PlainVitamins

Basic Preventive 3 (Plus Iron)

by Douglas Laboratories · tablet or pill · 180 tablets

  • Off the market since February 2018 (NIH)
  • UPC 3 10539 03847 5
  • DSLD label 70603
  • Serving 6 tablets
  • 30 servings

Basic Preventive 3 (Plus Iron) by Douglas Laboratories lists 30 ingredients, 30 with an amount per serving of 6 tablets, such as 25,000 IU of vitamin A, 1,200 mg of vitamin C complex, 100 IU (2.5 mcg) of vitamin D3 and 400 IU of vitamin E. Its current label entered the NIH Dietary Supplement Label Database on February 24, 2017.

What is in Basic Preventive 3 (Plus Iron)?

Each row as the label prints it, per serving of 6 tablets. 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).

Basic Preventive 3 (Plus Iron): Supplement Facts rows against the market (DSLD label 70603, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Beta-Carotene, Vitamin A AcetateVitamin A (Form: as 40% Vitamin A Acetate, and as 60% natural Beta Carotene Note: 15,000 IU)25,000 IU500%Vitamin A in Basic Preventive 3 (Plus Iron) against 5,772 products25,000 IU per serving; the middle half of products list 2,000 IU to 5,000 IU, the median 4,000 IU.25,000 IU

Higher than 96% of 5,772 products listing vitamin A (median 4,000 IU).

Vitamin C Complexas Ascorbic Acid, Calcium Ascorbate, Magnesium AscorbateVitamin C Complex (Form: as Calcium Ascorbate, and Magnesium Aspartate-Ascorbate, Potassium Aspartate-Ascorbate) (Alt. Name: Ascorbic Acid)1,200 mg2,000%Vitamin C in Basic Preventive 3 (Plus Iron) against 18,583 products1,200 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,200 mg

Higher than 98% of 18,583 products listing vitamin C (median 100 mg).

Vitamin D3100 IU (2.5 mcg)25%Vitamin D in Basic Preventive 3 (Plus Iron) against 14,175 products2.5 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg2.5 mcg

92% of 14,175 products listing vitamin D give more (median 15 mcg).

Vitamin Eas D-Alpha-Tocopheryl SuccinateVitamin E (Form: as D-Alpha Tocopheryl Succinate)400 IU1,333%Vitamin E in Basic Preventive 3 (Plus Iron) against 6,459 products400 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.400 IU

Higher than 91% of 6,459 products listing vitamin E (median 30 IU).

Vitamin K160 mcg75%Vitamin K in Basic Preventive 3 (Plus Iron) against 4,607 products60 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg60 mcg

55% of 4,607 products listing vitamin K give more (median 80 mcg).

Thiamineas Thiamine MononitrateThiamine (Form: as Thiamine Mononitrate)100 mg6,667%Thiamin in Basic Preventive 3 (Plus Iron) against 9,830 products100 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg100 mg

Higher than 94% of 9,830 products listing thiamin (median 5 mg).

Riboflavin50 mg2,941%Riboflavin in Basic Preventive 3 (Plus Iron) against 9,824 products50 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg50 mg

Higher than 86% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Niacin, NiacinamideNiacin (Form: as Niacinamide, and Niacin)200 mg1,000%Niacin in Basic Preventive 3 (Plus Iron) against 12,413 products200 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg200 mg

Higher than 95% of 12,413 products listing niacin (median 20 mg). 5.7 times the adult UL a day.

Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine Hydrochloride)50 mg2,500%Vitamin B6 in Basic Preventive 3 (Plus Iron) against 15,277 products50 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg50 mg

Higher than 87% of 15,277 products listing vitamin B6 (median 6 mg).

Folic Acid800 mcg200%Folate in Basic Preventive 3 (Plus Iron) against 7,022 products800 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.800 mcg

Higher than 81% of 7,022 products listing folate (median 400 mcg).

Vitamin B12as CyanocobalaminVitamin B12 (Form: as Cyanocobalamin Note: on ion exchange resin)100 mcg1,667%Vitamin B12 in Basic Preventive 3 (Plus Iron) against 14,425 products100 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg100 mcg

Higher than 61% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotin300 mcg100%Biotin in Basic Preventive 3 (Plus Iron) 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 Acidas D-Calcium PantothenatePantothenic Acid (Form: as D-Calcium Pantothenate)400 mg4,000%Pantothenic Acid (Vitamin B5) in Basic Preventive 3 (Plus Iron) against 10,060 products400 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg400 mg

Higher than 98% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Calciumas Calcium Ascorbate, Calcium CitrateCalcium (Form: as Calcium Citrate, and Calcium Ascorbate)500 mg50%Calcium in Basic Preventive 3 (Plus Iron) against 17,831 products500 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg500 mg

Higher than 85% of 17,831 products listing calcium (median 115 mg).

Ironas Ferronyl Iron CarbonylIron (Form: as Ferronyl Iron Carbonyl)20 mg111%Iron in Basic Preventive 3 (Plus Iron) against 6,910 products20 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg20 mg

Higher than 85% of 6,910 products listing iron (median 5 mg).

Iodineas KelpIodine (Form: from Kelp)150 mcg100%Iodine in Basic Preventive 3 (Plus Iron) 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).

Magnesium Complexas Magnesium Amino Acid Chelate, Magnesium Aspartate-Ascorbate, Magnesium OxideMagnesium Complex (Form: as Magnesium Aspartate-Ascorbate, Magnesium Amino Acid Chelate, Magnesium Oxide)500 mg125%

The label names the compound (Magnesium Complex); its amount is likely the compound's weight, not the magnesium it holds, so it is not placed among other products.

Zincas Zinc Amino Acid ChelateZinc (Form: as Zinc Amino Acid Chelate)20 mg133%Zinc in Basic Preventive 3 (Plus Iron) against 13,186 products20 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg20 mg

Higher than 79% of 13,186 products listing zinc (median 11 mg).

Seleniumas Selenium Amino Acid ChelateSelenium (Form: as Selenium Amino Acid Chelate)200 mcg286%Selenium in Basic Preventive 3 (Plus Iron) against 7,658 products200 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg200 mcg

Higher than 82% of 7,658 products listing selenium (median 55 mcg).

Copperas Copper Amino Acid ChelateCopper (Form: as Copper Amino Acid Chelate)2 mg100%Copper in Basic Preventive 3 (Plus Iron) 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 Amino Acid ChelateManganese (Form: as Manganese Amino Acid Chelate)20 mg1,000%Manganese in Basic Preventive 3 (Plus Iron) against 7,016 products20 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg20 mg

Higher than 98% of 7,016 products listing manganese (median 2 mg). 1.8 times the adult UL a day.

Chromiumas Chromium PolynicotinateChromium (Form: as Chromium Polynicotinate)200 mcg167%Chromium in Basic Preventive 3 (Plus Iron) against 7,825 products200 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg200 mcg

Higher than 72% of 7,825 products listing chromium (median 100 mcg).

Molybdenumas Molybdenum Amino Acid ChelateMolybdenum (Form: as Molybdenum Amino Acid Chelate)150 mcg200%Molybdenum in Basic Preventive 3 (Plus Iron) against 4,390 products150 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg150 mcg

Higher than 93% of 4,390 products listing molybdenum (median 50 mcg).

Potassium Complexas Potassium Aspartate-Ascorbate, Potassium ChloridePotassium Complex (Form: as Potassium Aspartate-Ascorbate, Potassium Chloride)99 mg3%

The label names the compound (Potassium Complex); its amount is likely the compound's weight, not the potassium it holds, so it is not placed among other products.

Cholineas Choline BitartrateCholine (Form: as Choline Bitartrate)150 mg27%*Choline in Basic Preventive 3 (Plus Iron) against 4,738 products150 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg150 mg

Higher than 83% of 4,738 products listing choline (median 40 mg).

Inositol50 mgInositol in Basic Preventive 3 (Plus Iron) against 4,042 products50 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.50 mg

Higher than 55% of 4,042 products listing inositol (median 30 mg).

Vanadiumas Vanadyl SulfateVanadium (Form: as Vanadyl Sulfate)39 mcgVanadium in Basic Preventive 3 (Plus Iron) against 1,744 products39 mcg per serving; the middle half of products list 10 mcg to 100 mcg, the median 25 mcg.UL 1,800 mcg39 mcg

Higher than 57% of 1,744 products listing vanadium (median 25 mcg).

Boronas Boron Aspartate, Boron CitrateBoron (Form: as Boron Aspartate, Boron Citrate)2 mgBoron in Basic Preventive 3 (Plus Iron) against 3,339 products2 mg per serving; the middle half of products list 0.3 mg to 2 mg, the median 1 mg.UL 20 mg2 mg

Higher than 64% of 3,339 products listing boron (median 1 mg).

Para-Aminobenzoic Acid50 mgPABA in Basic Preventive 3 (Plus Iron) against 1,610 products50 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.50 mg

Higher than 62% of 1,610 products listing PABA (median 25 mg).

Citrus Bioflavonoids Complex100 mgFlavonoid in Basic Preventive 3 (Plus Iron) against 2,343 products100 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.100 mg

Higher than 62% of 2,343 products listing flavonoid (median 50 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 70603 (entered February 24, 2017), 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:

  • Its 25,000 IU of vitamin A is higher than 96% of the 5,772 vitamin A products that print an amount; 32 list more.
  • Its 1,200 mg of vitamin C is higher than 98% of the 18,583 vitamin C products that print an amount; 299 list more.
  • 92% of the 14,175 products that print an amount of vitamin D list more than its 2.5 mcg (100 IU) of vitamin D (median 15 mcg (600 IU)).
  • Its 400 IU of vitamin E is higher than 91% of the 6,459 vitamin E products that print an amount; 120 list more.
  • Its 100 mg of thiamin is higher than 94% of the 9,830 thiamin products that print an amount; 163 list more.
  • At 1 serving a day, the most its directions give, the label lists 200 mg of niacin, 5.7 times the adult Tolerable Upper Intake Level.

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?

The products whose ingredient lists overlap most with Basic Preventive 3 (Plus Iron)'s, rare ingredients counting for more.

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
Suggested Usage: As a dietary supplement, adults take 6 tablets daily with food or as directed by your healthcare professional.
Warnings
Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under the age of 6. Keep this product out of the reach of children. In case of accidental overdose, call a doctor or poison control center immediately.
This product contains Vitamin K, which intereferes with prescription blood-thinning drugs Coumadin and Warfarin.
Keep out of reach of children.
Tamper resistant package, do not use if inner seal is missing.
Do not take this product before consulting with your healthcare provider.
Allergens and what it does not contain
This product contains no yeast, gluten, soy protein, milk/dairy, corn, starch, artificial coloring, preservatives or flavoring.
Storage
For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)

Source: label statements in DSLD label 70603.

What else is on the label?

Other ingredients: Cellulose, Croscarmellose Sodium, Vegetable Stearate, Silica, Water, Titanium Dioxide, Dextrose, Magnesium Silicate, Calcium Carbonate, Glycerin, Beet.

How many labels does Basic Preventive 3 (Plus Iron) have?

2 labels are on file under this name since March 25, 2014: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 70603 (current) Entered February 24, 2017 · off the market February 26, 2018 · 180 tablets · UPC 3 10539 03847 5
  2. Label 31218 Entered March 25, 2014 · off the market December 16, 2016 · 180 tablets · UPC 3 10539 03847 5

DSLD also links this label to: Basic Preventive 3 (image difference, same product), Basic Preventive 3 (image difference, same product), Basic Preventive 3 (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 Douglas Laboratories (manufacturer), Pittsburgh, PA. All Douglas Laboratories products.

Where next?