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Fiber · Supplement ingredient

Fructo-Oligosaccharides (FOS)

Fructo-Oligosaccharides (FOS) is listed on 678 U.S. supplement product labels in the NIH DSLD, #280 of 4,614 by label frequency.

678
Products
#280 of 4,614
By frequency

How common is Fructo-Oligosaccharides (FOS)?

Number of supplement labels listing Fructo-Oligosaccharides (FOS) vs nearby fiber ingredients

products
Source NIH Dietary Supplement Label Database (DSLD) As of 2026

Products containing Fructo-Oligosaccharides (FOS)

100% Egg Protein Powder Chocolate
BioChem Sports
25 ingredients · Other Combinations
On Market
100% Egg Protein Powder Vanilla
BioChem Sports
22 ingredients · Other Combinations
On Market
100% Hemp & Whey Powder Vanilla
BioChem Sports
32 ingredients · Botanical with Nutrients
On Market
50 Billion CFU Probiotics
HealthyBiom
18 ingredients · Non-Nutrient/Non-Botanical
On Market
50 Billion CFU Probiotics
HealthyBiom
18 ingredients · Non-Nutrient/Non-Botanical
On Market
50 Billion CFU Probiotics
HealthyBiom
19 ingredients · Non-Nutrient/Non-Botanical
On Market
65 Billion CFU Protiotics
HealthyBiom
18 ingredients · Non-Nutrient/Non-Botanical
On Market
80 Billion CFU Probiotic
Built By Nature
10 ingredients · Other Combinations
On Market
ABC Acidophilus, Bifidus And Bulgaricus Complex
Systemic Formulas Bio Nutriment
11 ingredients · Other Combinations
On Market
Accell Therapeutic
Systemic Formulas
70 ingredients · Other Combinations
On Market
AcidophiKidz Berry Flavor
Natures Plus Animal Parade
27 ingredients · Other Combinations
On Market
Acidophilus/Bifidobacter/FOS
Vital Nutrients
6 ingredients · Other Combinations
On Market
Active Chewable Probiotics Natural Grape Flavor
CATALO
29 ingredients · Other Combinations
On Market
Adult 50+ Probiotics 25 Billion CFU
HealthyBiom
13 ingredients · Non-Nutrient/Non-Botanical
On Market
Adult 50+ Probiotics 25 Billion CFU
HealthyBiom
13 ingredients · Non-Nutrient/Non-Botanical
On Market
Adult Probiotics 15 Billion CFU
HealthyBiom
10 ingredients · Non-Nutrient/Non-Botanical
On Market
Adult Probiotics 15 Billion CFU
HealthyBiom
10 ingredients · Non-Nutrient/Non-Botanical
On Market
Adult Probiotics With DDS-1
Multi Flora Probiotics
11 ingredients · Non-Nutrient/Non-Botanical
On Market
Adult Ultra Probiotics With DDS-1
Multi Flora Probiotics
14 ingredients · Non-Nutrient/Non-Botanical
On Market
Adult's Chewable Multi-Vitamin & Mineral Exotic Red Berry Flavor
NaturesPlus
83 ingredients · Other Combinations
On Market
Advanced Probiotic 40 Billion CFU
eXplicit Supplements
10 ingredients · Other Combinations
On Market
Alive! Liquid Fiber With Prebiotics Pomegranate-Berry Flavor
Nature's Way
31 ingredients · Botanical with Nutrients
On Market
Alive! Liquid Fiber With Prebiotics Pomegrante-Berry Flavored
Nature's Way
42 ingredients · Botanical with Nutrients
On Market
Alive! Liquid Fiber With Probiotics Citrus Flavor
Nature's Way
32 ingredients · Botanical with Nutrients
On Market
Allergy Health
Emerald Labs
28 ingredients · Other Combinations
On Market
Aloe 10,000 & Probiotics
NOW
17 ingredients · Other Combinations
On Market
Aloe Herbal Stomach Formula
Lily of the Desert
27 ingredients · Botanical
On Market
Baby & Me 2 Prenatal Probiotic + Prebiotic
MegaFood
11 ingredients · Other Combinations
On Market
Baby BioFlora
BioCare
11 ingredients · Other Combinations
On Market
Baby Infantis Powder
BioCare
4 ingredients · Other Combinations
On Market
Berry Dophilus Chewables
NOW Kids
27 ingredients · Non-Nutrient/Non-Botanical
On Market
Bifido-Complex
Progressive Professional from Progressive Laboratories
9 ingredients · Non-Nutrient/Non-Botanical
On Market
BioAcidophilus
BioCare
10 ingredients · Other Combinations
On Market
BioAcidophilus
BioCare
10 ingredients · Other Combinations
On Market
BioAcidophilus Forte
BioCare
11 ingredients · Other Combinations
On Market
BioAcidophilus Forte
BioCare
11 ingredients · Other Combinations
On Market
BioAcidophilus Forte
BioCare
11 ingredients · Other Combinations
On Market
BioAcidophilus Forte
BioCare
11 ingredients · Other Combinations
On Market
BioAcidophilus Forte Plus
BioCare
13 ingredients · Other Combinations
On Market
BioAcidophilus Forte Plus
BioCare
13 ingredients · Other Combinations
On Market
BioAcidophilus Powder
BioCare
9 ingredients · Other Combinations
On Market
BioDophilus Caps
Biotics Research Corporation
8 ingredients · Non-Nutrient/Non-Botanical
On Market
BioDophilus25
Advanced Nutrition by Zahler
16 ingredients · Other Combinations
On Market
BioDophilus60
Advanced Nutrition by Zahler
16 ingredients · Other Combinations
On Market
BiomeMD for Women
1MD Nutrition
25 ingredients · Other Combinations
On Market
Biothin Probiotic 10 Billion CFU
Dr. Mercola
7 ingredients · Non-Nutrient/Non-Botanical
On Market
Biothin Probiotic 10 Billion CFU
Dr. Mercola
7 ingredients · Non-Nutrient/Non-Botanical
On Market
Blood Pressure Health
Emerald Labs
33 ingredients · Other Combinations
On Market
Blood Sugar Health
Emerald Labs
29 ingredients · Other Combinations
On Market
Broad Spectrum Prebiotic Unflavored
InnovixLabs
18 ingredients · Other Combinations
On Market

Nearby Ingredients in Fiber

Other ingredients in the Fiber category cataloged in the NIH DSLD. Useful for comparing how common different nutrients are across the US supplement market.

Compare Fructo-Oligosaccharides (FOS) vs Cellulose →

Nationwide ingredients with similar DSLD presence

Two peer sets for Fructo-Oligosaccharides (FOS): closest on total DSLD label listings (678 here) and closest on distinct brands that list it (212 here). Peers exclude the same DSLD category, and rows stay link-disjoint so each axis is a distinct neighborhood.

Similar label frequency

Nearest other ingredients by distinct DSLD product labels (floored at ≥50), outside this category.

Similar brand breadth

Nearest other ingredients by distinct brands listing them (floored at ≥100 brands), distinct from the label-frequency row.

Frequently asked about Fructo-Oligosaccharides (FOS)

How many supplement products contain Fructo-Oligosaccharides (FOS)?
678 supplement product labels in the NIH DSLD currently lists Fructo-Oligosaccharides (FOS) as an ingredient. By label frequency it ranks #280 of 4,614 among ingredients PlainVitamins ranks (same sort as /rankings/most-common-ingredients). Browse them below.

Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD). Regulatory reference: Source: Dietary Supplement Health and Education Act (DSHEA), 1994, 21 U.S.C. § 321(ff).

Disclaimer, Not Medical Advice: Information on this page is based on manufacturer-declared label data and is provided for educational and reference purposes only. It does not constitute medical, nutritional, or health advice. Consult a licensed healthcare provider before starting, stopping, or combining any supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. Ingredient figures are computed directly from the NIH DSLD, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.