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 114 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Patriot's Whey Yankee F'N DoodleMerica Labzno amount
- Patriot's Whey Yosemite S'MoresMerica Labzno amount
- Pau D' Arco Deep Cleansing 735 mgPlanetary Herbals1 g
- Pau D'Arco Extract 500 mgSource Naturals1 g
- PBP VanillaBeverly International2 g
- Pea ProteinOL Olympian Labs · off the marketno amount
- Pea ProteinNOW Sports · off the marketno amount
- Pea ProteinHerb Stop1 g
- Pea Protein ChocolateOL Olympian Labs · off the market1 g
- Pea Protein ChocolateOL Olympian Labs Lean & Healthy1 g
- Pea Protein Chocolate FlavorOL Olympian Labs Lean & Healthy · off the market1 g
- Pea Protein Cookies & Cream FlavorHerbal Secrets · off the market2 g
- Pea Protein Creamy ChocolateNOW Sports2 g
- Pea Protein Delicious Chocolate FlavorOL Olympian Labs · off the market2 g
- Pea Protein Dutch ChocolateNOW Sports · off the market2 g
- Pea Protein Dutch Chocolate FlavorHerbal Secrets · off the market2 g
- Pea Protein IsolateBulkSupplements.com1 g
- Pea Protein Isolate UnflavoredBulkSupplements.com1 g
- Pea Protein Mixed BerriesOL Olympian Labs1 g
- Pea Protein Natural UnflavoredNOW Sports · off the marketno amount
- Pea Protein Pure UnflavoredNOW Sportsno amount
- Pea Protein Shake Mint Chocolate FlavorArbonne · off the market6 g
- Pea Protein UnflavoredNOW Sports · off the marketno amount
- Pea Protein UnflavoredHerbal Secrets · off the market1 g
- Pea Protein UnflavoredLuckyVitaminno amount
- Pea Protein UnflavoredAN Amazing Nutrition Amazing Formulas1 g
- Pea Protein UnflavoredParadise1 g
- Pea Protein Unflavored and UnsweetenedNatures Plus · off the market1 g
- Pea Protein Unflavored and UnsweetenedNaturesPlus1 g
- Pea Protein VanillaOL Olympian Labs · off the market1 g
- Pea Protein VanillaOL Olympian Labs Lean & Healthy1 g
- Pea Protein VanillaPure Vegan · off the market2 g
- Pea Protein Vanilla FlavorOL Olympian Labs Lean & Healthy1 g
- Pea Protein Vanilla ToffeeNOW Sports2 g
- Pea Protein Vanilla Toffee FlavorHerbal Secrets · off the market2 g
- Pea Protein+ VanillaPure Vegan · off the market2 g
- Peach Mango Green TeaCelsius2 g
- Peak + Mushroom Complex Clementinezolt.2 g
- Peak 1:1East Fork Cultivars0.4 g
- Peak 33:1East Fork Cultivars0.4 g
- Peak BioBoostPeak Biome7 g
- Peak Blue OrchidEast Fork Cultivars0.4 g
- Peak Clementinezolt2 g
- Peak O2 2000 mg UnflavoredPrimaForce0.25 g
- Peak Organic Alkalizing GreensPeak Pure & Natural2 g
- Peak Organic SuperfruitsPeak Pure & Natural1 g
- Peak Sleep ChocolateBare Performance Nutrition2 g
- Peak Sour PineappleEast Fork Cultivars0.4 g
- Peanut Flour Protein Powder 30 gBulkSupplements.com4.6 g
- PectaClearecoNugenics1 g