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

• Hydration+ Blueberry Acai FlavoredMRM Nutrition1 g
• Hydration+ Orange Mango FlavoredMRM Nutrition1 g
• Hydro GainerChaotic-Labz10 g
• Hydro Isolate Peak Milk ChocolateInner Armour Sports Nutritionno amount
• Hydro Isolate Peak VanillaInner Armour Sports Nutritionno amount
• Hydro Isolate Protein Lava CakeMRI Performance · off the market1 g
• Hydrocil InstantNumark Brands5.4 g
• Hydrolyzed CollagenVitamin World1 g
• Hydrolyzed Collagen + Probiotics Dark Chocolate FlavorDivine Health1 g
• Hydrolyzed Collagen Peptides Dark ChocolateSR Sports Research2 g
• Hydrolyzed Marine Collagen Peptides with CocoaSolumeve2 g
• Hydrolyzed Protein Collagen Decadent ChocolateBody Kitchen2 g
• Hydrolyzed Whey ProteinThorne Research · off the marketno amount
• Hydrolyzed Whey Protein BananaAmazing Muscleno amount
• Hydrolyzed Whey Protein ChocolateAmazing Muscleno amount
• Hydrolyzed Whey Protein Chocolate FlavorMuscle Feastno amount
• Hydrolyzed Whey Protein Cookies & CreamAmazing Muscleno amount
• Hydrolyzed Whey Protein StrawberryAmazing Muscleno amount
• Hydrolyzed Whey Protein UnflavoredMuscle Feastno amount
• Hydrolyzed Whey Protein VanillaAmazing Muscleno amount
• Hydrolyzed Whey Protein VanillaMuscle Feastno amount
• Hydrolyzed Whey Protein Vanilla FlavorMuscle Feastno amount
• Hyper Shock Furious Fruit-PuncHMYOGENIXno amount
• Hyper Shock Rage Atomic GrapeMYOGENIXno amount
• Hyper Shock Rage Blue RaspberryMYOGENIXno amount
• Hyper Shock Rage Cherry BombMYOGENIXno amount
• Hyper Shock Rage Electric OrangeMYOGENIXno amount
• Hyper Shock Rage Furious Fruit PunchMYOGENIXno amount
• Hyper Shock Tropical ThunderMYOGENIXno amount
• Hyper-Charge GrapeGNC GenetixHD · off the market2.5 g
• Hyper-Charge Raspberry LemonadeGNC GenetixHD · off the market2.5 g
• Hyper-Gro Birthday CakeiSatori2 g
• Hyper-Gro Rich ChocolateiSatori4 g
• Hyper-Gro Rich Smooth VanillaiSatori1 g
• Hyper-Gro Rich Strawberry SwirliSatori1 g
• Hyrdrolyzed Collagen + Probiotics French Vanilla FlavorDivine Health · off the market0.5 g
• I -CONTROL Appetite ReducerbmiSmart · off the market1 g
• I-BLOCK Carb & Sugar BlockerbmiSmart · off the market1 g
• I-RemovebmiSmart · off the market1 g
• I-RemoveInQpharm North America · off the market1 g
• I-REMOVE Fat BinderbmiSmart · off the market1 g
• i-SabiHealth Logics2.5 g
• I-VegiehillsHerbal Hills0.263 g
• I-Vegiehills Green Food SupplementHerbal Hills0.79 g
• i5 Biotransformation Formula ChaiXYMOGEN EP · off the market4 g
• i5 Biotransformation Formula Chocolate MintXYMOGEN EP · off the market5 g
• i5 Biotransformation Formula Creamy ChocolateXYMOGEN EP · off the market5 g
• i5 Biotransformation Formula Vanilla DelightXYMOGEN EP · off the market4 g
• i5 Biotransformation Shake Mix ChaiXYMOGEN EP7 g
• i5 Biotransformation Shake Mix Chocolate MintXYMOGEN EP9 g

Where next?

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