PlainVitamins

Ultra Preventive

by Douglas Laboratories · tablet or pill · 240 tablets

  • On the market (NIH)
  • UPC 3 10539 97864 1
  • DSLD label 245403
  • Serving 4 tablets
  • 30 servings

Ultra Preventive by Douglas Laboratories lists 59 ingredients, 45 with an amount per serving of 4 tablets, such as 2,250 mcg of vitamin A, 350 mg of vitamin C, 12.5 mcg (500 IU) of vitamin D3 and 25 mcg (1,000 IU) of vitamin D3; 14 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on July 27, 2021.

What is in Ultra Preventive?

Each row as the label prints it, per serving of 4 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).

Ultra Preventive: Supplement Facts rows against the market (DSLD label 245403, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Beta-Carotene, Vitamin A Palmitate2,250 mcg250%
Vitamin Cas Ascorbic Acid350 mg389%Vitamin C in Ultra Preventive against 18,583 products350 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg350 mg

Higher than 79% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 700 mg.

Vitamin D3as CholecalciferolVitamin D3 (Alt. Name: Cholecalciferol) Note: 500 IU12.5 mcg (500 IU)63%Vitamin D in Ultra Preventive against 14,175 products37.5 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg37.5 mcg

Higher than 79% of 14,175 products listing vitamin D (median 15 mcg). Per day at the most servings: 75 mcg.

Vitamin D3as CholecalciferolVitamin D3 (Alt. Name: Cholecalciferol) Note: 1,000 IU25 mcg (1,000 IU)125%
Vitamin Eas D-Alpha-Tocopheryl Succinate, Mixed TocopherolsVitamin E (Form: as natural D-Alpha Tocopheryl Succinate, plus mixed Tocopherols)67 mg447%
Thiamineas Thiamine HydrochlorideThiamine (Form: as Thiamine HCl)50 mg4,167%Thiamin in Ultra Preventive against 9,830 products50 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg50 mg

Higher than 82% of 9,830 products listing thiamin (median 5 mg). Per day at the most servings: 100 mg.

Riboflavinas Riboflavin, Riboflavin 5-PhosphateRiboflavin (Form: as Riboflavin, Riboflavin-5-Phosphate)25 mg1,923%Riboflavin in Ultra Preventive against 9,824 products25 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg25 mg

Higher than 75% of 9,824 products listing riboflavin (median 4 mg). Per day at the most servings: 50 mg.

Niacin/Niacinamide95 mg594%Niacin in Ultra Preventive against 12,413 products95 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg95 mg

Higher than 88% of 12,413 products listing niacin (median 20 mg). Per day at the most servings: 190 mg. 5.4 times the adult UL a day.

Vitamin B6as Pyridoxal 5-Phosphate, Pyridoxine Hydrochloride50 mg2,941%Vitamin B6 in Ultra Preventive 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). Per day at the most servings: 100 mg.

Folateas L-5-MTHFFolate (Form: as L-5-MTHF (Alt. Name: Metafolin))667 mcg DFE167%
L-5-Mthf400 mcg
Vitamin B12as Adenosylcobalamin, Hydroxycobalamin, Methylcobalamin250 mcg10,417%Vitamin B12 in Ultra Preventive against 14,425 products250 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg250 mcg

Higher than 77% of 14,425 products listing vitamin B12 (median 36 mcg). Per day at the most servings: 500 mcg.

Biotin150 mcg500%Biotin in Ultra Preventive against 9,447 products150 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg150 mcg

51% of 9,447 products listing biotin give more (median 200 mcg). Per day at the most servings: 300 mcg.

Pantothenic Acidas D-Calcium PantothenatePantothenic Acid (Form: as D-Calcium Panthothenate)50 mg1,000%Pantothenic Acid (Vitamin B5) in Ultra Preventive against 10,060 products50 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg50 mg

Higher than 72% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg). Per day at the most servings: 100 mg.

Cholineas Choline BitartrateCholine (Form: from Choline Bitartrate)137.5 mg25%Choline in Ultra Preventive against 4,738 products137.5 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg137.5 mg

Higher than 82% of 4,738 products listing choline (median 40 mg). Per day at the most servings: 275 mg.

Calciumas Calcium Chelate, Calcium Citrate, Calcium MalateCalcium Complex (Form: as Calcium Citrate, Calcium Malate, Calcium Chelate)105 mg8%Calcium in Ultra Preventive against 17,831 products105 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg105 mg

52% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 210 mg.

Iodineas KelpIodine (Form: from Kelp)100 mcg67%Iodine in Ultra Preventive against 6,382 products100 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg100 mcg

59% of 6,382 products listing iodine give more (median 150 mcg). Per day at the most servings: 200 mcg.

Magnesium Complexas Magnesium Chelate, Magnesium CitrateMagnesium Complex (Form: as Magnesium Citrate, Magnesium Chelate)105 mg25%

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 MonomethionineZinc (Form: as Zinc Monomethionine (Alt. Name: OptiZinc))12.5 mg114%Zinc in Ultra Preventive against 13,186 products12.5 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg12.5 mg

Higher than 54% of 13,186 products listing zinc (median 11 mg). Per day at the most servings: 25 mg.

Seleniumas SelenomethionineSelenium (Form: as Selenomethionine)100 mcg182%Selenium in Ultra Preventive against 7,658 products100 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg100 mcg

Higher than 65% of 7,658 products listing selenium (median 55 mcg). Per day at the most servings: 200 mcg.

Copperas Copper Amino Acid ChelateCopper (Form: as Copper Amino Acid Chelate)1 mg111%Copper in Ultra Preventive against 6,468 products1 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 mg

40% of 6,468 products listing copper give more (median 1 mg). Per day at the most servings: 2 mg.

Manganeseas Manganese SulfateManganese (Form: as Manganese Sulfate)4.5 mg196%Manganese in Ultra Preventive against 7,016 products4.5 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg4.5 mg

Higher than 80% of 7,016 products listing manganese (median 2 mg). Per day at the most servings: 9 mg.

Chromiumas Chromium PolynicotinateChromium (Form: as Chromium Polynicotinate)100 mcg286%Chromium in Ultra Preventive against 7,825 products100 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg100 mcg

47% of 7,825 products listing chromium give more (median 100 mcg). Per day at the most servings: 200 mcg.

Molybdenumas Molybdenum Krebs ComplexMolybdenum (Form: as Molybdenum Krebs Complex (Form: Molybdenum Citrate, Molybdenum Fumarate, Molybdenum Malate, Molybdenum Glutarate, and Molybdenum Succinate))50 mcg111%Molybdenum in Ultra Preventive against 4,390 products50 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg50 mcg

41% of 4,390 products listing molybdenum give more (median 50 mcg). Per day at the most servings: 100 mcg.

Potassiumas Potassium ChloridePotassium (Form: as Potassium Chloride)50 mg1%Potassium in Ultra Preventive against 11,614 products50 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg50 mg

72% of 11,614 products listing potassium give more (median 99 mg). Per day at the most servings: 100 mg.

N-Acetyl-L-Cysteine75 mgN-Acetyl Cysteine in Ultra Preventive against 1,259 products75 mg per serving; the middle half of products list 55 mg to 500 mg, the median 150 mg.75 mg

72% of 1,259 products listing N-acetyl cysteine give more (median 150 mg). Per day at the most servings: 150 mg.

Betaine HCl75 mgBetaine Hydrochloride in Ultra Preventive against 914 products75 mg per serving; the middle half of products list 25 mg to 178 mg, the median 50 mg.75 mg

Higher than 56% of 914 products listing betaine hydrochloride (median 50 mg). Per day at the most servings: 150 mg.

Inositol50 mgInositol in Ultra Preventive 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). Per day at the most servings: 100 mg.

Quercetinas Quercetin DihydrateQuercetin (Form: as Quercetin Dihydrate)50 mgQuercetin in Ultra Preventive against 1,548 products50 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.50 mg

56% of 1,548 products listing quercetin give more (median 100 mg). Per day at the most servings: 100 mg.

Citrus Bioflavonoidsas Lemon50 mgFlavonoid in Ultra Preventive against 2,343 products50 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.50 mg

46% of 2,343 products listing flavonoid give more (median 50 mg). Per day at the most servings: 100 mg.

Papainas Papaya50 mgPapain in Ultra Preventive against 607 products50 mg per serving; the middle half of products list 20 mg to 75 mg, the median 40 mg.50 mg

Higher than 55% of 607 products listing papain (median 40 mg). Per day at the most servings: 100 mg.

Bromelainas Pineapple50 mgBromelain in Ultra Preventive against 1,337 products75 mg per serving; the middle half of products list 25 mg to 200 mg, the median 50 mg.75 mg

Higher than 53% of 1,337 products listing bromelain (median 50 mg). Per day at the most servings: 150 mg.

Bromelainas Pineapple25 mg
Grape seed extractas PolyphenolsGrape seed extract (Form: standardized to 92% Polyphenols) PlantPart: seed25 mgGrape in Ultra Preventive against 1,900 products25 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.25 mg

69% of 1,900 products listing grape give more (median 50 mg). Per day at the most servings: 50 mg.

Alpha Lipoic Acid25 mgAlpha Lipoic Acid in Ultra Preventive against 2,407 products25 mg per serving; the middle half of products list 25 mg to 150 mg, the median 50 mg.25 mg

68% of 2,407 products listing alpha lipoic acid give more (median 50 mg). Per day at the most servings: 50 mg.

Rutinas Sophora japonica12.5 mgRutin in Ultra Preventive against 1,232 products12.5 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.12.5 mg

70% of 1,232 products listing rutin give more (median 25 mg). Per day at the most servings: 25 mg.

Boronas Boron Amino Acid ChelateBoron (Form: as Boron Amino Acid Chelate)1.5 mgBoron in Ultra Preventive against 3,339 products1.5 mg per serving; the middle half of products list 0.3 mg to 2 mg, the median 1 mg.UL 20 mg1.5 mg

Higher than 58% of 3,339 products listing boron (median 1 mg). Per day at the most servings: 3 mg.

Vanadiumas Vanadium Krebs Cycle ChelatesVanadium (Form: as Vanadium Krebs Complex (Form: Vanadium Citrate, Vanadium Fumarate, Vanadium Malate, Vanadium Glutarate, and Vanadium Succinate))25 mcgVanadium in Ultra Preventive against 1,744 products25 mcg per serving; the middle half of products list 10 mcg to 100 mcg, the median 25 mcg.UL 1,800 mcg25 mcg

44% of 1,744 products listing vanadium give more (median 25 mcg). Per day at the most servings: 50 mcg.

Vitamin K2as Menaquinone-7Vitamin K2 (Form: as Menaquinone-7)22.5 mcg19%*Vitamin K in Ultra Preventive against 4,607 products22.5 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg22.5 mcg

87% of 4,607 products listing vitamin K give more (median 80 mcg). Per day at the most servings: 45 mcg.

Proprietary Organic Fruit and Vegetable Blend350 mg
Show the other 22 rows of the label
Ultra Preventive: rows 41 to 62
IngredientAmount% DVAmong products listing it
organic Beet powderin the blend, no amount given
organic Carrot powderin the blend, no amount given
organic Black Currant powderin the blend, no amount given
organic Blueberry powderin the blend, no amount given
organic Broccoli powderin the blend, no amount given
organic Concord Grape powderin the blend, no amount given
organic Collard Greens powderin the blend, no amount given
organic Pomegranate powderin the blend, no amount given
organic Green Cabbage powderin the blend, no amount given
organic Cranberry powderin the blend, no amount given
organic Kale powderin the blend, no amount given
organic Parsley powderin the blend, no amount given
organic Raspberry powderin the blend, no amount given
organic Spinach powderin the blend, no amount given
Organic Phytonutrient Blendno amount given
organic Spirulina50 mgBlue-Green Algae in Ultra Preventive against 709 products50 mg per serving; the middle half of products list 100 mg to 1,000 mg, the median 500 mg.50 mg

79% of 709 products listing blue-green algae give more (median 500 mg). Per day at the most servings: 100 mg.

organic Chlorella50 mgChlorella in Ultra Preventive against 526 products50 mg per serving; the middle half of products list 92.5 mg to 1,000 mg, the median 300 mg.50 mg

77% of 526 products listing chlorella give more (median 300 mg). Per day at the most servings: 100 mg.

organic Green Tea leaf extractas EGCG, Polyphenols25 mgGreen Tea in Ultra Preventive against 2,595 products25 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.25 mg

86% of 2,595 products listing green tea give more (median 100 mg). Per day at the most servings: 50 mg.

Carotenoidsno amount given
Luteinas Marigold flower (Tagetes erecta) extract5 mgLutein in Ultra Preventive against 2,493 products5 mg per serving; the middle half of products list 0.5 mg to 10 mg, the median 3 mg.5 mg

Higher than 58% of 2,493 products listing lutein (median 3 mg). Per day at the most servings: 10 mg.

Lycopeneas TomatoesLycopene (Form: from Tomatoes)3 mgLycopene in Ultra Preventive against 1,691 products3 mg per serving; the middle half of products list 0.5 mg to 5 mg, the median 1.2 mg.3 mg

Higher than 64% of 1,691 products listing lycopene (median 1.2 mg). Per day at the most servings: 6 mg.

Zeaxanthin Isomersas Marigold flower (Tagetes erecta) extractZeaxanthin Isomers (Form: from Marigold (Tagetes erecta) flower extract PlantPart: flower Genus: Tagetes Species: erecta)1 mgZeaxanthin in Ultra Preventive against 1,215 products1 mg per serving; the middle half of products list 0.4 mg to 2 mg, the median 1 mg.1 mg

42% of 1,215 products listing zeaxanthin give more (median 1 mg). Per day at the most servings: 2 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 245403 (entered July 27, 2021), 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 2 servings a day, the most its directions give, the label lists 190 mg of niacin, 5.4 times the adult Tolerable Upper Intake Level.
  • 86% of the 2,595 products that print an amount of green tea list more than its 25 mg of organic green tea leaf extract (filed by NIH under green tea) (median 100 mg).

The NIH database records 1 to 2 servings 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?

1 product lists 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
Suggested Usage: As a dietary supplement, adults take 4-8 tablets daily or as directed by your health professional. This product is best taken with meals.
Warnings
Warning: Not to be taken by pregnant or lactating women. If you have any health condition or are taking any medication, consult your health professional before use.
Discontinue immediately if a burning sensation occurs. Not recommended for people with ulcers. Consult a health professional prior to use if you are taking blood thinners. Not to be taken if you have hyperkalemia or abnormal kidney function, or take ACE inhibitors or potassium sparing diuretics.
Not to be taken if you have hyperkalemia or abnormal kidney function, or take ACE inhibitors or potassium sparing diuretics.
Keep out of the reach of children.
Use only if safety seal is intact.
Allergens and what it does not contain
Gluten-free, Non-GMO
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 245403.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Coating, Hydroxypropyl Cellulose, Croscarmellose Sodium, Silica, Ascorbyl Palmitate.

How many labels does Ultra Preventive have?

4 labels are on file under this name since May 24, 2018: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 245403 (current) Entered July 27, 2021 · on the market · 240 tablets · UPC 3 10539 97864 1
  2. Label 245465 Entered March 25, 2021 · on the market · 120 tablets · UPC 3 10539 97863 4
  3. Label 232244 Entered August 23, 2020 · off the market January 31, 2024 · 240 tablets · UPC 3 10539 97864 1
  4. Label 176643 Entered May 24, 2018 · on the market · 240 tablets · UPC 3 10539 03678 5

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?