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

• Organic Flax SeedsVitamin World · off the market4 g
• Organic Flax SeedsHerbal Secrets · off the market4 g
• Organic Forti-FlaxBarlean's4 g
• Organic Freeze-Dried Beet Juice PowderHealth Ranger Selectno amount
• Organic Freeze-Dried Beet Juice PowderGroovy Bee1.2 g
• Organic Fruit & Acacia Fiber Delicious Fruit FlavorRenew Life Skinny Gut5 g
• Organic Garden Harvest Blend PowderGroovy Bee1.3 g
• Organic GojiTahiti Trader · off the marketno amount
• Organic Grass-Fed Whey Cacao BeanNatural Force1 g
• Organic Grass-Feed Whey Cacao BeanNatural Force1 g
• Organic Green Banana PowderSuperfoods By MRM Nutrition1 g
• Organic GreensSoTru · off the market3 g
• Organic GreensThe Natural Citizen · off the market3 g
• Organic GreensBluebonnet Super Earth2 g
• Organic GreensAntler Farms1.1 g
• Organic GreensPower Blendz1 g
• Organic GreensPurely Inspired · off the market1 g
• Organic Greens +Probiotics Delicious Mixed Berry FlavorHealthy Delights Naturals6 g
• Organic Greens BoosterShaklee1 g
• Organic Greens Formula Watermelon FlavorPuritan's Pride2 g
• Organic Greens Mixed BerryNutricost Organic3 g
• Organic Greens Mixed BerryBucked Up4 g
• Organic Greens Natural Chocolate FlavorSpring Valley6 g
• Organic Greens Original FlavorSpring Valley7 g
• Organic Greens UnflavoredNutricost3 g
• Organic Greens UnflavoredPurely Inspired1 g
• Organic Greens+ Superfood PowderGroovy Bee0.4 g
• Organic Ground FlaxseedsBIOVEA4 g
• Organic Ground FlaxseedsHerbal Secrets · off the market1 g
• Organic Hemp JuvenateHealth Ranger Select4.1 g
• Organic Hemp OilManitoba Harvestno amount
• Organic Hemp Powder Protein & FiberNature's Way11 g
• Organic Hemp Pro FiberManitoba Harvest · off the market13 g
• Organic Hemp Protein Dark ChocolateManitoba Harvest · off the market10 g
• Organic Hemp Protein PowderHealth Ranger's · off the market4.1 g
• Organic Hemp Protein Powder Peak ProteinNutiva6 g
• Organic Hemp Protein VanillaManitoba Harvest · off the market10 g
• Organic Hemp Seed ProteinBulkSupplements.com · off the market5 g
• Organic Hemp Seed Protein Powder 30 gBulkSupplements.com2 g
• Organic HibiscusGaia Herbs · off the market1 g
• Organic Hibiscus Herbal TeaGaia Herbs1 g
• Organic High Lignan Flax OilThe Vitamin Shoppe · off the marketno amount
• Organic Hulled Hemp SeedGroovy Bee1 g
• Organic Immune FormulaEssential Living Foods · off the market1 g
• Organic Instant Flax Milk PowderGroovy Bee2 g
• Organic InulinHealthy Kidney6 g
• Organic Inulin PowderMicro Ingredients2.3 g
• Organic Inulin PowderOpportuniteas2 g
• Organic Inulin Powder 7.5 g UnflavoredNutricost Organic7.5 g
• Organic Inulin Prebiotic PowderLuckyVitamin2.5 g

Where next?

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