PlainVitamins

Sustained Release B-100

by NOW · tablet or pill · 100 tablets

  • On the market (NIH)
  • UPC 7 33739 00439 0
  • DSLD label 70198
  • Serving 1 tablet

Sustained Release B-100 by NOW lists 12 ingredients, 12 with an amount per serving of 1 tablet, such as 100 mg of thiamine, 100 mg of riboflavin, 100 mg of niacin and 100 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on March 24, 2017.

What is in Sustained Release B-100?

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).

Sustained Release B-100: Supplement Facts rows against the market (DSLD label 70198, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamineas Thiamine Hydrochloride, Vitamin B1Thiamin (Form: from Thiamin HCl) (Alt. Name: Vitamin B-1)100 mg8,333%Thiamin in Sustained Release B-100 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).

Riboflavinas Vitamin B2100 mg7,692%Riboflavin in Sustained Release B-100 against 9,824 products100 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg100 mg

Higher than 96% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Niacinamide, Vitamin B3Niacin (Form: Vitamin B-3, as Niacinamide)100 mg625%Niacin in Sustained Release B-100 against 12,413 products100 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg100 mg

Higher than 88% of 12,413 products listing niacin (median 20 mg). 2.9 times the adult UL a day.

Vitamin B6as Pyridoxine HydrochlorideVitamin B-6 (Form: from Pyridoxine HCl)100 mg5,882%Vitamin B6 in Sustained Release B-100 against 15,277 products100 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg100 mg

Higher than 96% of 15,277 products listing vitamin B6 (median 6 mg).

Folate667 mcg DFE167%
Folic Acid400 mcg
Vitamin B12as CyanocobalaminVitamin B-12 (Form: as Cyanocobalamin)100 mcg4,167%Vitamin B12 in Sustained Release B-100 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).

Biotin100 mcg333%Biotin in Sustained Release B-100 against 9,447 products100 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg100 mcg

61% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas Calcium PantothenatePantothenic Acid (Form: from Calcium Pantothenate)100 mg2,000%Pantothenic Acid (Vitamin B5) in Sustained Release B-100 against 10,060 products100 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg100 mg

Higher than 86% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Cholineas Choline BitartrateCholine (Form: from Choline Bitartrate)35 mg6%Choline in Sustained Release B-100 against 4,738 products35 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg35 mg

51% of 4,738 products listing choline give more (median 40 mg).

Inositol100 mgInositol in Sustained Release B-100 against 4,042 products100 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.100 mg

Higher than 76% of 4,042 products listing inositol (median 30 mg).

Paba10 mgPABA in Sustained Release B-100 against 1,610 products10 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.10 mg

72% of 1,610 products listing PABA give more (median 25 mg).

Source: NIH ODS Dietary Supplement Label Database, label 70198 (entered March 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 100 mg of thiamin is higher than 94% of the 9,830 thiamin products that print an amount; 163 list more.
  • Its 100 mg of riboflavin is higher than 96% of the 9,824 riboflavin products that print an amount; 110 list more.
  • At 1 serving a day, the most its directions give, the label lists 100 mg of niacin, 2.9 times the adult Tolerable Upper Intake Level.
  • Its 100 mg of vitamin B6 is higher than 96% of the 15,277 vitamin B6 products that print an amount; 173 list more.

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
Suggested Usage: Take 1 tablet daily with a meal.
Warnings
Caution: For adults only.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
Keep out of reach of children.
Do Not Eat Freshness Packet. Keep in Bottle.
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.
Non-GMO
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 70198.

What else is on the label?

Other ingredients: Cellulose, Stearic Acid, Silica, Vegetarian Coating.

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

How many labels does Sustained Release B-100 have?

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

  1. Label 70198 (current) Entered March 24, 2017 · on the market · 100 tablets · UPC 7 33739 00439 0
  2. Label 49715 Entered August 25, 2015 · off the market November 30, 2016 · 100 tablets · UPC 7 33739 00439 0
  3. Label 35289 Entered July 25, 2014 · off the market July 31, 2015 · 100 tablets · UPC 7 33739 00439 0

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

Who makes it?

The label names NOW Foods (manufacturer), Bloomingdale, IL. All NOW products.

Where next?