Drug & supplement interaction

Fructo-oligosaccharides (fos) + Insulin Lispro-Aabc

Insulin Lispro-Aabc brand name: Lyumjev.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Fructo-oligosaccharides (fos) and Insulin Lispro-Aabc in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the label for Insulin Lispro-Aabc states a food rule worth keeping to.

Know someone taking this? Share
Interaction report

Fructo-oligosaccharides (fos) and Insulin Lispro-Aabc

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Insulin Lispro-Aabc and Fructo-oligosaccharides (fos) in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for Fructo-oligosaccharides (fos) at all — not against Insulin Lispro-Aabc, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Fructo-oligosaccharides (fos) safety at a glance

Fructo-oligosaccha... overall Use caution Generally well tolerated in food amounts but can cause gas and bloating, especially at higher doses.
Pregnancy Use caution Likely fine in normal food amounts, but supplement-level doses are not well studied, so check with your doctor.
Breastfeeding Use caution Limited safety data for supplement use, so use only with professional guidance.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Insulin Lispro-Aabc and Fructo-oligosaccharides (fos)? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Fructo-oligosaccharides (fos) Itself Has Been Linked To

This is not an interaction — nothing below involves Insulin Lispro-Aabc. It is the side-effect record for Fructo-oligosaccharides (fos) on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Fructo-oligosaccharides (fos), this list is the first place to look.

  • Bloating or gas / Stomach pain Additional detail

    “Orally, FOS may cause flatulence, belching, abdominal pain, intestinal sounds, constipation, and bloating. These symptoms can occur commonly in some patients, but are generally mild at doses under 10 grams per day.”

    Fructo-oligosaccharides (fos) · Natural Medicines adverse-effect record, reported in constipation.

    6 sources cited
    1. 745. Briet F, et al. Symptomatic response to varying levels of fructo-oligosaccharides consumed occasionally or regularly. Eur J Clin Nutr 1995;49:501-7.
    2. 750. 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
    3. 8509. Cummings JH, Macfarlane GT, Englyst HN. Prebiotic digestion and fermentation. Am J Clin Nutr 2001;73:415S-420S. PubMed
    4. 98651. 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
    5. 107931. 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
    6. 110710. 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
  • Constipation Additional detail

    Recorded for Fructo-oligosaccharides (fos) in the same Natural Medicines adverse-effect record shown under Bloating or gas / Stomach pain above.

Everything above comes from the Natural Medicines adverse-effect record for Fructo-oligosaccharides (fos) — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Insulin Lispro-Aabc’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Insulin Lispro-Aabc column appears here.

How to take them

Some Insulin Lispro-Aabc Products Have a Food Rule — Fructo-oligosaccharides (fos) Should Not Break It

At least one FDA label for a product containing Insulin Lispro-Aabc says to take it with food. If you take Fructo-oligosaccharides (fos) on an empty stomach out of habit, keep them separate — and take Insulin Lispro-Aabc with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Insulin Lispro-Aabc products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

( 2.1 , 2.2 , 2.3 , 2.4 ) Subcutaneous injection ( 2.2 ): Administer HUMALOG ® U-100 or U-200 by subcutaneous injection into the abdominal wall, thigh, upper arm, or buttocks within 15 minutes before a meal or immediately after a meal.

From the Dosage and Administration section of the FDA label we read for Insulin Lispro-Aabc — where that label names a specific product, the instruction is that product's.

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Insulin Lispro-Aabc

This page covers Fructo-oligosaccharides (fos) only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Insulin Lispro-Aabc page lists 239 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Siberian Cocklebur (major), Acai (moderate), African Wild Potato (moderate), Agaricus Mushroom (moderate) and Agmatine (moderate).

By severity: 1 major · 208 moderate · 30 minor.

From our pharmacist’s overview on the Insulin Lispro-Aabc page

“Lyumjev (insulin lispro-aabc) is an ultra rapid mealtime insulin, built to drop blood sugar quickly, which is why its 239 interacting supplements call for genuine care. Nearly all of them work on the same axis.”

Reviewed by 2 · Jul 18, 2026

Open the Insulin Lispro-Aabc interaction page

One more smart check

Taking Fructo-oligosaccharides (fos) as Part of a Dietary Supplement Product? Check It for Interactions

We hold 1,251 real supplement products containing Fructo-oligosaccharides (fos), each one broken down to its full ingredient list — and combination products often carry several ingredients besides Fructo-oligosaccharides (fos). Even though Fructo-oligosaccharides (fos) itself has no known interaction with Insulin Lispro-Aabc, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Fructo-oligosaccharides (fos) and Insulin Lispro-Aabc Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Fructo-oligosaccharides (fos)
Top 25%

#223 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Insulin Lispro-Aabc
Steady interest

#2,182 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Fructo-oligosaccharides (fos) reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Fructo-oligosaccharides (fos) and Insulin Lispro-Aabc records this page draws on were last updated July 10, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Fructo-oligosaccharides (fos)

What is Fructo-oligosaccharides (fos)?

  • Digestive and gut health
  • Prebiotic to support good bacteria
  • Constipation relief
  • Calcium absorption support
  • Blood sugar and appetite support

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 generally considered safe for most people in normal food amounts, but higher doses commonly cause gas and bloating. Evidence for many health claims is still limited, so talk with your pharmacist or doctor before using FOS supplements.

Carbohydrate fibers extracted from plants such as chicory root, or made by enzymatic processing of sugars · Powders, capsules, syrups, added to foods and infant formulas, and combined with probiotics in synbiotic products

An interaction check asks whether these two react with each other — it does not ask whether Fructo-oligosaccharides (fos) is a good idea for someone in your situation. Here is what our Fructo-oligosaccharides (fos) record says about it on its own.

Fructo-oligosaccharides (fos): dosing

There is no single official or standardized dose of FOS. Amounts used in studies and products vary widely, often given as a few grams of fiber per day.Because higher amounts increase the risk of gas and bloating, it is best to start low and increase gradually if needed.

From our Fructo-oligosaccharides (fos) monograph — the full record covers uses, side effects and every documented interaction.

Read the full Fructo-oligosaccharides (fos) monograph & all interactions
Keep checking

Other Drugs & Fructo-oligosaccharides (fos)

Browse every other medication we’ve checked against Fructo-oligosaccharides (fos) — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
No interaction 2,829 drugs checked — show the list
Evidence & sources

Fructo-oligosaccharides (fos) References

The 6 references that drive our Fructo-oligosaccharides (fos) monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Briet F, et al. Symptomatic response to varying levels of fructo-oligosaccharides consumed occasionally or regularly. Eur J Clin Nutr 1995;49:501-7.
  2. 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
  3. Cummings JH, Macfarlane GT, Englyst HN. Prebiotic digestion and fermentation. Am J Clin Nutr 2001;73:415S-420S. PubMed
  4. 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
  5. 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
  6. 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

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Fructo-oligosaccharides (fos) and Insulin Lispro-Aabc Together: Common Questions

Is it safe to take Fructo-oligosaccharides (fos) with Insulin Lispro-Aabc?
We do not list a known interaction between Fructo-oligosaccharides (fos) and Insulin Lispro-Aabc. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Should I take Fructo-oligosaccharides (fos) and Insulin Lispro-Aabc at the same time of day?
At least one FDA label for a product containing Insulin Lispro-Aabc says to take it with food. If you take Fructo-oligosaccharides (fos) on an empty stomach out of habit, keep them separate and take Insulin Lispro-Aabc with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Insulin Lispro-Aabc products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Does Insulin Lispro-Aabc interact with any supplements?
Yes. Insulin Lispro-Aabc has documented interactions with 239 supplements in our database — Fructo-oligosaccharides (fos) is not one of them. The Insulin Lispro-Aabc interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Still Have a Question About Insulin Lispro-Aabc and Fructo-oligosaccharides (fos)?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.