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 170 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- Whey Protein Isolate (90% Protein) UnflavoredBulkSupplements.com · off the marketno amount
- Whey Protein Isolate 30 gBulkSupplements.comno amount
- Whey Protein Isolate 30 g Cake BatterNutricostno amount
- Whey Protein Isolate 30 g Chocolate PBNutricost1 g
- Whey Protein Isolate 30 g Cookies N CreamNutricost1 g
- Whey Protein Isolate 30 g Milk ChocolateNutricost1 g
- Whey Protein Isolate 30 g MochaNutricostno amount
- Whey Protein Isolate 30 g Salted CaramelNutricostno amount
- Whey Protein Isolate 30 g Strawberry AcaiNutricostno amount
- Whey Protein Isolate 30 g Strawberry MilkshakeNutricostno amount
- Whey Protein Isolate 30 g UnflavoredNutricostno amount
- Whey Protein Isolate 30 g VanillaNutricostno amount
- Whey Protein Isolate Birthday CakeAbout Timeno amount
- Whey Protein Isolate ChocolateAbout Timeno amount
- Whey Protein Isolate ChocolateThorne Research · off the market1 g
- Whey Protein Isolate ChocolateEXOS Performance Nutrition · off the market1 g
- Whey Protein Isolate ChocolatePuritan's Pride Fitness1 g
- Whey Protein Isolate ChocolatePrecision Engineered1 g
- Whey Protein Isolate ChocolateKaged1 g
- Whey Protein Isolate ChocolateLiveGood1 g
- Whey Protein Isolate Chocolate Dipped MacaroonNutraBio Performance1 g
- Whey Protein Isolate Chocolate FlavorTad The Diet Coachno amount
- Whey Protein Isolate Chocolate FlavorExtreme Edge0.5 g
- Whey Protein Isolate Chocolate FlavoredThorne Research · off the market1 g
- Whey Protein Isolate Chocolate FlavoredEXOS Performance Nutrition · off the market1 g
- Whey Protein Isolate Chocolate FlavoredThorne1 g
- Whey Protein Isolate Chocolate Flavored PerfectionTwinlab CleanSeries1 g
- Whey Protein Isolate Chocolate Peanut ButterKagedno amount
- Whey Protein Isolate Cookies & CremeNOW Sportsno amount
- Whey Protein Isolate Creamy ChocolateLake Avenue Nutrition2 g
- Whey Protein Isolate Creamy ChocolateNOW Sports2 g
- Whey Protein Isolate Creamy VanillaLake Avenue Nutrition1 g
- Whey Protein Isolate Creamy VanillaNOW Sports1 g
- Whey Protein Isolate Dark ChocolateCalifornia Gold Nutrition SPORT1 g
- Whey Protein Isolate Dutch ChocolateNOW Sports · off the market2 g
- Whey Protein Isolate Dutch ChocolateSR Sports Research2 g
- Whey Protein Isolate French VanillaBodyTechno amount
- Whey Protein Isolate Hydrolyzed Powder 30 gBulkSupplements.comno amount
- Whey Protein Isolate Hydrolyzed Powder 30 mgBulkSupplements.comno amount
- Whey Protein Isolate Natural Chocolate FlavorISOPURE1 g
- Whey Protein Isolate Natural UnflavoredNOW Sports · off the marketno amount
- Whey Protein Isolate Natural UnflavoredProtocol For Life Balance · off the marketno amount
- Whey Protein Isolate Natural VanillaNOW Sports · off the market1 g
- Whey Protein Isolate Peanut ButterAbout Timeno amount
- Whey Protein Isolate Powder 30 gBulkSupplements.comno amount
- Whey Protein Isolate Powder ChocolateAntler Farms · off the market1 g
- Whey Protein Isolate Powder Chocolate FlavorBluebonnet0.5 g
- Whey Protein Isolate Powder Mixed BerryAntler Farms · off the marketno amount
- Whey Protein Isolate Rich ChocolateBodyTech1 g
- Whey Protein Isolate S'moresKaged1 g