Skip to main content
PlainVitamins

Fiber · Supplement ingredient

Fructooligosaccharides (FOS)

Fructooligosaccharides (FOS) is listed on 56 U.S. supplement product labels in the NIH DSLD, #1,020 of 4,614 by label frequency.

56
Products
#1,020 of 4,614
By frequency
Verify with NIH DSLD → · FDA Daily Value reference → · Page 1 of 2

How common is Fructooligosaccharides (FOS)?

Number of supplement labels listing Fructooligosaccharides (FOS) vs nearby fiber ingredients

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

Products containing Fructooligosaccharides (FOS)

Alive! Liquid Fiber with Prebiotics Tropical Citrus Flavored
Nature's Way
44 ingredients · Botanical with Nutrients
On Market
Chewable Probiotic Natural Grape Flavor
American Health
13 ingredients · Non-Nutrient/Non-Botanical
On Market
Chewable Probiotic Natural Grape Flavor
American Health
13 ingredients · Non-Nutrient/Non-Botanical
On Market
Chewable Probiotic Natural Strawberry Flavor
American Health
13 ingredients · Non-Nutrient/Non-Botanical
On Market
Children's Probiotics 2 Billion CFU Berry Flavor
LuckyVitamin
27 ingredients · Non-Nutrient/Non-Botanical
On Market
Clear Nails Plus
Justified Laboratories
13 ingredients · Non-Nutrient/Non-Botanical
On Market
Clear Nails Plus
Justified Laboratories
13 ingredients · Other Combinations
On Market
Dynamic Biotics
Stonehenge Health
26 ingredients · Other Combinations
On Market
Dynamic Biotics for Women
Stonehenge Health
45 ingredients · Other Combinations
On Market
Fiber Gummies
Garden Greens
17 ingredients · Botanical with Nutrients
On Market
Fungus Clear 1.5 Billion CFU
Justified Laboratories
13 ingredients · Non-Nutrient/Non-Botanical
On Market
Fungus Defend 1.5 Billion CFU
Justified Laboratories
13 ingredients · Other Combinations
On Market
Glucosamine Chondroitin MSM with Collagen Ultra Rx-Joint Liquid Honey Lemon Flavor
NaturesPlus Advanced Therapeutics
20 ingredients · Other Combinations
On Market
Green Vibrance
Vibrant Health
100 ingredients · Other Combinations
On Market
Green Vibrance
Vibrant Health
103 ingredients · Other Combinations
On Market
Greens Blend Antioxidant Sweet Berry
Amazing Grass
72 ingredients · Other Combinations
On Market
High Potency D3 10,000 IU Cholecalciferol
Protocol For Life Balance
4 ingredients · Vitamin
On Market
Immune Balance 365 Natural Mango Flavor
Liquid Health
25 ingredients · Botanical with Nutrients
On Market
Kids' Sambucus Black Elderberry Chewables
Nature's Answer
25 ingredients · Botanical with Nutrients
On Market
Kids' Sambucus Chewables
Nature's Answer
25 ingredients · Botanical with Nutrients
On Market
Kyo-Green Greens Blend Powdered Drink Mix
Kyo-Green
12 ingredients · Botanical with Nutrients
On Market
Kyo-Green Harvest Blend Powdered Drink Mix
Kyo-Green
34 ingredients · Botanical with Nutrients
On Market
Lactobacillus rhamnosus with FOS
Swanson
6 ingredients · Other Combinations
On Market
Maximum Vibrance Chocolate Chunk
Vibrant Health
157 ingredients · Other Combinations
On Market
Olive Leaf + FOS
NOW
6 ingredients · Botanical with Nutrients
On Market
Prebiotic Colon Care Capsules
Yerba Prima
27 ingredients · Botanical with Nutrients
On Market
Prebiotic Fiber Gummies
Promend
17 ingredients · Botanical with Nutrients
On Market
Primadophilus Reuteri Probiotic Capsules
Nature's Way
10 ingredients · Non-Nutrient/Non-Botanical
On Market
Primadophilus Reuteri Probiotic Capsules
Nature's Way
10 ingredients · Other Combinations
On Market
Primadophilus Reuteri Probiotic Powder
Nature's Way
11 ingredients · Non-Nutrient/Non-Botanical
On Market
PRO-Gut Integrity with Epicor
Hyperbiotics
27 ingredients · Other Combinations
On Market
Probiotic 10 Strains 100 Billion CFU
LuckyVitamin
16 ingredients · Non-Nutrient/Non-Botanical
On Market
Probiotic 10 Strains 25 Billion
LuckyVitamin
16 ingredients · Non-Nutrient/Non-Botanical
On Market
Probiotic 10 Strains 50 Billion CFU
LuckyVitamin
16 ingredients · Non-Nutrient/Non-Botanical
On Market
Probiotic KidChewables Natural Grape Flavor
American Health
18 ingredients · Non-Nutrient/Non-Botanical
On Market
Probiotic KidChewables Natural Strawberry Vanilla Flavor
American Health
17 ingredients · Non-Nutrient/Non-Botanical
On Market
Solstic Immune Strawberry Lemonade Flavor
Nature's Sunshine
24 ingredients · Botanical with Nutrients
On Market
Solstic Twenty-Four Natural Raspberry Lemonade Flavor
Nature's Sunshine
32 ingredients · Other Combinations
On Market
D3 10,000 IU Cholecalciferol
Protocol For Life Balance
4 ingredients · Vitamin
Off Market
D3 10,000 IU Cholecalciferol High Potency
Protocol For Life Balance
4 ingredients · Vitamin
Off Market
Dynamic Biotics
Stonehenge Health
24 ingredients · Other Combinations
Off Market
Primadophilus Children
Nature's Way
14 ingredients · Other Combinations
Off Market
Primadophilus Intensive
Nature's Way
8 ingredients · Other Combinations
Off Market
Primadophilus Optima
Nature's Way
6 ingredients · Other Combinations
Off Market
Primadophilus Optima
Nature's Way
6 ingredients · Other Combinations
Off Market
Primadophilus Probifia
Nature's Way
7 ingredients · Other Combinations
Off Market
Primadophilus Reuteri
Nature's Way
6 ingredients · Other Combinations
Off Market
Primadophilus Reuteri
Nature's Way
10 ingredients · Non-Nutrient/Non-Botanical
Off Market
Probiotic 1150
MaritzMayer Laboratories
14 ingredients · Non-Nutrient/Non-Botanical
Off Market
Probiotic Ultra Blend Premium
Natural Goal
9 ingredients · Non-Nutrient/Non-Botanical
Off 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 Fructooligosaccharides (FOS) vs Cellulose →

Cellulose
38,497 products · Fiber
Fiber (unspecified)
7,667 products · Fiber
Pectin
3,219 products · Fiber
Guar
1,988 products · Fiber
Rice Bran
1,458 products · Fiber

Nationwide ingredients with similar DSLD presence

Two peer sets for Fructooligosaccharides (FOS): closest on total DSLD label listings (56 here) and closest on distinct brands that list it (22 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.

Frequently asked about Fructooligosaccharides (FOS)

How many supplement products contain Fructooligosaccharides (FOS)? ▼
56 supplement product labels in the NIH DSLD currently lists Fructooligosaccharides (FOS) as an ingredient. By label frequency it ranks #1,020 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.

Read our methodology , how this data is sourced, computed, and verified.

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.