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 14 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- AR-5 Juicy GrapeAST Sports Scienceno amount
- AR-5 Lemon IceAST Sports Scienceno amount
- Arabinex Larch ArabinogalactanThorne Research · off the market4 g
- Arabino SAPNFH3 g
- Arabinogalactan PowderDaVinci Laboratories4 g
- Arginine Citrulline PowderMH Michael's Health Naturopathic Programsin a blend
- Arginine PlusMetagenics1 g
- ArginMaxGNC Women's1.5 g
- ArginMaxGNC1 g
- ArginMaxGNC Men's1 g
- ArginMax Timed-ReleaseGNC Men's · off the market1 g
- ARM Plus+ Fruit SmoothieMax Muscle Nutrition1 g
- ARM Plus+ Intense StrawberryMax Muscle Nutrition1 g
- ARM Plus+ Orange Citrus BlastMax Muscle Nutrition1 g
- ARM Plus+ Peach Mango RushMax Muscle Nutrition1 g
- ARM Plus+ Tropical Fruit PunchMax Muscle Nutrition1 g
- ARM Plus+ Watermelon SplashMax Muscle Nutrition1 g
- Arnold Iron Mass Chocolate MaltMusclePharm1 g
- Arnold Iron Mass Vanilla MaltMusclePharm1 g
- Arnold Iron Whey ChocolateMusclePharm0.5 g
- Arnold Iron Whey VanillaMusclePharmno amount
- Arsenal Training PacksMET-Rx3 g
- Artri KingPlantas Medicinales de Mexicono amount
- AS Fit Chocolate FlavorAmeriSciences · off the market2 g
- Ashwagandha PowderMoringa Source · off the market2 g
- Ashwagandha Root PowderMaju Superfoods1 g
- AspartameBulkSupplements.com · off the marketno amount
- Aspartame Powder 1000 mgBulkSupplements.comno amount
- Assure Detox Straw-Mango FlavorTotal Eclipse9 g
- Assure Detox Strawberry MangoTotal Eclipse · off the market9 g
- Assure Detox Tropical FlavorTotal Eclipse9 g
- Astragalus 500 mgVitabase0.5 g
- Astragalus 500 mgLuckyHerbs1 g
- Astragalus 500 mgNOW1 g
- Astragalus RootNature's Way1 g
- Astragalus RootBareOrganics · off the market2 g
- Astragalus Root 470 mgNature's Way · off the market1 g
- Astraguls RootBareOrganics · off the market2 g
- Athlete's Whey Chocolate ShakeDymatize · off the market1 g
- Athlete's Whey Cookies & CreamDymatize · off the marketno amount
- Athlete's Whey Vanilla ShakeDymatize · off the marketno amount
- Athletes Whey ChocolateXcel Sports Nutrition · off the market1 g
- Athletes Whey Chocolate P'Butter SwirlXcel Sports Nutrition · off the market1 g
- Athletic Greens Ultimate DailyAthletic Greens2 g
- Atlas ChocolateLegion · off the market2 g
- Atlas Dutch ChocolateLegion2 g
- ATP Muscle Blast Chocolate & Vanilla FlavorMMUSA1 g
- ATP Muscle Blast Creamy Rich BerriesMMUSA3 g
- ATP Muscle Blast Passion Fruit & Vanilla FlavorMMUSA1 g
- ATP Muscle Blast Wild Berry & Vanilla FlavorMMUSA1 g