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 169 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 ChocolateTerra Origin1 g
- Whey Protein ChocolateAIVIA2 g
- Whey Protein ChocolateLake Avenue Nutrition2 g
- Whey Protein Chocolate BrownieOath Nutrition1 g
- Whey Protein Chocolate FlavoredLadder3 g
- Whey Protein Chocolate FlavoredMRM Nutrition1 g
- Whey Protein Chocolate FlavoredJarrow Formulas1 g
- Whey Protein Chocolate MilkshakeIMSOALPHA1 g
- Whey Protein Chocolate Nutter ButterGHOST2 g
- Whey Protein CinnabonGHOSTno amount
- Whey Protein Coconut Ice CreamGHOSTno amount
- Whey Protein Coffee Ice CreamGHOSTno amount
- Whey Protein Complete Rich ChocolateSierra Fit1 g
- Whey Protein Complete VanillaSierra Fitno amount
- Whey Protein Complex Double ChocolateGNC Pro Performance1 g
- Whey Protein Complex Gourmet VanillaMarked Nutrition · off the market3 g
- Whey Protein Complex Powdered Drink Mix ChocolateGNC Pro Performance1 g
- Whey Protein Concentrate 25 g Chocolate PBNutricost1 g
- Whey Protein Concentrate 25 g Milk ChocolateNutricost1 g
- Whey Protein Concentrate 25 g Strawberry MilkshakeNutricostno amount
- Whey Protein Concentrate 25 g UnflavoredNutricostno amount
- Whey Protein Concentrate 25 g VanillaNutricostno amount
- Whey Protein Concentrate 80%BulkSupplements.comno amount
- Whey Protein Concentrate Chocolate FlavorLife Extension Wellness Code2 g
- Whey Protein Concentrate Natural UnflavoredNOW Sports · off the marketno amount
- Whey Protein Concentrate Powder 30 gBulkSupplements.comno amount
- Whey Protein Concentrate StrawberryNutraBio · off the market1 g
- Whey Protein Concentrate UnflavoredNutraBio · off the marketno amount
- Whey Protein Concentrate UnflavoredNOW Sportsno amount
- Whey Protein Cookies and Creamproject#1no amount
- Whey Protein Creamy ChocolateNOW Sports1 g
- Whey Protein Creamy StrawberryNOW Sports2 g
- Whey Protein Creamy VanillaNOW Sportsno amount
- Whey Protein Deluxe ChocolatePrecision Engineered1 g
- Whey Protein Dutch ChocolateNOW Sports · off the market1 g
- Whey Protein Dutch ChocolateDouglas Cooper Co.1 g
- Whey Protein EnergizerRainbow Light · off the market1 g
- Whey Protein Everything but the CauldronAlani Nuno amount
- Whey Protein French Vanilla FlavoredJarrow Formulas1 g
- Whey Protein Frosted FlurryAlani Nuno amount
- Whey Protein Frosted Sugar CookieGHOST1 g
- Whey Protein Fruity Cereal MilkGHOSTno amount
- Whey Protein Gold Isolate Plus ChocolateCalifornia Academy of Health · off the market1 g
- Whey Protein Gold Isolate Plus Natural Chocolate FlavorCalifornia Academy of Health1 g
- Whey Protein Gold Isolate Plus Natural VanillaCalifornia Academy of Health · off the market3 g
- Whey Protein Gold Isolate Plus Natural Vanilla FlavorCalifornia Academy of Health1 g
- Whey Protein Gold Isolate Plus VanillaCalifornia Academy of Health · off the market1 g
- Whey Protein Hydrolysate Creamy ChocolateNOW Sports1 g
- Whey Protein IsolateAN Amazing Nutrition Amazing Formulasno amount
- Whey Protein Isolate (90% Protein)BulkSupplements.com · off the marketno amount