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 73 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- ISOFLEX Pineapple CoconutALLMAXno amount
- ISOFLEX StrawberryALLMAXno amount
- IsoFlex VanillaALLMAX NUTRITION · off the market0.3 g
- ISOFLEX VanillaALLMAXno amount
- IsoFusion Premium Whey Isolate Milk ChocolateGaspari Nutritionno amount
- IsoFusion Premium Whey Isolate Orange CreamGaspari Nutritionno amount
- IsoFusion Premium Whey Isolate Vanilla Ice CreamGaspari Nutritionno amount
- IsoJect ChocolateEvogen Naturals1 g
- Isoject Ice Cream SandwichEvogenno amount
- IsoJect Vanilla BeanEvogen Naturalsno amount
- Isolate Build Rich Chocolate Flavorfuel:one · off the market1 g
- Isolate ChocolateEPIQ · off the marketno amount
- Isolate Chocolate Ice CreamSNI Hardcore Series · off the market5 g
- Isolate Chocolate TruffleStrongGirl · off the market1 g
- Isolate Complete Chocolate Fudge BrownieNutracore Nutrition · off the market2 g
- Isolate Matrix Chocolate4 Dimension Nutrition · off the marketno amount
- Isolate Matrix Strawberry4 Dimension Nutrition · off the marketno amount
- Isolate Matrix Vanilla4 Dimension Nutrition · off the marketno amount
- Isolate Milk & CookiesSNI Hardcore Series · off the market5 g
- Isolate Milk ChocolateEPIQ · off the market1 g
- Isolate ProteinGoliath Labs Performance Series · off the marketno amount
- Isolate Protein ChocolateGoliath Labs1 g
- Isolate Protein Decadent ChocolateSirenLabs1 g
- Isolate Protein StrawberryGoliath Labs1 g
- Isolate Protein UnflavoredGoliath Labs1 g
- Isolate Protein VanillaGoliath Labs1 g
- Isolate Rich VanillaEPIQ · off the market1 g
- Isolate VanillaEPIQ · off the marketno amount
- Isolate Vanilla Ice CreamSNI Hardcore Series · off the market5 g
- Isolate Vanilla Ice CreamStrongGirl · off the marketno amount
- Isolate Whey Protein Cappuccino FlavorMuscle Feastno amount
- Isolate Whey Protein ChocolateMuscle Feastno amount
- Isolate Whey Protein Chocolate FlavorMuscle Feastno amount
- Isolate Whey Protein Chocolate FlavorMRM Nutrition1 g
- Isolate Whey Protein Chocolate MaltMRM · off the market1 g
- Isolate Whey Protein French VanillaMRM · off the market1 g
- Isolate Whey Protein Mocha FlavorMuscle Feastno amount
- Isolate Whey Protein Pumpkin Spice FlavorMuscle Feastno amount
- Isolate Whey Protein Strawberry Cheesecake FlavorMuscle Feastno amount
- Isolate Whey Protein UnflavoredMuscle Feastno amount
- Isolate Whey Protein Vanilla FlavorMuscle Feastno amount
- Isolate Whey Protein Vanilla FlavoredMRM Nutrition1 g
- Isolated Soy Protein 95 ChocolateGNC Pro Performance1 g
- Isolation ChocolateBlackstone Labs1 g
- ISONatural ChocolateALLMAX1 g
- IsoNatural Pure Whey Protein Isolate UnflavoredALLMAXno amount
- IsoNatural Pure Whey Protein Isolate VanillaALLMAXno amount
- ISONatural UnflavoredALLMAXno amount
- ISONatural VanillaALLMAXno amount
- IsoNatural Whey Protein Isolate UnflavoredALLMAX · off the marketno amount