PlainVitamins

fiber

Fructo-Oligosaccharides supplements

Half of the 526 fructo-oligosaccharides supplements in the NIH label database that print an amount list 185 mg or less per serving; the middle half list 75 mg to 500 mg (DSLD version 9.4.0, January 2026). The 25 products whose only supplement ingredient is fructo-oligosaccharides list a median of 2,500 mg.

Products listing it
1,076526 print an amount; 549 list it inside a blend without an amount
Median per serving
185 mgmiddle half 75 mg to 500 mg

How much fructo-oligosaccharides do supplements contain?

The median product lists 185 mg per serving. One in ten lists 25 mg or less, one in ten 1,800 mg or more. The amount printed most often is 100 mg (74 products).

Products by amount of fructo-oligosaccharides per serving

526 products, log scale; extreme 0.2% at each end left out of the drawing.

Fructo-Oligosaccharides: products by amount per serving10 mg100 mg1,000 mg
Fructo-Oligosaccharides: products by amount per serving10 mg30 mg100 mg300 mg1,000 mg
Fructo-Oligosaccharides: products by amount per serving10 mg30 mg100 mg300 mg1,000 mg3,000 mg
Fructo-Oligosaccharides: products by amount per serving10 mg30 mg100 mg300 mg1,000 mg3,000 mg
Fructo-Oligosaccharides: products by amount per serving10 mg30 mg100 mg300 mg1,000 mg3,000 mg
The amounts printed most often
Amount per servingProductsFor example
100 mg74 Super 10 Billion CFUs Probiotic Complex (GNC Probiotics); Buddy Bear Probiotic (Renew Life); Ultra Mega Duo Dophilus (Earth Wise Vitamins & Supplements)
200 mg41 Cal'dophilus With FOS (Natural Factors); Protec Acidophilus With FOS (Natural Factors); Premium Acidophilus (OL Olympian Labs)
25 mg36 Probiotics (New Sun); Nondairy Probiotic 50+ (DaVinci Laboratories Of Vermont); Digestive Bliss Probiotic (Nature's Secret)
50 mg35 MAX Acidophilus (Meijer Naturals); Clinical Digestion (Natural Clinician); Digesta Guard Forte 10 + FOS Capsules (Perque)
1,000 mg30 Alive! Liquid Fiber With Probiotics Citrus Flavor (Nature's Way); Alive! Liquid Fiber With Prebiotics Pomegranate-Berry Flavor (Nature's Way); Phyto Greens (Genestra Brands)
500 mg28 Colon Care (GNC Preventive Nutrition); Super Greens Power (MET-Rx); Nutra-Betic (Windmill Consumer Products)
150 mg22 L. Acidophilus Complex (VQ Verified Quality); Colon Support (Vitamer Laboratories); Probiotic 750 Million CFU (ETST Earth Science Tech)
250 mg15 Extra Strength Probiotic & Acidophilus Formula (Windmill Rx Premium Vitamins); Joint Formula French Vanilla Flavor (Greens Today); Probiotic (Genesis Pure)
300 mg14 Gentle Natural Cleanse (VitaCeutical Labs); Probiotic Extra Strength (Metabolic Maintenance); Ultimate 10 Probiotic 13 Billion (The Vitamin Shoppe)
2,000 mg13 Alive! Liquid Fiber With Prebiotics Pomegrante-Berry Flavored (Nature's Way); Extra Care Ultimate Flora Probiotic 200 Billion (Renew Life); Alive! Liquid Fiber with Prebiotics Tropical Citrus Flavored (Nature's Way)

Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).

Which products list the most fructo-oligosaccharides?

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).

Have the amounts changed over the years?

Products whose current label entered DSLD in 2012 list a median of 200 mg; those entered in 2025, 225 mg.

Median fructo-oligosaccharides per serving by the year the label entered DSLD (years with 20+ products)
YearProductsMedian per serving
201231200 mg
201329225 mg
201424175 mg
201525300 mg
201625350 mg
201739102 mg
201825200 mg
201951100 mg
202055250 mg
202135200 mg
202250117 mg
202338125 mg
202448150 mg
202540225 mg

Source: DSLD label entry dates and amounts, current labels.

In which products and brands?

Products listing fructo-oligosaccharides by DSLD product type

Fructo-Oligosaccharides by product typeOther Combinations432Non-Nutrient/Non-Botanical35Botanical with Nutrients29Fiber and Other Nutrients27Botanical3
Fructo-Oligosaccharides by product typeOther Combinations432Non-Nutrient/Non-Botanical35Botanical with Nutrients29Fiber and Other Nutrients27Botanical3
Fructo-Oligosaccharides by product typeOther Combinations432Non-Nutrient/Non-Botanical35Botanical with Nutrients29Fiber and Other Nutrients27Botanical3
Fructo-Oligosaccharides by product typeOther Combinations432Non-Nutrient/Non-Botanical35Botanical with Nutrients29Fiber and Other Nutrients27Botanical3
Fructo-Oligosaccharides by product typeOther Combinations432Non-Nutrient/Non-Botanical35Botanical with Nutrients29Fiber and Other Nutrients27Botanical3

Brands listing it most: Nature's Way (21), Vibrant Health (20), Swanson (16), Hyperbiotics (13), BioCare (13), Renew Life (13), GNC (12), Natural Factors (12), Swanson Probiotics (11), GNC Probiotic Complex (9).

Every product listing fructo-oligosaccharides

1,076 products, A to Z by name (page 19 of 22), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

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