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 126 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Probolic-SR VanillaMHP Maximum Human Performanceno amount
- ProCrunch Lite Chocolate CrispGNC Pro Performance2 g
- ProCrunch Lite Cinnamon BunGNC Pro Performance2 g
- ProCrunch Lite Peanut Butter CupGNC Pro Performance2 g
- ProdreneNewtonEverett · off the marketno amount
- Prodrene Cinnamon Vanilla FlavorNewtonEverett1 g
- Prodrene Vanilla FlavorNewtonEverett · off the marketno amount
- ProEnergy Chocolate DecadenceEnergyFirst1 g
- ProEnergy Natural-UnflavoredEnergyFirstno amount
- ProEnergy Strawberry SupremeEnergyFirstno amount
- ProEnergy Ultimate VanillaEnergyFirstno amount
- Professional Strength Muscle Building Milkshake Rich Vanilla Ice Cream MilkshakeSix Star Muscle · off the market1 g
- Professional Strength Muscle Building Milkshake Triple Chocolate Fudge MilkshakeSix Star Muscle · off the market1 g
- Professional Strength Whey Protein Double Chocolate SupremeSix Star Muscle · off the market0.5 g
- ProFiber SelectMoss Nutrition10 g
- ProFiber Select OrangeMoss Nutrition20 g as transcribed, likely a slip
- ProGI Soothe French VanillaNuMedica · off the market3.3 g
- ProGI Soothe Vanilla FlavorNuMedica5 g
- Proglycosyn Orange CreamSNAC Nutritionno amount
- Proglycosyn Vanilla CreamSNAC Nutrition1 g
- ProGreensAllergy Research Group · off the marketin a blend
- ProGreensNutriCology1.2 g
- ProGreens Capsules with Advanced Probiotic FormulaNutriCologyin a blend
- ProGreens Energy with NTFactorNutriCology2 g
- ProGreens with Advanced Probiotic FormulaNutriCology1.2 g
- Prolific Isolate ChocolateSTI Presents G6 Sports · off the marketno amount
- Prolific Isolate Chocolate Peanut ButterG6 Sportsno amount
- Prolific Isolate Raspberry GelatoG6 Sportsno amount
- Prolific Isolate VanillaSTI Presents G6 Sportsno amount
- Proline & LysineSource Naturals1 g
- Promasil Milk ChocolateRivalusno amount
- Promasil Soft Serve VanillaRivalusno amount
- Promasil StrawberryRivalusno amount
- Promasil VanillaRivalusno amount
- Promend Prebiotic Fiber GummiesPromend · off the market5 g
- ProPerfect Smooth VanillaNutra Perfect · off the market1.55 g
- ProQuick Vanilla CreamScientific Nutrition For Advanced Conditioning SNACno amount
- PROSHAPE (Amino)FitLine0.77 g
- ProShape Bourbon VanillaFitLine2.5 g
- ProShape ChocolateFitLine3.3 g
- Prosta-ResponseSource Naturals3 g
- ProstaPurePhysician's Strengthno amount
- Prostar 100% Whey Protein BananaUltimate Nutrition · off the marketno amount
- Prostar 100% Whey Protein Chocolate CremeUltimate Nutrition · off the marketno amount
- Prostar 100% Whey Protein Chocolate MintUltimate Nutrition · off the marketno amount
- Prostar 100% Whey Protein CocoaUltimate Nutrition · off the marketno amount
- Prostar 100% Whey Protein Cocoa MochaUltimate Nutrition · off the marketno amount
- Prostar 100% Whey Protein Cookies N' CreamUltimate Nutrition · off the marketno amount
- Prostar 100% Whey Protein Cookies N' CremeUltimate Nutrition · off the marketno amount
- Prostar 100% Whey Protein NaturalUltimate Nutrition · off the marketno amount