Fiber-Plex

by Douglas Laboratories · capsule · 120 capsules

  • On the market (NIH)
  • UPC 7 45287 07001 7
  • DSLD label 261114
  • Serving 3 capsules
  • 40 servings

Fiber-Plex by Douglas Laboratories lists 6 ingredients; 6 sit inside a blend without their own amounts, beside 3 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on February 23, 2022.

What is in Fiber-Plex?

Each row as the label prints it, per serving of 3 capsules. 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).

Fiber-Plex: Supplement Facts rows against the market (DSLD label 261114, January 2026 release)
IngredientAmount% DVAmong products listing it
Total Carbohydratesless than 1 g
Dietary Fiber0.5 g2%Fiber in Fiber-Plex against 6,987 products0.5 g per serving; the middle half of products list 1 g to 4 g, the median 2 g.0.5 g

96% of 6,987 products listing fiber give more (median 2 g). Per day at the most servings: 1 g.

Proprietary Blend1.5 g
Glucomannanin the blend, no amount given
Carrotin the blend, no amount given
Celeryin the blend, no amount given
Citrus Pectinin the blend, no amount given
Apple Pectinin the blend, no amount given
Sodium Alginatein the blend, no amount given
Slippery Elmin the blend, no amount given

Source: NIH ODS Dietary Supplement Label Database, label 261114 (entered February 23, 2022), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient; 7 ingredients sit inside a blend, so their amounts cannot be compared.

The NIH database records 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?

The products whose ingredient lists overlap most with Fiber-Plex'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 3 capsules with at least 8 ounces of water twice daily or as directed by your health professional. The capsules may also be pulled apart, if desired, and the contents stirred into 8 ounces of water or juice.
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.
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 261114.

What else is on the label?

Other ingredients: Gelatin, Vegetable Stearate, Silica, Microcrystalline Cellulose.

How many labels does Fiber-Plex have?

4 labels are on file under this name since February 23, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 261114 (current) Entered February 23, 2022 · on the market · 120 capsules · UPC 7 45287 07001 7
  2. Label 237215 Entered October 23, 2020 · off the market September 9, 2021 · 120 capsules · UPC 7 45287 07001 7
  3. Label 10865 Entered July 25, 2012 · off the market August 14, 2020 · 120 capsules · UPC 7 45287 07001 7
  4. Label 6294 Entered February 23, 2012 · off the market January 20, 2012 · 120 capsules · UPC 7 45287 07001 7

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?