PlainVitamins

Mega B-50

by Vitamin World · capsule · 250 rapid release capsules

  • On the market (NIH)
  • UPC 0 74312 75923 9
  • DSLD label 1820
  • Serving 1 to 2 capsules; amounts per 1 capsule

Mega B-50 by Vitamin World lists 11 ingredients, 11 with an amount per serving of 1 capsule, such as 50 mg of thiamine, 50 mg of ribovlavin, 50 mg of niacin and 50 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on November 25, 2011.

What is in Mega B-50?

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

Mega B-50: Supplement Facts rows against the market (DSLD label 1820, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamineas Thiamine Mononitrate, Vitamin B1Thiamin (Form: as Thiamin Mononitrate) (Alt. Name: Vitamin B-1)50 mg3,333%Thiamin in Mega B-50 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).

Ribovlavin50 mg2,941%Riboflavin in Mega B-50 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 NiacinamideNiacin (Form: as Niacinamide)50 mg250%Niacin in Mega B-50 against 12,413 products50 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg50 mg

Higher than 75% of 12,413 products listing niacin (median 20 mg). 1.4 times the adult UL a day.

Vitamin B6as Pyridoxine HydrochlorideVitamin B-6 (Form: as Pyridoxine Hydrochloride)50 mg2,500%Vitamin B6 in Mega B-50 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 Acid400 mcg100%Folate in Mega B-50 against 7,022 products400 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.400 mcg

24% of 7,022 products listing folate give more (median 400 mcg).

Vitamin B12as CyanocobalaminVitamin B-12 (Form: as Cyanocobalamin)50 mcg833%Vitamin B12 in Mega B-50 against 14,425 products50 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg50 mcg

Higher than 51% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotinas D-BiotinBiotin (Form: as D-Biotin)50 mcg17%Biotin in Mega B-50 against 9,447 products50 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg50 mcg

73% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas D-Calcium PantothenatePantothenic Acid (Form: as D-Calcium Pantothenate)50 mg500%Pantothenic Acid (Vitamin B5) in Mega B-50 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).

Choline Bitartrate50 mg9%*Choline in Mega B-50 against 4,738 products50 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg50 mg

Higher than 54% of 4,738 products listing choline (median 40 mg).

Inositol50 mgInositol in Mega B-50 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).

Paba50 mgPABA in Mega B-50 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).

Proprietary Blendas Alfalfa, Parsley, Rice Bran5 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 1820 (entered November 25, 2011), 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 1 serving a day, the most its directions give, the label lists 50 mg of niacin, 1.4 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?

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: For adults, take one (1) or two (2) capsules daily, preferably with a meal.
Warnings
Keep out of reach of children.
WARNING: If you are pregnant, nursing or taking any medications, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur.
Do not use if seal under cap is broken or missing.
Allergens and what it does not contain
No Artificial Color or Flavor, No Preservatives, No Sugar, No Starch, No Milk, No Lactose, No Gluten, No Wheat, NoYeast, No Fish. Sodium Free.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 1820.

What else is on the label?

Other ingredients: Gelatin, Dicalcium Phosphate, Vegetable Magnesium Stearate, Mannitol, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): QUALITY ASSURED.

How many labels does Mega B-50 have?

3 labels are on file under this name since October 26, 2011: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 20704 Entered April 25, 2013 · off the market November 22, 2024 · 250 easy to swallow coated caplets · UPC 0 74312 70585 4
  2. Label 1820 (current) Entered November 25, 2011 · on the market · 250 rapid release capsules · UPC 0 74312 75923 9
  3. Label 1172 Entered October 26, 2011 · off the market January 1, 2012 · 250 easy to swallow coated tablets · UPC 0 74312 70585 4

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

Who makes it?

The label names Vitamin World, Inc. (manufacturer), Ronkonkoma, NY, U.S.A.. All Vitamin World products.

Where next?