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

• Organic Irish MossSprouts Farmers Market1 g
• Organic Juce Garden BerryTerra Kai4 g
• Organic Juice Cleanse OJC Daily Super Food Apple SunrisePurity Products3 g
• Organic Juice Cleanse OJC Daily Super Food Blueberry DetoxPurity Products4 g
• Organic Juice Cleanse OJC Daily Super Food Dark Chocolate SurprisePurity Products4 g
• Organic Juice Cleanse OJC Daily Super Food Red Berry SurprisePurity Products8 g
• Organic Juice Cleanse OJC plus Super Formula Cranberry CleansePurity Products7 g
• Organic Kelp PowderMicro Ingredients1.5 g
• Organic Lucuma PowderGroovy Beeno amount
• Organic Maca PowderMicro Ingredients1 g
• Organic Maca RootHerbal Secrets · off the marketno amount
• Organic Maca Root PowderAmazing Organicsno amount
• Organic Maca Root PowderHerbal Secrets · off the marketno amount
• Organic Maca Root PowderGroovy Bee0.4 g
• Organic Maca Root PowderSuperfoods By MRM Nutrition1 g
• Organic MatchaGreen Foods · off the market1 g
• Organic Matcha plus Beet JuiceOrganic Evolution · off the market1 g
• Organic Matcha Pure Green TeaOrganic Evolution · off the market1 g
• Organic MCT Oil Powder C8 + C10Sports Research3 g
• Organic MCT PowderNutiva · off the market3 g
• Organic MCT PowderGarden of Life Dr. Formulated Keto3 g
• Organic MCT Powder ChocolateNutiva · off the market3 g
• Organic MCT Powder MatchaNutiva3 g
• Organic MCT Protein Chocolate FlavoredNutiva2 g
• Organic MCT Protein Vanilla FlavoredNutiva1 g
• Organic Miracle Whey OriginalDr. Mercola · off the marketno amount
• Organic Miracle Whey Protein Powder ChocolateDr. Mercola · off the market5 g
• Organic Miracle Whey Protein Powder StrawberryDr. Mercola · off the market5 g
• Organic Miracle Whey Protein Powder VanillaDr. Mercola · off the market5 g
• Organic Moringa PowderSmart Organics1 g
• Organic Moringa PowderYerba Prima3 g
• Organic Moringa PowderSuperfoods By MRM Nutrition1 g
• Organic Moringa PowderHerb Affair1 g
• Organic Muscle Chocolate DesireMusclegen Performance Nutrition2 g
• Organic Mushroom Powder ChagaHealth Ranger Select · off the market0.5 g
• Organic Mushroom Powder Lion's ManeHealth Ranger Select0.9 g
• Organic Mushroom Powder MaitakeHealth Ranger Select0.9 g
• Organic Mushroom Powder ReishiHealth Ranger Select1 g
• Organic Mushroom Powder ShiitakeHealth Ranger Select0.7 g
• Organic Mushroom Powder Turkey TailHealth Ranger Select1 g
• Organic Natural Fiber UnflavoredNuSyllium3 g
• Organic Oatmilk Creamer UnflavoredOm Mushroom Superfoodno amount
• Organic Oatmilk Creamer VanillaOm Mushroom Superfoodno amount
• Organic Omega 3:6:9 Balance OilHigher Natureno amount
• Organic OrganiGreensOrganixx3 g
• Organic Pea ProteinNOW Sports1 g
• Organic Pea Protein Creamy ChocolateNOW Sports2 g
• Organic Pea Protein Isolate Powder 30 gBulkSupplements.com1 g
• Organic Pea Protein Natural ChocolateNOW Sports · off the market1 g
• Organic Pea Protein Natural UnflavoredNOW Sports · off the market1 g

Where next?

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