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

• Saw Palmetto & Pygeum with ZincSolaray1 g
• Saw Palmetto ClassicPlanetary Herbals1 g
• SchisandraPlanetary Herbals1 g
• Schisandra Adrenal ComplexPlanetary Herbals1 g
• Scoop Of GreensPurium Health Products1 g
• ScramHealthForce Detox · off the market2.4 g
• ScramHealthForce SuperFoods2 g
• Screen Time StaminaSource Naturals1 g
• Sea BuckthornSibu Beauty1 g
• Sea NourishmentOL Olympian Labs · off the marketno amount
• Sea Nourishment Cran-RaspberryOL Olympian Labsno amount
• Seabuckthorn FusionCalifornia Academy of Health1 g
• SecretagoguePrimeno amount
• Secretagogue Gold OrangeMHP Maximum Human Performanceno amount
• Secretagogue-One Lemon IceMHP Maximum Human Performanceno amount
• Secretagogue-One OrangeMHP Maximum Human Performanceno amount
• Secrets of the Psyllium Pure Plantago HusksTrader Darwin's9 g
• Secure CoffeeProCaps · off the market2 g
• Secure VanillaProCaps · off the market2 g
• Seeds Of Beauty Natural Pineapple FlavorFemiwell0.2 g
• Select CleanseMoss Nutrition · off the market5 g
• Select Greens Lemon FlavorMoss Nutrition · off the market2 g
• Select Greens UnflavoredMoss Nutrition2 g
• Select Meal DF ChocolateMoss Nutrition3 g
• Select Meal DF VanillaMoss Nutrition2 g
• Select Meal VanillaMoss Nutrition2 g
• Select Multi-Purpose Protein Unflavored Whey + Casein BlendPEScienceno amount
• Select Plant Protein Vegan Series Amazing Chocolate Peanut ButterPEScience2 g
• Select Plant Protein Vegan Series Amazing Cinnamon DelightPEScience1 g
• Select Plant Protein Vegan Series Amazing Mint ChocolatePEScience2 g
• Select Plant Protein Vegan Series Amazing Peanut Butter DelightPEScience1 g
• Select Plant Protein Vegan Series Amazing Pumpkin PiePEScience1 g
• Select Plant Protein Vegan Series Amazing Vanilla IndulgencePEScience1 g
• Select Plant Protein Vegan Series Indulgent Chocolate BlissPEScience2 g
• Select Protein Amazing Cake PopPEScienceno amount
• Select Protein Amazing Chocolate TrufflePEScience1 g
• Select Protein Amazing Cookies and CreamPEScienceno amount
• Select Protein Amazing Gourmet VanillaPEScience1 g
• Select Protein Amazing Peanut Butter CookiePEScienceno amount
• Select Protein Amazing Pumpkin PiePEScienceno amount
• Select Protein Amazing SnickerdoodlePEScience1 g
• Select Protein Amazing Strawberry CheesecakePEScienceno amount
• Select Protein Cafe Series Caramel MacchiatoPEScienceno amount
• Select Protein Cafe Series Iced MochaPEScienceno amount
• Select Protein Cafe Series Vanilla Sweet CreamPEScienceno amount
• Select Protein Chocolate Mint CookiePEScienceno amount
• Select Protein Chocolate Peanut Butter CupPEScience1 g
• Select Protein Frosted Chocolate CupcakePEScience1 g
• Select Smart Mass Amazing Gourmet ChocolatePEScience3 g
• Senna Leaf PowderZ Natural Foodsno amount

Where next?

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