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

• Organic Superfood Golds Vanilla ChaiOrganic Muscle4 g
• Organic Superfood Greens Lemon FlavorOrganic Muscle · off the market3 g
• Organic Superfood Greens UnflavoredWarrior Strong Wellness1 g
• Organic Superfood Latte Strawberries & CremeKuli Kuli3 g
• Organic Superfood Latte Ube CoconutKuli Kulino amount
• Organic Superfood Latte Vanilla LavenderKuli Kuli1 g
• Organic Superfood Reds Berry FlavorOrganic Muscle · off the market1 g
• Organic Supergreens PowderAmazing Grass2 g
• Organic Tri-FiberHealthy Kidney6 g
• Organic Tribal EnduranceNatural Force1 g
• Organic Triple FiberRenew Life4 g
• Organic Triple FiberMicro Ingredients6 g
• Organic Triple FiberMaxAdvanced Naturals · off the market3 g
• Organic Turmeric + Black Pepper PowderHerb Affair2 g
• Organic Turmeric + GingerViva Naturals1 g
• Organic Turmeric ElixirOpportuniteasno amount
• Organic Turmeric PowderNature's Labno amount
• Organic Turmeric Root PowderHealth Ranger Select0.7 g
• Organic Vegan Protein Chocolate FlavorOrganic Muscle3 g
• Organic Vegan Protein Naturally Flavored ChocolateBoomer Nutrition2 g
• Organic Vegan Protein Naturally Flavored VanillaBoomer Nutrition1 g
• Organic Vegan Protein PowerVitamer Laboratories3 g
• Organic Vegan Protein Vanilla FlavorOrganic Muscle3 g
• Organic Vegetarian Collagen Peptides 10 g Naturally FlavoredAncient Nutrition8 g
• Organic VeggieProtein ChocolateBluebonnet Super Earth3.5 g
• Organic VeggieProtein Chocolate MochaBluebonnet Super Earth3.5 g
• Organic VeggieProtein Natural Original FlavorBluebonnet Super Earth2 g
• Organic VeggieProtein VanillaBluebonnet Super Earth3.5 g
• Organic VeggieProtein Vanilla ChaiBluebonnet Super Earth3.5 g
• Organic Veggies+Mindbodygreen · off the market3 g
• Organic Virgin Coconut OilHigher Nature · off the marketno amount
• Organic Vital FiberBrenda Watson's Vital Planet · off the market13 g
• Organic Vitamin C Acerola Cherry 500 mgDr. Mercola1 g
• Organic Wheat GrassAntler Farms1.4 g
• Organic Wheat GrassNatural Elements1 g
• Organic Wheat GrassAmazing Grass2 g
• Organic Wheat GrassBluebonnet2 g
• Organic WheatGrassBluebonnet Super Earth1.5 g
• Organic WheatgrassAmazing India0.23 g
• Organic Wheatgrass PowderHerbal Hills0.23 g
• Organic Whey Isolate ChocolateNatural Force1 g
• Organic Whey Protein 20 g ChocolatePure Power4 g
• Organic Whey Protein 20 g ChocolateNutricost Organic3 g
• Organic Whey Protein 20 g OriginalDr. Mercola1 g
• Organic Whey Protein 20 g StrawberryPure Power4 g
• Organic Whey Protein 20 g UnflavoredNutricost Organicno amount
• Organic Whey Protein 20 g VanillaPure Power4 g
• Organic Whey Protein 20 g VanillaNutricost Organicno amount
• Organic Whey Protein 20 g VanillaNutricostno amount
• Organic Whey Protein ChocolateAN Amazing Nutrition Amazing Formulasno amount

Where next?

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