FOS Fructo-Oligosaccharides Ingredients & Drug Interactions
What is this page for?
First and foremost: checking FOS Fructo-Oligosaccharides against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
FOS Fructo-Oligosaccharides is a dietary supplement by Higher Nature with 1 active ingredient. Its ingredients are commonly taken for digestive and gut health, prebiotic to support good bacteria, constipation relief.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of FOS Fructo-Oligosaccharides by Higher Nature
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This powder contains one active ingredient: fructo-oligosaccharides (FOS), a type of carbohydrate that acts as a prebiotic — it's meant to feed the beneficial bacteria in your gut. The product also contains fructo-oligosaccharides as an inactive ingredient.
Does it work?
Not established
The evidence for FOS isn't yet established in our data. We hold insufficient reliable evidence to rate whether it works for osteoporosis, constipation, diabetes, traveler's diarrhea, or high cholesterol.
That doesn't mean it doesn't work — it means rigorous trials haven't settled the question yet.
How safe is it?
Well-documented data
FOS is generally well tolerated in the amounts you'd get from food. At supplement doses, though, the safety data is thin, so talk with your doctor before you start.
The main side effects are gastrointestinal: abdominal pain, bloating, flatulence, and constipation. Interestingly, a review of eight small studies found that FOS at doses between 2.5 and 15 grams daily for up to 8 weeks didn't increase these symptoms more than a placebo did — but individual responses vary, and higher doses are more likely to cause gas and bloating.
Meds to double-check
No known interactions
No interactions are documented in our data for the ingredients we could check in this product.
The bottom line
Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. No medication interactions are currently documented, and safety information is well characterized.
FOS is a gut-health supplement with minimal checked drug interactions and a side-effect profile centered on digestive gas and bloating. If you're curious about prebiotic fiber but have questions about whether it fits your health picture, talk it through with your doctor or pharmacist before you add it.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jan 23, 2015.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about FOS Fructo-Oligosaccharides, straight from the product label.
| Brand | Higher Nature |
|---|---|
| Barcode (UPC) | 5031013101069 |
| Net contents | 200 Gram(s) |
| Market status | On market |
| Date entered into DSLD | Jan 23, 2015 |
| DSLD ID | 41658 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Powder |
| Dietary claims / uses | All Other |
| Intended target group(s) | Children 4 or More Years of Age, Vegan, Vegetarian, Adult (18 - 50 Years), No Allergies, Gluten Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for FOS Fructo-Oligosaccharides by Higher Nature, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Fructo-Oligosaccharides | 3 Gram(s) | -- |
Other ingredients: Fructo-Oligosaccharides
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formulation
DOES NOT CONTAIN: salt, starch, soya, wheat, gluten, maize, corn, yeast, lactose, dairy products, artificial preservatives, colours or flavourings.
Suitable for vegetarians and vegans.
VEGETARIAN
General Statements
This product is not tested on animals.
Charitable organisations policy: supplements regularly donated
food for friendly bacteria
powder
- Food for friendly bacteria.
Food supplements should not be used as a substitute for a varied and balanced diet and healthy lifestyle.
This bottle has a UV filter.
Seals/Symbols
Jar {Recycle} 1 PET Lid {Recycle} 5 PP
Formula
Hypo-allergenic formula.
FDA Statement of Identity
FOOD SUPPLEMENT
General
FOS200 106 FOS-035-01
Suggested/Recommended/Usage/Directions
DIRECTIONS: Sprinkle 1/2 level teaspoon a day onto cereal or fruit, or stir into juice, building gradually to 2-3 level teaspoons a day (children over 5 years, 1/4 level teaspoon a day, building gradually to 1 level teaspoon a day), or as your health professional advises. Do not exceed recommended daily intake. Can also be used for baking and to sweeten hot drinks, or be used as a healthy alternative to sugar and sweeteners
Storage
Do not refrigerate.
Ensure lid is tight and store in a cool, dry, steam-free environment as damp conditions can affect the product quality.
Precautions
Keep out of reach of children.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
FOS Fructo-Oligosaccharides by Higher Nature label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in FOS Fructo-Oligosaccharides by Higher Nature
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size0.25 Level Teaspoon(s) Dosage formPowder Amounts shown are per serving.
Fructo-Oligosaccharides
No knowninteractions
Fructo-oligosaccharides (FOS) are a type of soluble fiber that acts as a prebiotic, meaning they feed the helpful bacteria in your gut. They are gener...
Fructo-Oligosaccharides monograph & interactionsOther (inactive) ingredients: Fructo-Oligosaccharides. These complete the product’s ingredient list but are not active constituents.
FOS Fructo-Oligosaccharides by Higher Nature Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in FOS Fructo-Oligosaccharides. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for FOS Fructo-Oligosaccharides, from the product label.
Higher Nature
See all Higher Nature products- Name
- Higher Nature
- City
- Burwash Common
- State
- East Sussex
- ZipCode
- TN19 7LX
- Web Address
- www.highernature.com
FOS Fructo-Oligosaccharides by Higher Nature: Common Questions
Does FOS Fructo-Oligosaccharides by Higher Nature interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Will FOS give me gas and bloating?
Is FOS safe during pregnancy or while breastfeeding?
Does FOS actually work for constipation or cholesterol?
What exactly is FOS and what's it supposed to do?
Are there any fillers or other ingredients in this powder?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if FOS Fructo-Oligosaccharides is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind FOS Fructo-Oligosaccharides’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
FOS Fructo-Oligosaccharides's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 6 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Fructo-oligosaccharides (fos) 6 references
- Briet F, et al. Symptomatic response to varying levels of fructo-oligosaccharides consumed occasionally or regularly. Eur J Clin Nutr 1995;49:501-7.
- Bouhnik Y, Vahedi K, Achour L, et al. Short-chain fructo-oligosaccharide administration dose-dependently increases fecal bifidobacteria in healthy humans. J Nutr 1999;129:113-6. PubMed
- Cummings JH, Macfarlane GT, Englyst HN. Prebiotic digestion and fermentation. Am J Clin Nutr 2001;73:415S-420S. PubMed
- Souza DDS, Tahan S, Weber TK, Araujo-Filho HB, de Morais MB. Randomized, double-blind, placebo-controlled parallel clinical trial assessing the effect of fructooligosaccharides in infants with constipation. Nutrients. 2018;10(11). pii: E1602. PubMed
- Andermann TM, Fouladi F, Tamburini FB, et al. A Fructo-Oligosaccharide Prebiotic Is Well Tolerated in Adults Undergoing Allogeneic Hematopoietic Stem Cell Transplantation: A Phase I Dose-Escalation Trial. Transplant Cell Ther 2021;27(11):932. PubMed
- Dou Y, Yu X, Luo Y, Chen B, Ma D, Zhu J. Effect of Fructooligosaccharides Supplementation on the Gut Microbiota in Human: A Systematic Review and Meta-Analysis. Nutrients 2022;14(16):3298. PubMed
See these in context on the Fructo-oligosaccharides (fos) monograph →
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC