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

• Organic Pea Protein Natural VanillaNOW Sports1 g
• Organic Pea Protein PowderHealth Ranger Select0.2 g
• Organic Pea Protein UnflavoredHerbal Secrets · off the market1 g
• Organic Plant Protein Chocolate FlavorVitamer Laboratories2 g
• Organic Plant Protein Chocolate FlavorBluebonnet3.5 g
• Organic Plant Protein Chocolate MintNatural Force3 g
• Organic Plant Protein Creamy ChocolateNOW Sports2 g
• Organic Plant Protein Creamy VanillaNOW Sports2 g
• Organic Plant Protein Natural UnflavoredNOW Sports2 g
• Organic Plant Protein UnflavoredNatural Force2 g
• Organic Plant Protein Vanilla ChaiNatural Force2 g
• Organic Plant Protein Vanilla FlavorBluebonnet3.5 g
• Organic Plant-Based Energy + Focus BlackberryGarden of Life Sport · off the market2 g
• Organic Plant-Based Energy + Focus Blackberry CherryGarden of Life Sport2 g
• Organic Plant-Based Energy + Focus Blackberry Cherry FlavorGarden of Life Sport2 g
• Organic Plant-Based Energy + Focus Blackberry FlavorGarden of Life Sport2 g
• Organic Plant-Based Recovery Blackberry LemonadeGarden of Life Sport · off the market1 g
• Organic Plant-Based Recovery Blackberry Lemonade FlavorGarden of Life Sport1 g
• Organic Plant-Protein Powder Chocolate22 Days Nutrition3 g
• Organic Plant-Protein Powder Natural22 Days Nutrition2 g
• Organic Plant-Protein Powder Strawberry22 Days Nutrition2 g
• Organic Plant-Protein Powder Vanilla22 Days Nutrition2 g
• Organic Post-Workout Peach TeaMRM Nutrition · off the market2 g
• Organic Post-Workout Peach Tea FlavoredMRM Nutrition2 g
• Organic Pre-Workout Apple GingerNatural Force1 g
• Organic Pre-Workout Black CherryNatural Force1 g
• Organic Pre-Workout ChocolateNatural Force2 g
• Organic Pre-Workout Island FusionMRM Nutrition · off the market4 g
• Organic Pre-Workout Island Fusion FlavoredMRM Nutrition4 g
• Organic Pre-Workout Lemon BerryOrganic Muscle · off the market1 g
• Organic Pre-Workout Passionfruit GuavaOrganic Muscle1 g
• Organic Pre-Workout Strawberry MangoOrganic Muscle1 g
• Organic Preggie Pop DropsThree Lolliesno amount
• Organic Premium Matcha Green Tea PowderHealth Ranger Select0.34 g
• Organic Protein & Kale Smooth Chocolate FlavoredAmazing Grass2 g
• Organic Protein Chocolate CocoaNature's Food · off the market4 g
• Organic Protein Decadent ChocolatePurely Inspired5 g
• Organic Protein French VanillaPurely Inspired5 g
• Organic Protein Peppermint MochaPurely Inspired4 g
• Organic Protein Smoothie Dark ChocolatePurity Products1 g
• Organic Protein Smoothie French VanillaPurity Products1 g
• Organic Protein UnflavoredThe Natural Citizen · off the market2 g
• Organic Protein Vanilla BeanNature's Food · off the market3 g
• Organic Protein Vegan Protein Shake ChocolateSoTru · off the market2 g
• Organic Protein Vegan Protein Shake VanillaSoTru · off the market1 g
• Organic Psyllium FiberKonsyl8 g
• Organic Psyllium FiberOrganic India2.2 g
• Organic Psyllium Husk PowderMicro Ingredients4 g
• Organic Psyllium Husk PowderViva Naturals4 g
• Organic Psyllium Husk PowderMetabolic Maintenance4.7 g

Where next?

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