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

• Collagen Building Protein Peptides Chocolate Fudge FlavorSunwarrior1 g
• Collagen Building Protein Peptides Churro FlavorSunwarrior1 g
• Collagen Building Protein Peptides Coffee FlavorSunwarrior1 g
• Collagen Building Protein Peptides Peppermint Bark FlavorSunwarrior4 g
• Collagen Building Protein Peptides Salted Caramel FlavorSunwarrior1 g
• Collagen Building Protein Peptides Tahitian Vanilla FlavorSunwarrior1 g
• Collagen Building Protein Peptides UnflavoredSunwarrior1 g
• Collagen ChocolateMuscle Feastno amount
• Collagen ChocolateGiant Sports International1 g
• Collagen Coffee Morning RoastVital Proteins · off the market1 g
• Collagen ComplexDr. Mercola1 g
• Collagen Complex ChocolateDr. Mercola1 g
• Collagen ConceptsNHC Natural Healthy Concepts1 g
• Collagen Creamer Natural FlavorRapid Fire · off the marketno amount
• Collagen Creamer UnflavoredRapid Fireno amount
• Collagen Gummies 500 mgApplied Nutritionno amount
• Collagen Gummy Rings Peach BelliniOLLY1 g
• Collagen Hydrolyzed Collagen with Vitamin CNature's Bounty · off the market1 g
• Collagen Irish Creamproject#1no amount
• Collagen Multi-Type Complex UnflavoredMN Morphogen Nutritionno amount
• Collagen PeptidesDose & Co.1 g
• Collagen Peptides + MCT ChocolateGroovy Bee0.8 g
• Collagen Peptides + MCT UnflavoredGroovy Bee0.8 g
• Collagen Peptides ChocolateNaturesPlus1 g
• Collagen Peptides ChocolateVital Proteins2 g
• Collagen Peptides Chocolate FlavoredOrgain1 g
• Collagen Peptides Dark ChocolateSR Sports Research2 g
• Collagen Peptides Dark ChocolateSports Research2 g
• Collagen Peptides Natural UnflavoredFREZZOR0.2 g
• Collagen Peptides Plus Raspberry FlavoredMakana2 g
• Collagen Peptides Powder 300g + Vitamins UnflavoredFull Life1 g
• Collagen Peptides UnflavoredGroovy Bee0.8 g
• Collagen Peptides UnflavoredBrain Forzano amount
• Collagen Powder Dark Chocolate FlavorDivine Health1 g
• Collagen Powder UnflavoredDivine Health0.5 g
• Collagen ProtectMoon Juice6 g
• Collagen ProteinAntler Farms · off the marketno amount
• Collagen Protein Broth Curcumin ChiliFREZZOR0.8 g
• Collagen Protein Broth Lavender ChamomileFREZZOR0.8 g
• Collagen Protein Broth Lemon GingerFREZZOR0.8 g
• Collagen Protein Broth Seasonal HerbsFREZZOR0.8 g
• Collagen Protein ChocolateBulletproof2 g
• Collagen Protein Powder ChocolateDose & Cono amount
• Collagen Protein Powder VanillaDose & Cono amount
• Collagen Protein Shake Vanilla flavoryoutheory2 g
• Collagen Protein Shake Vanilla flavoryoutheory mens7 g
• Collagen Protein VanillaBulletproof1 g
• Collagen Sport Belgian ChocolateNeoCell Sport2.25 g
• Collagen Sport French VanillaNeoCell Sport2.25 g
• Collagen Strawberry FlavorGM Germano amount

Where next?

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