PlainVitamins

Sentry Adults

by 21st Century · tablet or pill · 300 tablets

  • On the market (NIH)
  • UPC 7 40985 22702 2
  • DSLD label 326344
  • Serving 1 tablet
  • 300 servings

Sentry Adults by 21st Century lists 27 ingredients, 27 with an amount per serving of 1 tablet, such as 1,050 mcg of vitamin A, 60 mg of vitamin C, 25 mcg (1,000 IU) of vitamin D3 and 13.5 mg of vitamin E. Its current label entered the NIH Dietary Supplement Label Database on March 25, 2025.

What is in Sentry Adults?

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).

Sentry Adults: Supplement Facts rows against the market (DSLD label 326344, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Beta-Carotene, Vitamin A Acetate29% as beta-carotene1,050 mcg117%
Vitamin Cas Ascorbic Acid60 mg67%Vitamin C in Sentry Adults 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 Cholecalciferol1000 IU25 mcg (1,000 IU)125%Vitamin D in Sentry Adults against 14,175 products25 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg25 mcg

Higher than 59% of 14,175 products listing vitamin D (median 15 mcg).

Vitamin Eas DL-Alpha-Tocopheryl Acetate13.5 mg90%
Vitamin Kas Phytonadione25 mcg21%Vitamin K in Sentry Adults 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 Sentry Adults 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 Sentry Adults 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 Sentry Adults 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 Sentry Adults 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 Sentry Adults 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 Sentry Adults 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 Sentry Adults 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 Phosphate200 mg15%Calcium in Sentry Adults against 17,831 products200 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg200 mg

Higher than 64% of 17,831 products listing calcium (median 115 mg).

Ironas Ferrous Fumarate18 mg100%Iron in Sentry Adults 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 Phosphate20 mg2%Phosphorus in Sentry Adults against 3,786 products20 mg per serving; the middle half of products list 45 mg to 200 mg, the median 90 mg.DV 1,250 mgUL 4,000 mg20 mg

88% of 3,786 products listing phosphorus give more (median 90 mg).

Iodineas Potassium Iodide150 mcg100%Iodine in Sentry Adults 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 Oxide50 mg12%Magnesium in Sentry Adults against 14,003 products50 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg50 mg

59% of 14,003 products listing magnesium give more (median 86 mg).

Zincas Zinc Oxide11 mg100%Zinc in Sentry Adults against 13,186 products11 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg11 mg

47% of 13,186 products listing zinc give more (median 11 mg).

Seleniumas Sodium Selenate55 mcg100%Selenium in Sentry Adults against 7,658 products55 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg55 mcg

50% of 7,658 products listing selenium give more (median 55 mcg).

Copperas Copper Sulfate0.5 mg56%Copper in Sentry Adults against 6,468 products0.5 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg0.5 mg

68% of 6,468 products listing copper give more (median 1 mg).

Manganeseas Manganese Sulfate2.3 mg100%Manganese in Sentry Adults against 7,016 products2.3 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg2.3 mg

Higher than 62% of 7,016 products listing manganese (median 2 mg).

Chromiumas Chromium Picolinate35 mcg100%Chromium in Sentry Adults against 7,825 products35 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg35 mcg

77% of 7,825 products listing chromium give more (median 100 mcg).

Molybdenumas Sodium Molybdate45 mcg100%Molybdenum in Sentry Adults against 4,390 products45 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg45 mcg

55% of 4,390 products listing molybdenum give more (median 50 mcg).

Chlorideas Potassium Chloride72 mg3%Chloride in Sentry Adults 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 Sentry Adults 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).

Source: NIH ODS Dietary Supplement Label Database, label 326344 (entered March 25, 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).
  • 88% of the 3,786 products that print an amount of phosphorus list more than its 20 mg of phosphorus (median 90 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?

6 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. Do not exceed recommended dosage. Individual results may vary.
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.
Important Information: Extended use of high levels of Vitamin A (excluding Beta-Carotene as the source) may increase the risk to adults of developing osteoporosis. Do not use this product if using other Vitamin A supplements.
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 326344.

What else is on the label?

Other ingredients: Cellulose, Starch, Stearic Acid, Vegetable Oil, FD&C Yellow #6, Croscarmellose Sodium, Gelatin, Magnesium Silicate, Magnesium Stearate, Maltodextrin, Monoglycerides, Diglycerides, PEG/PVA Copolymer, Polyvinyl Alcohol, Silicon Dioxide, 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 Sentry Adults have?

7 labels are on file under this name since March 25, 2015: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 326344 (current) Entered March 25, 2025 · on the market · 300 tablets · UPC 7 40985 22702 2
  2. Label 258557 Entered January 22, 2022 · off the market July 18, 2023 · 300 tablets · UPC 7 40985 22702 2
  3. Label 258556 Entered January 22, 2022 · on the market · 130 tablets · UPC 7 40985 22380 2
  4. Label 207458 Entered October 23, 2019 · on the market · 200 tablets · UPC 7 40985 27318 0
  5. Label 206235 Entered August 23, 2019 · off the market August 6, 2021 · 300 tablets · UPC 7 40985 22702 2
  6. Label 205894 Entered August 23, 2019 · off the market August 6, 2021 · 130 tablets · UPC 7 40985 22380 2
  7. Label 43768 Entered March 25, 2015 · off the market March 14, 2019 · 200 tablets · UPC 7 40985 27318 0

DSLD also links this label to: Sentry (image difference, same product), Sentry (image difference, same product).

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?