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 174 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Women's Advanced Protein Vanilla Ice CreamGNC Pro Performance AMP1 g
- Women's Complete Daily Nutritional PacketsNature's Bounty Prescriptive Formulas · off the market1 g
- Women's Complete Daily PacksNature's Bounty Prescriptive Formulas1 g
- Women's GreensInnate Response Formulas3 g
- Women's Multi 40+ Organic BerryGarden of Life MyKind Organics2 g
- Women's Multi Organic BerryGarden Of Life MyKind Organics2 g
- Women's Multivitamin Berry Citrus Flavored GummiesNew Chapter2 g
- Women's RebuildYerba Prima2.4 g
- Women's Sugar Free Multi Natural Blueberry Flavorvitafusion4 g
- Women's Wellness Urinary On Tract Cherry FlavoredRenew Life1 g
- Women+40 GreensInnate Response Formulas3 g
- WomenSense MoodFood Suntheanine & Whey ProteinNatural Factors2 g
- Worldwide Pure Protein Strawberry CreamMET-Rx · off the marketno amount
- X Blend Seven BananaXcel Sports Nutrition · off the market5 g
- X Blend Seven ChocolateXcel Sports Nutrition · off the market5 g
- X Blend Seven Cookies 'N CreamXcel Sports Nutrition · off the market5 g
- X Blend Seven StrawberryXcel Sports Nutrition · off the market5 g
- X Blend Seven VanillaXcel Sports Nutrition · off the market5 g
- X500 German Chocolate FlavorUbervita · off the market8 g
- Xcelerate Watermelon BerryBeneve2 g
- XeTRM Crisp Apple FlavorBeyond2 g
- XeTRM Wild Berry FlavorBeyond2 g
- Xpel Stick Packs Strawberry MangoMHP Maximum Human Performance1 g
- XT3 Fruit PunchMM Sports Nutritionno amount
- XT3 Pink LemonadeMM Sports Nutritionno amount
- XT3 Pink OrangeMM Sports Nutritionno amount
- Xtinguisher Fruit PunchMM Sports Nutritionno amount
- Xtreme Size Up ChocolateMET-Rx8 g
- Xtreme Size Up VanillaMET-Rx6 g
- Xtreme TrimVitamin World1 g
- XylitolBulkSupplements.com · off the marketno amount
- Xylitol Powder 4 gBulkSupplements.comno amount
- Ya Ya SyrupRag Tag Health · off the marketno amount
- Yacon SlimDietWorks2 g
- Yacon SyrupTru Body Wellness · off the marketno amount
- Yacon SyrupChoice Nutrition Supplements · off the marketno amount
- Yacon SyrupCellusyn Laboratories · off the marketno amount
- Yacon SyrupBIOVEAno amount
- Yacon SyrupNutriPharm · off the marketno amount
- Yacon SyrupZintin a blend
- Yacon SyrupAmazon Therapeuticsno amount
- Yacon Syrup 5000Justified Laboratoriesno amount
- Yeast-Defense FormulaLuckyVitamin1 g
- Yogurt & Protein BlueberryAbout Timeno amount
- Young Athlete Natural ChocolatePhenom Nutrition · off the market1 g
- Young Athlete Natural VanillaPhenom Nutrition · off the market1 g
- Yum-Yum GOS SyrupJarrow Formulas · off the market3 g
- Yum-Yum PS100 Gummies Strawberry FlavorJarrow Formulas · off the marketno amount
- Yumberry Juice PowderBIOVEA Natural Foodsno amount
- Zenith NANO 250 Liquid Kratom ExtractKraken Kratomno amount