PreferaOB One

by Alaven Pharmaceutical · softgel capsule · 30 softgels

  • Off the market since November 2023 (NIH)
  • DSLD label 43206
  • Serving 1 tablet

PreferaOB One by Alaven Pharmaceutical lists 14 ingredients, 13 with an amount per serving of 1 tablet, such as 25 mg of vitamin C, 400 IU (10 mcg) of vitamin D3, 10 IU of vitamin E and 17 mg of vitamin B3; 1 sits inside a blend without its own amount. Its current label entered the NIH Dietary Supplement Label Database on March 25, 2015.

What is in PreferaOB One?

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).

PreferaOB One: Supplement Facts rows against the market (DSLD label 43206, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid25 mg28%*Vitamin C in PreferaOB One against 18,583 products25 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg25 mg

88% of 18,583 products listing vitamin C give more (median 100 mg).

Vitamin D3as Cholecalciferol400 IU (10 mcg)50%*Vitamin D in PreferaOB One 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 AcetateVitamin E (Form: as DL-Alpha Tocopheryl Acetate)10 IUVitamin E in PreferaOB One against 6,459 products10 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.10 IU

85% of 6,459 products listing vitamin E give more (median 30 IU).

Vitamin B3as Niacin, NiacinamideVitamin B3 (Form: Niacin, as Niacinamide)17 mg106%*Niacin in PreferaOB One against 12,413 products17 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg17 mg

68% of 12,413 products listing niacin give more (median 20 mg).

Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine HCl)50 mg2,941%*Vitamin B6 in PreferaOB One 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 Acid1 mgFolate in PreferaOB One against 7,022 products1,000 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.1,000 mcg

Higher than 93% of 7,022 products listing folate (median 400 mcg).

Vitamin B12as CyanocobalaminVitamin B12 (Form: as Cyanocobalamin)12 mcg500%*Vitamin B12 in PreferaOB One against 14,425 products12 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg12 mcg

63% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Biotin30 mcg100%*Biotin in PreferaOB One 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).

Vitamin B5as D-Calcium PantothenateVitamin B5 (Form: as D-Calcium Pantothenate)10 mg200%*Pantothenic Acid (Vitamin B5) in PreferaOB One 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).

Ironno amount given
Pic22 mg
Hipas ProferrinHIP (Form: as Proferrin Note: bovine source, USDA certified) (Alt. Name: Heme Iron Polypeptide)6 mg
Iodineas Potassium IodideIodine (Form: as Potassium Iodide)175 mcg117%*Iodine in PreferaOB One against 6,382 products175 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg175 mcg

Higher than 86% of 6,382 products listing iodine (median 150 mcg).

Zincas Zinc OxideZinc (Form: as Zinc Oxide)15 mg136%*Zinc in PreferaOB One 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).

Docosahexaenoic Acid200 mgDHA in PreferaOB One against 3,627 products200 mg per serving; the middle half of products list 104 mg to 400 mg, the median 232 mg.200 mg

54% of 3,627 products listing DHA give more (median 232 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 43206 (entered March 25, 2015), 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 1,000 mcg of folic acid (filed by NIH under folate) is higher than 93% of the 7,022 folate products that print an amount; 183 list more.
  • 83% of the 9,447 products that print an amount of biotin list more than its 30 mcg of biotin (median 200 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?

The products whose ingredient lists overlap most with PreferaOB One'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
DOSAGE AND ADMINISTRATION One softgel daily with or without food, or as prescribed by a licensed health care provider with prescribing authority.
Warnings
CONTRAINDICATIONS This product is contraindicated in patients with a known hypersensitivity to any of the ingredients.
WARNING Ingestion of more than 3 grams of Omega-3 fatty acids per day has been shown to have potential antithrombotic effects, including an increased bleeding time and International Normalized Ratio (INR).
Administration of Omega-3 fatty acids should be avoided in patients taking anticoagulants and in those known to have an inherited or acquired predisposition to bleeding diathesis.
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.
PRECAUTIONS Folic acid when administered as a single agent in doses above 0.1 mg daily may obscure pernicious anemia in that hematological remission can occur while neurological manifestations remain progressive.
Pregnant women and nursing mothers should avoid supplemental doses of vitamin E higher than RDA amounts. While prescribing this nutritional supplement for pregnant women, nursing mothers, or for women prior to conception, their medical condition and other drugs, herbs, and/or supplements consumption should be considered.
ADVERSE REACTIONS Allergic sensitization has been reported following both oral and parenteral administration of folic acid.
KEEP OUT OF REACH OF CHILDREN.
Storage
STORAGE Store at controlled room temperature 20(0)-25(0)C (68(0)-77(0)F). Excursions permitted to 15(0)-30(0)C (59(0)-86(0)F). [See current USP] To protect from light, dispense in carton provided. Once open, blisters should be stored in carton.

Source: label statements in DSLD label 43206.

What else is on the label?

Other ingredients: Gelatin, Soybean Oil, yellow Beeswax, Lecithin.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): life'sDHA(TM) HEALTHY BRAIN, EYES, HEART.

How many labels does PreferaOB One have?

One label is on file, entered on March 25, 2015.

  1. Label 43206 (current) Entered March 25, 2015 · off the market November 8, 2023 · 30 softgels

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

Who makes it?

The label names Alaven(R) Pharmaceutical LLC (distributor), Marietta, GA. All Alaven Pharmaceutical products.

Where next?