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.

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).

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.

In which products and brands?

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 29 of 175), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Clear Protein Double ChocolateFINAFLEXno amount
• Clear Protein Savage Peach TeaEnhancedno amount
• Clear Protein VanillaFINAFLEXno amount
• Clear Protein Vanilla CaramelFINAFLEXno amount
• Clear Protein Vanilla Ice CreamFINAFLEXno amount
• Clear Response VanillaInnate Response Formulas2 g
• Clear Soluble Fiber Supplementup&up3 g
• ClearFiber PowderVitabase6 g
• Clearly FiberDaVinci Laboratories of Vermont · off the market5 g
• Clearly FiberDaVinci Laboratories5 g
• Clinical Fiber TabsAnabolic Laboratories · off the market2 g
• Clinical Nutrients 45 - Plus WomenIntegrative Therapeutics2 g
• Clinical Nutrients Eye FormulaIntegrative Therapeutics1 g
• Clinical Nutrients For DiabeticsIntegrative Therapeutics1 g
• Clinical Nutrients for Female TeensIntegrative Therapeutics1 g
• Clinical Nutrients for Male TeensIntegrative Therapeutics1 g
• Clinical Nutrients For MenIntegrative Therapeutics1 g
• Clinical Nutrients For WomenIntegrative Therapeutics1 g
• Clinical Nutrients Prenatal FormulaIntegrative Therapeutics1 g
• Coco BerriIVL Institute For Vibrant Living · off the market1.25 g
• Coco BerriIVL1 g
• Cocoa Caramel Collagen LatteVital Proteins0.5 g
• Cocoa HGHDaVinci Laboratories of Vermont · off the market1 g
• Cocoa HGHDaVinci Laboratories1 g
• CocoaMind Mint ChocolateLife Extension4 g
• CocoaVia Brand Sweetened Dark Chocolate MixMars Symbioscience1 g
• CocoaVia Brand Unsweetened Dark Chocolate MixMars Symbioscience1 g
• CocoaVia Sweetened Dark Chocolate Flavored MixMars Botanical · off the market1 g
• CocoaVia Unsweetened Dark Chocolate Flavored MixMars Botanical · off the market1 g
• Coconut CleanseGarden Greens3 g
• Coconut MilkBareOrganics · off the marketno amount
• Coconut Milk PowderBIOVEA Natural Foodsno amount
• Coconut OilSundown Naturalsno amount
• Coconut OilGarden Greensno amount
• Coconut Palm SugarBareOrganicsno amount
• Cod Liver OilGM Germano amount
• Cod Liver Oil 500 mgGM Germano amount
• Coenzyme Q10 30 mg Lipoic Acid 30 mgSource Naturals1 g
• Coenzyme Q10 Lipoic Acid 30 mg / 30 mgSource Naturals1 g
• Coffee & Protein MoccachinoAbout Timeno amount
• Coffee & Vegan Protein MoccachinoAbout Timeno amount
• Cold-Milled Flax SeedsGNC Natural Brand · off the market4 g
• CollaGENOrtho Molecular Products1 g
• Collagen + Greens UnflavoredCountry Farms1 g
• Collagen + Protein Bone Broth ChocolateTerra Origin · off the market1 g
• Collagen 1000 mgSpring Valley1 g
• Collagen Beauty Greens Vanilla CoconutVital Proteins · off the market2 g
• Collagen Beauty Infusion with Biotin Cranberry FlavorNeoCell1 g
• Collagen Beauty Peach MangoPlantFusion6 g
• Collagen Beauty Strawberry LemonadePlantFusion6 g

Where next?

• Fiber gummies
• Check an amount of fiber
• Labels above the upper limit
• All ingredients