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 78 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Kids Probiotic 3 Billion CFU Cherry FlavorGarden of Life · off the market1.5 g
- Kids ProbioticsLife · off the market4 g
- Kids Probiotics 6 Billion Tropical FlavorLife Nutrition0.01 g as transcribed, likely a slip
- Kids ShotBee&Youno amount
- Kids Sugar-Free Gummies Yummy Natural Strawberry FlavorTruBiotics1.8 g
- Kids Super Vitamins Mixed Berry FlavoredOrgain · off the market3 g
- Kids Vita Plus Natural Orange FlavorGuardian Healthno amount
- Kids Vitamin D3 20 mcg (800 IU) Orange FlavorGarden of Life · off the market1 g
- Kids Yummy Cherry BerryGarden of Life Vitamin Code · off the market1 g
- Kids! GoLive Probiotic + Prebiotic Berry-Licious Fruit PunchMass Probiotics2 g
- Kidz Protein Powder VanillaPure Kidz · off the market1 g
- Kidz Superfood Outrageous ChocolateAmazing Grass1 g
- Kidz SuperFood Outrageous Chocolate FlavorAmazing Grass1 g
- Kidz Superfood Outrageous Chocolate FlavoredAmazing Grass1 g
- Kidz Superfood Protein + Probiotics Strawberry Blast FlavoredAmazing Grass1 g
- Kidz SuperFood Wild Berry FlavorAmazing Grass · off the market1 g
- Kill Cliff The Recovery DrinkKill Cliffno amount
- Kin BloomKin Euphorics6 g
- Kinetic Watermelon CandyAmbrosia Collective1 g
- King Mass XL Dark ChocolateRonnie Coleman Signature Series1.5 g
- King Mass XL Strawberry MilkshakeRonnie Coleman Signature Series1.5 g
- King Mass XL Vanilla Ice CreamRonnie Coleman Signature Series1 g
- Kiss Your Blues Away Berry Coconut Cooler FlavoredKOS5 g
- Kiwi RegularityEnzymedica1 g
- KLB6 Grapefruit Diet PlanGood 'N Natural · off the market2 g
- Klean Casein Natural Chocolate FlavorKlean Athlete · off the market1 g
- Klean Isolate Natural Chocolate FlavorKlean Athlete1 g
- Klean Isolate Natural Vanilla FlavorKlean Athlete1 g
- Klean Plant-Based Protein Natural Vanilla FlavorKlean Athlete2 g
- Klean Recovery Milk Chocolate FlavorKlean Athlete1 g
- Konjac Root Glucomannan GoldNutriGold · off the market2 g
- Konjac Root Glucomannan Pure PowderBest Naturals2 g
- Konjac Root PowderHerbal Secrets2 g
- Konsyl Orange Extra Strength FormulaKonsyl9 g
- Krea-Karb StrawberryKiwiXLSN Xcel Sports Nutrition · off the market1 g
- Krebs Cycle ChelatesEnzymatic Therapy · off the market1 g
- Krebs Cycle ChelatesNature's Way · off the market1 g
- Krebs Magnesium PotassiumEnzymatic Therapy · off the market1 g
- Kuka Flex ForteKukamonga Bienestar y Saludno amount
- Kyo-Red Antioxidant Superfruit BlendWakunaga of America · off the market1 g
- Kyolic Formula 152Kyolic1 g
- L-Arginine 500 mg L-Ornithine 500 mgKAL1 g
- L-Arginine Advanced 1,000 mgDr. Mercola · off the market1 g
- L-Carnosine 500 mgKAL1 g
- Lactation Support Herbal TeaGaia Herbs1 g
- Lactation Support SystemSupport Herbal TeaGaia Herbs SystemSupport · off the market1 g
- Lady BugsOra1 g
- Larch ExtractSource Naturals Wellness2 g
- Last Meal Dark ChocolateRivalusno amount
- Last Meal Smooth VanillaRivalusno amount