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

• Organic Chlorella TabletMicro Ingredientsno amount
• Organic Chlorella TabletsGreen Foodsno amount
• Organic ChyavanprashBanyan Botanicals · off the market0.5 g
• Organic Clean Chlorella PowderHealth Ranger Selectno amount
• Organic Clean Chlorella SL PowderHealth Ranger Select0.1 g
• Organic Clean Clorella SLHealth Ranger Select0.1 g
• Organic Clean Energy Powder Fruit PunchSuperfoods By MRM · off the market3 g
• Organic Clean Energy Powder Fruit PunchSuperfoods By MRM Nutrition3 g
• Organic Clear FiberRenew Life5 g
• Organic Clear Fiber Delicious Orange Flavor!Renew Life · off the market5 g
• Organic Clear Fiber Orange FlavorRenew Life5 g
• Organic Cocoa EnergizeGroovy Bee0.5 g
• Organic Cocoa PowderHerbal Secrets · off the market6 g
• Organic Coconut Milk PowderGroovy Beeno amount
• Organic Coconut VinegarCalifornia Academy of Health1 g
• Organic Coconut Water Flakes With Organic Orange FlavorSmart Organics1 g
• Organic Coconut Water PowderSprout Livingno amount
• Organic Collagen Powder ChocolateDr. Mercola2 g
• Organic Collagen Powder VanillaDr. Mercola · off the market1 g
• Organic Collagen Protein Chocolate FlavorCodeage4 g
• Organic Colon CleanseHealth Plus5 g
• Organic Cordyceps Mushroom PowderHealth Ranger Select0.8 g
• Organic Daily Blues BlueberryZHOU3 g
• Organic Daily C's PowderSmart Organics1 g
• Organic Daily Probiotic + Prebiotic Powder 20 BillionRenew Life3 g
• Organic Daily Reds Berry Natural FlavorZHOU3 g
• Organic Detox & Cleanse Powder Peach MangoSuperfoods By MRM · off the market2 g
• Organic Detox & Cleanse Powder Peach MangoSuperfoods By MRM Nutrition2 g
• Organic DigestThe Natural Citizen · off the market7 g
• Organic Dried Apple Peel PowderHealth Ranger Select2.4 g
• Organic Empower MaleEssential Living Foods · off the market1.5 g
• Organic EnergyThe Natural Citizen · off the market1 g
• Organic Energy UnflavoredThe Natural Citizen · off the market1 g
• Organic Fermented Apple Cider Vinegar and CayenneDr. Mercola · off the market1 g
• Organic Fermented Beet PowderDr. Mercola · off the market1 g
• Organic Fermented BeetsDr. Mercola1 g
• Organic Fermented FruitsDr. Mercola1 g
• Organic Fermented GreensDr. Mercola1 g
• Organic Fermented Medicinal Mushrooms Drink MixSoTru · off the market5 g
• Organic Fermented Protein & Greens Super Nutrition BlendSoTru · off the market1 g
• Organic Fermented Protein & Greens Vegan Superfood ShakeSoTru · off the market1 g
• Organic FiberEnergyFirst4 g
• Organic Fiber Delicious Citrus FlavorGarden of Life Dr. Formulated5 g
• Organic Fiber Natural Orange FlavorNuSyllium3 g
• Organic Fiber UnflavoredGarden of Life Dr. Formulated5 g
• Organic Fiber-ClearAdvanced Naturals · off the market5 g
• Organic Fit Chocolate FlavorGarden of Life8 g
• Organic Fit Vanilla FlavorGarden of Life8 g
• Organic Flavour Free Coconut OilHigher Nature · off the marketno amount
• Organic Flax Seed OilHigher Natureno amount

Where next?

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