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 69 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Imni Extrac Strength Fruit PunchPurified Brand · off the market14 g
- InceptionChaotic-Labzno amount
- Incredibulk Chocolate Fudge CakePS ProSupps7 g
- Incredibulk Vanilla CakePS ProSupps2 g
- Indigo GreensOrtho Molecular Products1 g
- Infinite Mass ChocolateInfinite Labs4 g
- Infinite Mass VanillaInfinite Labs1 g
- Infinite Pro 100% Whey Protein VanillaInfinite Labs1 g
- Inflama TrimSource Naturals1 g
- Inflama-GIInnate Response Formulas1 g
- Inflama-RestSource Naturals1 g
- InflammaCORE Banana CremeOrtho Molecular Products4 g
- InflammaCORE Chocolate MintOrtho Molecular Products5 g
- InflammaCORE Natural CherryOrtho Molecular Products4 g
- InflammaCORE Orange SplashOrtho Molecular Products4 g
- InflammaCORE StrawberryOrtho Molecular Products4 g
- InflammaCORE Vanilla ChaiOrtho Molecular Products3 g
- Inno GreensINNOSUPPS3 g
- Innospresso Original BlendINNOSUPPS · off the market1 g
- InosiCareOrtho Molecular Products2.5 g
- Insane Whey Birthday CakeInsane Labz0.14 g
- Insane Whey ChocolateInsane Labz1.1 g
- InsinaseMetagenics1 g
- Inspire for Women Creamy Vanilla BeanPlantFusion2 g
- Inspire for Women Natural - No SteviaPlantFusion1 g
- Inspire for Women Rich ChocolatePlantFusion2 g
- InSportRecoveryLivingFuel0.5 g
- Instant Acting Complete Body Cleaner Extra Strength LiquidPurified Brand · off the marketno amount
- Instant Ketones Coconut Cream FlavorDivine Healthno amount
- Instant Ketones Iced Limeade FlavorDivine Healthno amount
- Instant Milk & Egg Protein Powder DrinkVitamin Worldno amount
- Instant Protein Soy Mix UnflavoredShakleeno amount
- Instant ZenPrima2.5 g
- Instantized 100% Natural Whey VanillaMET-Rx · off the marketno amount
- Instantized Micellar Casein Natural UnflavoredNOW Sports · off the marketno amount
- IntestiCleanse ChocolatePure TheraPro Rx20 g as transcribed, likely a slip
- IntestiCleanse VanillaPure TheraPro Rx14 g
- IntestiFlora-7Nutrilite · off the market1 g
- Intestinal Bowel SupportMRM3 g
- Intestinal CleanserPerfect 7 · off the market2 g
- Intestinal Detox Raspberry LemonadeGNC Earth Genius · off the market2 g
- Intestinal Drawing FormulaHealthForce SuperFoods2.8 g
- Intestinal FormulaCVS Health1 g
- Intestinal Fortitude Apple Cinnamon FlavorVitamin World5 g
- Intestinal PurifierPharmax3 g
- Intestinal Repair ComplexNutra BioGenesis1 g
- Intestinal Repair Mixed Berry FlavorBarlean's Platinum2 g
- Intestinal/GI Support PackDouglas Laboratoriesin a blend
- Intra-Formance Lemon Lime1st Phormno amount
- Intra-Formance Orange1st Phormno amount