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 116 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Perfect Whey Cookies & CreamNature's Best · off the marketno amount
- Perfect Whey StrawberryNature's Best · off the marketno amount
- Perfect Whey VanillaNature's Best · off the marketno amount
- Perfomance Protein ChocolateVega Sport2 g
- Performance Probiotic Natural Acai FlavorAIVIA1 g
- Performance Protein Brownie BatterForce Factor3 g
- Performance Protein ChocolateVega Sport2 g
- Performance Protein VanillaVega Sport1 g
- Performance Protein VanillaNeoLife Sport5 g
- Performance Whey Gourmet Natural Vanilla Bean FlavorPerformance Inspired5 g
- Perm A Vite PowderAllergy Research Group3 g
- Perm A vite PowderNutriCology3 g
- PermaLean Chocoholic Cookie DoughEnergyFirst9 g
- PermaLean Stark Raving PeanutzEnergyFirst10 g
- PGX 500 mgNatural Factors SlimStyles1 g
- PGX DailyNatural Factors · off the market2 g
- PGX Daily 750 mgPGX · off the market2 g
- PGX Daily 750 mgNatural Factors4 g
- PGX Daily GranulesBioclinic Naturals5 g
- PGX Daily SinglesNatural Factors2.5 g
- PGX Daily Ultra Matrix SoftgelsNatural Factors · off the market1.5 g
- PGX Daily Ultra Matrix SoftgelsBioclinic Naturals1.5 g
- PGX Daily Ultra Matrix SoftgelsPGX · off the market4 g
- PGX Daily Ultra Matrix Softgels 750 mgNatural Factors2 g
- PGX Daily Ultra Matrix Softgels Plus MulberryBioclinic Naturals1.5 g
- PGX GranulesNatural Factors SlimStyles4 g
- PGX Satisfast Double ChocolateNatural Factors · off the market2 g
- PGX Satisfast Vegan Protein Dark ChocolateNatural Factors3 g
- PGX Satisfast Vegan Protein Very StrawberryNatural Factors3 g
- PGX Satisfast Vegan Protein Very VanillaNatural Factors2 g
- PGX Satisfast Very VanillaNatural Factors · off the market2 g
- PGX SATISFAST Whey Protein Dark ChocolateNatural Factors2 g
- PGX SATISFAST Whey Protein Very VanillaNatural Factors2 g
- PGX Vegan Protein Dark ChocolateNatural Factors4 g
- PGX Vegan Protein Very StrawberryNatural Factors · off the market4 g
- PGX Vegan Protein Very VanillaNatural Factors · off the market4 g
- pH Alkalizer PM Grape FlavorGreens First Pro · off the market1 g
- pH Alkalizer PM Grape FlavorGreens First1 g
- Phase 2 Carbohydrate Blocker 500 mgSource Naturals1 g
- Phase 8 VanillaMuscleTech Performance Series1 g
- Phase II: 6-Fiber BlendNature's Way1 g
- Phase III: Digestive SweepNature's Way1 g
- Phase III: Herbal Digestive SweepNature's Way · off the market1 g
- Phase III: Mineral Digestive SweepNature's Way · off the market1 g
- PHASE8 Milk ChocolateMuscleTech Performance Series1 g
- Phood Chocolate CaramelNutraFusion Nutritionals6 g
- Phood VanillaNutraFusion Nutritionals6 g
- Phospholipid Colostrum with Sunflower PhospholipidsAllergy Research Group0.1 g
- Phospholipid Colostrum with Sunflower PhospholipidsNutriCology0.1 g
- PhysioWhey Whey Protein Powder ChocolatePhysioLogics · off the market1 g