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

• Warrior Blend Protein NaturalSunwarrior2 g
• Warrior Blend Protein VanillaSunwarrior3 g
• Warrior Blend VanillaSunwarrior1 g
• Warrior Food ChocolateWarrior Force1 g
• Warrior Food Extreme Chocolate PlusWarrior Force · off the market1 g
• Warrior Food Extreme Chocolate PlusWarriorForce · off the market1 g
• Warrior Food Extreme Vanilla PlusWarriorForce · off the market0.7 g
• Warrior Food Extreme Vanilla PlusWarrior Force · off the market0.7 g
• Warrior Food NaturalWarrior Force1 g
• Warrior Food VanillaWarrior Force1 g
• Warrior FoundationWarriorForce2.6 g
• Warrior GreensWarriorForce1.5 g
• Warrior Whey ChocolateTapout Sports Nutrition2 g
• Warrior Whey VanillaTapout Sports Nutrition0.5 g
• WatermelonadeEclectic Herb1 g
• Waves of Whey Protein Apple FritterNorthbound Nutritionno amount
• Waves of Whey Protein Caramel Kettle CornNorthbound Nutritionno amount
• Waves of Whey Protein Chocolate Freak ShakeNorthbound Nutritionno amount
• Waves of Whey Protein Cinnamon FrostingNorthbound Nutritionno amount
• Waves of Whey Protein Cookies & Cream Cake BatterNorthbound Nutritionno amount
• Waves of Whey Protein Lemon Sugar CookieNorthbound Nutritionno amount
• Waves of Whey Protein Maple Pecan WafflesNorthbound Nutritionno amount
• Waves of Whey Protein Mini MarshmallowsNorthbound Nutritionno amount
• Waves of Whey Protein Peanut Butter Banana SandwhichNorthbound Nutritionno amount
• Waves of Whey Protein Pumpkin Apple ButterNorthbound Nutritionno amount
• Waves of Whey Protein Strawberry Cream PuffNorthbound Nutritionno amount
• Waximaize Fruit PunchIDSno amount
• Waximaize GrapeIDS · off the marketno amount
• Waximaize Natural FlavorIDS · off the marketno amount
• Waxy MaizeNutraBiono amount
• Waxy Maize 100% Pure PowderNOW Sports · off the marketno amount
• Waxy Maize UnflavoredMuscle Feastno amount
• Way Better Than Whey. Vanilla ChaiOra2 g
• WeedosBlaze0.9 g
• Week One: PreparationDouglas Laboratories0.5 g
• Weight Gain ChocolateNaturade2 g
• Weight Gain VanillaNaturadeno amount
• Weight Gainer Double ChocolateGNC Pro Performance5 g
• Weight Gainer Strawberries & CreamGNC Pro Performance3 g
• Weight Gainer Vanilla Ice CreamGNC Pro Performance3 g
• Weight Loss Drink Mix French VanillaNatural Factors SlimStyles4 g
• Weight Loss Whey Cookies N' CremeImage Sportsno amount
• Weight Loss Whey Vanilla Graham CrackerImage Sportsno amount
• Weight ManagementEsmond Natural1 g
• Well + Collagen Boost Meyer Lemon Teazolt.1 g
• Well +Collagen Boostzolt.1 g
• WellBetX PGX Plus MulberryNatural Factors2 g
• WellBetX PGX Ultra Matrix Softgels Plus MulberryNatural Factors2 g
• WellBetX PGX Weight Management Shake ChocolateNatural Factors6 g
• WellBetX PGX Weight Management Shake French VanillaNatural Factors5 g

Where next?

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