fiber
Fiber supplements
Half of the 6,987 fiber supplements in the NIH label database that print an amount list 2 g or less per serving; the middle half list 1 g to 4 g (DSLD version 9.4.0, January 2026). The 506 products whose only supplement ingredient is fiber list a median of 2 g.
- Products listing it
- 8,7186,987 print an amount; 74 list it inside a blend without an amount
- Median per serving
- 2 gmiddle half 1 g to 4 g
How much fiber do supplements contain?
The median product lists 2 g per serving. One in ten lists 1 g or less, one in ten 6 g or more. The amount printed most often is 1 g (2,773 products).
Products by amount of fiber per serving
6,987 products, log scale; extreme 0.2% at each end left out of the drawing.
Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).
Which products list the most fiber?
On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).
- QCarbo32 Grape FlavorHerbal Clean16 g
- Lean Meal Grass-Fed Whey Protein VanillaAdaptogen Research16 g
- Lean Meal Grass-Fed Whey Protein ChocolateAdaptogen Research16 g
- QCarbo32 Tropical FlavorHerbal Clean16 g
- Complete Whole Food Health Optimizer Natural FlavorSequel Vega15 g
- Complete Whole Food Health Optimizer Berry FlavorSequel Vega15 g
- Complete Whole Food Health Optimizer Vanilla Chai FlavorSequel Vega15 g
- Liquid Fiber Sugar Free OrangeNature's Way15 g
Have the amounts changed over the years?
Products whose current label entered DSLD in 2011 list a median of 2 g; those entered in 2025, 1.2 g.
| Year | Products | Median per serving |
|---|---|---|
| 2011 | 130 | 2 g |
| 2012 | 313 | 2 g |
| 2013 | 489 | 2 g |
| 2014 | 496 | 2.5 g |
| 2015 | 476 | 2 g |
| 2016 | 367 | 2 g |
| 2017 | 413 | 1 g |
| 2018 | 396 | 2 g |
| 2019 | 363 | 2 g |
| 2020 | 677 | 2 g |
| 2021 | 535 | 2 g |
| 2022 | 505 | 2 g |
| 2023 | 591 | 1.5 g |
| 2024 | 672 | 1.9 g |
| 2025 | 564 | 1.2 g |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing fiber by DSLD product type
Brands listing it most: Nature's Plus (123), Nature's Way (116), Garden of Life (76), XYMOGEN (76), Natural Factors (74), NOW (67), Metagenics (64), Enzymatic Therapy (61), Source Naturals (60), Amazing Grass (57).
Every product listing fiber
8,718 products, A to Z by name (page 91 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Minerals PlusGreen Pastureno amount
- Mini-Tabs No IronNature's Plus Source of Life · off the market1 g
- Mini-Tabs No IronNaturesPlus Source of Life1 g
- Mintense Caffeine & Electrolyte ChewsCaffeine Bulletno amount
- Miracle FiberThe Vitamin Shoppe5 g
- Miracle RedsMacroLife Naturals1 g
- Miracle Whey Protein Powder BananaDr. Mercola8 g
- Miracle Whey Protein Powder BlueberryDr. Mercola Premium Supplements9 g
- Miracle Whey Protein Powder ChocolateDr. Mercola · off the market8 g
- Miracle Whey Protein Powder MapleDr. Mercola Premium Supplements6 g
- Miracle Whey Protein Powder OriginalDr. Mercola · off the marketno amount
- Miracle Whey Protein Powder Peanut ButterDr. Mercola Premium Supplements8 g
- Miracle Whey Protein Powder StrawberryDr. Mercola Premium Supplements · off the market8 g
- Miracle Whey Protein Powder StrawberryDr. Mercola · off the market8 g
- Miracle Whey Protein Powder VanillaDr. Mercola Premium Supplements · off the market9 g
- Miracle Whey Protein Powder VanillaDr. Mercola · off the market8 g
- MiraFiber GummiesBayer8 g
- MiraFIBER Orange PowderBayer2 g
- MiraFIBER Sugar Free Orange PowderBayer2 g
- Mitocore LemonOrtho Molecular Products1 g
- Mitocore StrawberryOrtho Molecular Products1 g
- Mitomix Ketogenic BlendDr. Mercola · off the market1 g
- MochaTonix Cappuccino FlavorMarket Americano amount
- MochaTonix Chocolate Mocha FlavorMarket America1 g
- MochaTonix Vanilla FlavorMarket Americano amount
- Modified Citrus PectinDouglas Laboratories5 g
- Modified Citrus PectinNOW3 g
- Modified Citrus PectinNutriCology1.8 g
- Modified Citrus PectinAllergy Research Group3.75 g
- Modified Citrus Pectin 750 mgSource Naturals2 g
- Modified Citrus Pectin 800 mgNOW3 g
- Modified Citrus Pectin PowderVitamins Direct4 g
- Modified Citrus Pectin PowderAllergy Research Group · off the market3 g
- Modified Citrus Pectin PowderNutriCology3.75 g
- Modified Citrus Pectin PowderDC3.5 g
- Modus Chocolate FlavorModus9 g
- Monk FruitHealth Ranger Selectno amount
- MonolaurinHealth From The Sun1 g
- Monster Amino Blue RaspberryCytoSportno amount
- Monster Amino Fruit PunchCytoSportno amount
- Monster Amino Sour AppleCytoSportno amount
- Monster Amino Sour GrapeCytoSportno amount
- Monster Blend "Weidman's" Chocolate Peanut Butter BananaCytoSport1 g
- Monster Blend "Weidman's" Chocolate Peanut Butter BananaCytoSport Monster Series1 g
- Monster Blend ChocolateCytoSport Monster Series2 g
- Monster Blend VanillaCytoSport Monster Series1 g
- Monster Food ChocolateCytoSport1 g
- Monster Food VanillaCytoSport1 g
- Monster Initiate Blue RaspberryCytoSport3 g
- Monster Initiate Fruit PunchCytoSport3 g