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

• Organic Psyllium Husk Powder OrangeViva Naturals5 g
• Organic Psyllium Husks CapsYerba Prima4.4 g
• Organic Psyllium Whole HusksYerba Prima9 g
• Organic Pumpkin Seed ProteinHealth Ranger Select3 g
• Organic Pumpkin Seed ProteinGroovy Bee2.4 g
• Organic Pumpkin Seed Protein UnflavoredNOW Sports1 g
• Organic QuinoaHealth Ranger Select1.9 g
• Organic Raw Cacao NibsHerbal Secrets · off the market6 g
• Organic Raw Cashews Whole & PiecesHealth Ranger Select0.9 g
• Organic Recovery NectarNatural Force2 g
• Organic Red Juice Fruit Punch FlavorOpportuniteas2 g
• Organic Red SupremefoodDivine Health1 g
• Organic Red Supremefood Berry FlavorDivine Health · off the market2 g
• Organic Reds + Probiotics Delicious Mixed Berry FlavorHealthy Delights Naturals5 g
• Organic Replenisher WatermelonOrganic Muscle · off the marketno amount
• Organic Resistant Starch Complex UnflavoredDr. Mercola2 g
• Organic Rice Bran FiberHealth Ranger Select1.3 g
• Organic Rice Bran FiberGroovy Bee1.3 g
• Organic Rice ProteinBulkSupplements.com1 g
• Organic Rice Protein Powder 30 gBulkSupplements.comno amount
• Organic Rice Protein Powder ChocolateNutriBiotic1 g
• Organic Rice Protein Powder PlainNutriBiotic1 g
• Organic Rice Protein VanillaNutriBiotic1 g
• Organic Sacha Inchi PowderSuperfoods By MRM Nutrition1 g
• Organic Select Pea VanillaMoss Nutrition1 g
• Organic Seven Treasures Mushroom PowderHealth Ranger Select0.3 g
• Organic Shiitake Mushroom PowderHealth Ranger Select · off the market1.1 g
• Organic Soy Protein Powder Natural Chocolate FlavorVitamer Laboratories3 g
• Organic Soy Protein Powder Natural Vanilla FlavorVitamer Laboratories3 g
• Organic Spinach 4 g UnflavoredNutricost1 g
• Organic Spinach PowderSunny Green2 g
• Organic Spirulina PowderSmart Organics0.5 g
• Organic Sprouted Flax SeedsHigher Nature26.2 g as transcribed, likely a slip
• Organic Sprouted Radiance Blend ChocolateHealth Ranger Select · off the market2 g
• Organic Stevia Extract PowderGroovy Beeno amount
• Organic Stevia Powder 4 gBulkSupplements.comno amount
• Organic Sun EleutheroSun Chlorella Corp.2 g
• Organic Sun EleutheroSun Chlorella2 g
• Organic Super C Berry BlendHealth Ranger Select3 g
• Organic Super Defense Food Natural Fruit FlavorMichael's Naturopathic Programs · off the market1 g
• Organic Super Defense Food Natural Fruit FlavorMNP Michael's Naturopathic Programs1 g
• Organic Super GreensAncient Nutrition1 g
• Organic Super Greens + CollagenAncient Nutrition2 g
• Organic Super Greens Alkalize & DetoxAncient Nutrition2 g
• Organic Super Greens Berry FlavorAncient Nutrition1 g
• Organic Super Greens Dragonfruit FlavorAncient Nutrition1 g
• Organic Super Greens Mint FlavorAncient Nutrition1 g
• Organic Super Greens Watermelon FlavorAncient Nutrition1 g
• Organic SuperfoodPure Synergy1 g
• Organic Superfood Energy Shake VanillaKuli Kuli2 g

Where next?

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