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 23 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- CarbaleanNutracore Nutrition · off the marketin a blend
- Carbo MaxNutraBiono amount
- Carbo Max UnflavoredMM Sports Nutritionno amount
- Carbo-FuelRyno Powerno amount
- Carbo-Pro Non-Sweet Neutral FlavorNature Smart CARBOPRO · off the marketno amount
- CarboLean UnflavoredMuscle Feastno amount
- Carbon Build Chocolate MilkshakeBIOLAYNE2 g
- Carbon Build Salted CaramelBIOLAYNE1 g
- Carbon Build Vanilla Ice CreamBIOLAYNE1 g
- Carbonx Revolutionary Super Carb Matrix ChocolateVPX3 g
- Carbonx Revolutionary Super Carb Matrix LemonadeVPXno amount
- Carbonx Revolutionary Super Carb Matrix NaturalVPXno amount
- CarbonX Revolutionary Super Carb Matrix StrawberryVPXno amount
- Carbonx Revolutionary Super Carb Matrix VanillaVPXno amount
- Cardio Care ExtremeNatural Guardian · off the marketno amount
- Cardio for Life Grape FlavorThe Health Guardianin a blend
- Cardio MiracleCardio Miracleno amount
- Cardio Rush Blue RaspberryRoyal Sport · off the market2 g
- Cardio Rush Fruit PunchRoyal Sport · off the market2 g
- Cardio SentialsReliv1 g
- Cardio-SupportXtendlife1 g
- CardioFitMD Berry Lemonade1MD Nutrition8 g
- Cardiogenics Intensive CareMetagenics1 g
- CardioSentialsReliv1 g
- CardioSentials Cherry Berry FlavorReliv1 g
- Carefree Chocolate Mellow Truffle Mint FlavorThe Functional Chocolate Company1 g
- Carnivor Blue RaspberryMuscleMedsno amount
- Carnivor Cherry VanillaMuscleMedsno amount
- Carnivor ChocolateMuscleMedsno amount
- Carnivor Fruit PunchMuscleMedsno amount
- Carnivor Liquid Protein Power PunchMuscleMedsno amount
- Carnivor Mass Chocolate FudgeMuscleMeds3 g
- Carnivor Mass Chocolate MacaroonMuscleMeds2 g
- Carnivor Mass Chocolate Peanut ButterMuscleMeds1 g
- Carnivor Mass Vanilla CaramelMuscleMeds1 g
- Carnivor Vanilla CaramelMuscleMedsno amount
- Carrot PowderBIOVEA Natural Foods2 g
- Carrot-Tein High Protein Energy Meal With Natural Beta CaroteneNature's Plus · off the market1 g
- Casein Chocolate4DN · off the market2 g
- Casein ChocolateBodybuilding.com Signature2 g
- Casein Chocolate MilkMusclePharm1 g
- Casein Complete Chocolate Fudge BrownieNutracore Nutrition · off the market3 g
- Casein Cookies 'N CreamMusclePharm1 g
- Casein Pro Chocolate MilkshakeUniversal1 g
- Casein Pro Vanilla Soft ServeUniversal1 g
- Casein ProteinBulkSupplements.com · off the marketno amount
- Casein Protein 24 g ChocolateNutricost1 g
- Casein Protein 24 g UnflavoredNutricostno amount
- Casein Protein 25 g ChocolateNutricost1 g
- Casein Protein 25 g VanillaNutricostno amount