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg1.7 mg

64% of 9,824 products listing riboflavin give more (median 4 mg).

Niacinas Niacinamide20 mg125%Niacin in One Daily Maximum against 12,413 products20 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg20 mg

46% of 12,413 products listing niacin give more (median 20 mg).

Vitamin B6as Pyridoxine Hydrochloride2 mg118%Vitamin B6 in One Daily Maximum against 15,277 products2 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg2 mg

69% of 15,277 products listing vitamin B6 give more (median 6 mg).

Folate667 mcg DFE167%
Folic Acid400 mcg
Vitamin B12as Cyanocobalamin6 mcg250%Vitamin B12 in One Daily Maximum against 14,425 products6 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg6 mcg

74% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Biotin30 mcg100%Biotin in One Daily Maximum against 9,447 products30 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg30 mcg

83% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas D-Calcium Pantothenate10 mg200%Pantothenic Acid (Vitamin B5) in One Daily Maximum against 10,060 products10 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg10 mg

52% of 10,060 products listing pantothenic acid (vitamin B5) give more (median 12 mg).

Calciumas Calcium Carbonate, Dicalcium Phosphate162 mg12%Calcium in One Daily Maximum against 17,831 products162 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg162 mg

Higher than 61% of 17,831 products listing calcium (median 115 mg).

Ironas Ferrous Fumarate18 mg100%Iron in One Daily Maximum against 6,910 products18 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg18 mg

Higher than 74% of 6,910 products listing iron (median 5 mg).

Phosphorusas Dicalcium Phosphate109 mg9%Phosphorus in One Daily Maximum against 3,786 products109 mg per serving; the middle half of products list 45 mg to 200 mg, the median 90 mg.DV 1,250 mgUL 4,000 mg109 mg

Higher than 59% of 3,786 products listing phosphorus (median 90 mg).

Iodineas Potassium Iodide150 mcg100%Iodine in One Daily Maximum 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).

Magnesiumas Magnesium Oxide100 mg24%Magnesium in One Daily Maximum against 14,003 products100 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg100 mg

Higher than 51% of 14,003 products listing magnesium (median 86 mg).

Zincas Zinc Oxide15 mg136%Zinc in One Daily Maximum 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).

Seleniumas Sodium Selenate20 mcg36%Selenium in One Daily Maximum against 7,658 products20 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg20 mcg

84% of 7,658 products listing selenium give more (median 55 mcg).

Copperas Copper Sulfate2 mg222%Copper in One Daily Maximum against 6,468 products2 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg2 mg

Higher than 66% of 6,468 products listing copper (median 1 mg).

Manganeseas Manganese Sulfate3.5 mg152%Manganese in One Daily Maximum against 7,016 products3.5 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg3.5 mg

Higher than 75% of 7,016 products listing manganese (median 2 mg).

Chromiumas Chromium Chloride65 mcg186%Chromium in One Daily Maximum against 7,825 products65 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg65 mcg

60% of 7,825 products listing chromium give more (median 100 mcg).

Molybdenumas Sodium Molybdate160 mcg356%Molybdenum in One Daily Maximum against 4,390 products160 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg160 mcg

Higher than 96% of 4,390 products listing molybdenum (median 50 mcg).

Chlorideas Potassium Chloride72 mg3%Chloride in One Daily Maximum against 1,476 products72 mg per serving; the middle half of products list 60 mg to 183.5 mg, the median 75 mg.DV 2,300 mgUL 3,600 mg72 mg

51% of 1,476 products listing chloride give more (median 75 mg).

Potassiumas Potassium Chloride80 mg2%Potassium in One Daily Maximum against 11,614 products80 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg80 mg

59% of 11,614 products listing potassium give more (median 99 mg).

Boronas Sodium Borate150 mg

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

Tinas Stannous Chloride10 mcgTin in One Daily Maximum against 174 products10 mcg per serving; the middle half of products list 10 mcg to 10 mcg, the median 10 mcg.10 mcg

2% of 174 products listing tin give more (median 10 mcg).

Siliconas Silicon Dioxide2 mgSilicon in One Daily Maximum against 1,220 products2 mg per serving; the middle half of products list 2 mg to 10.5 mg, the median 4 mg.2 mg

61% of 1,220 products listing silicon give more (median 4 mg).

Vanadiumas Sodium Metavanadate10 mcgVanadium in One Daily Maximum against 1,744 products10 mcg per serving; the middle half of products list 10 mcg to 100 mcg, the median 25 mcg.UL 1,800 mcg10 mcg

60% of 1,744 products listing vanadium give more (median 25 mcg).

Source: NIH ODS Dietary Supplement Label Database, label 326338 (entered July 24, 2025), version 9.4.0. See the label on DSLD or its label image (PDF). 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:

  • 83% of the 9,447 products that print an amount of biotin list more than its 30 mcg of biotin (median 200 mcg).
  • Its 160 mcg of molybdenum is higher than 96% of the 4,390 molybdenum products that print an amount; 150 list more.
  • 2% of the 174 products that print an amount of tin list more than its 10 mcg of tin (median 10 mcg).
  • 60% of the 1,744 products that print an amount of vanadium list more than its 10 mcg of vanadium (median 25 mcg).

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?

2 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
Directions: As a dietary supplement, adults take one (1) tablet daily with any meal or as directed by your healthcare provider.
Warnings
Do not exceed recommended dosage.
Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.
Stop use and contact a physician if adverse reactions occur.
Keep out of reach of children.
Do not use if product appears to be tampered with or seal is broken.
Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose call a doctor or poison control center immediately.
Allergens and what it does not contain
gluten free
No added yeast or artificial flavors. Gluten Free.
Storage
Store at room temperature.

Source: label statements in DSLD label 326338.

What else is on the label?

Other ingredients: Cellulose, Stearic Acid, FD&C Blue #2 Carmine, FD&C Red #40, Croscarmellose Sodium, Gelatin, Magnesium Silicate, Magnesium Stearate, Polyethylene Glycol, Polyvinyl Alcohol, Starch, Titanium Dioxide.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Guaranteed Quality Laboratory Tested.

How many labels does One Daily Maximum have?

5 labels are on file under this name since July 25, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 326338 (current) Entered July 24, 2025 · on the market · 100 tablets · UPC 7 40985 27304 3
  2. Label 258544 Entered January 22, 2022 · off the market July 18, 2023 · 100 tablets · UPC 7 40985 27304 3
  3. Label 233581 Entered September 25, 2020 · off the market August 5, 2020 · 100 tablets · UPC 7 40985 27304 3
  4. Label 207425 Entered September 24, 2019 · off the market August 6, 2021 · 100 tablets · UPC 7 40985 27304 3
  5. Label 11558 Entered July 25, 2012 · on the market · 100 tablets · UPC 7 40985 22394 9

DSLD also links this label to: Psychotic Gold Gummy Candy (flavor difference).

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

Who makes it?

The label names 21st Century HealthCare, Inc. (manufacturer), Tempe, AZ. All 21st Century products.

Where next?