Amaranth + Ferric Citrate
Ferric Citrate brand name: Auryxia.
We found no known interaction between Amaranth and Ferric Citrate 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 Ferric Citrate states a food rule worth keeping to.
Amaranth and Ferric Citrate
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 Ferric Citrate and Amaranth 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 Amaranth at all — not against Ferric Citrate, 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.
Amaranth safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Some Ferric Citrate Products Have a Food Rule — Amaranth Should Not Break It
At least one FDA label for a product containing Ferric Citrate says to take it with food. If you take Amaranth on an empty stomach out of habit, keep them separate — and take Ferric Citrate 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 Ferric Citrate 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.
( 2.2 ) 2.1 Dosage for Hyperphosphatemia in Chronic Kidney Disease on Dialysis The recommended starting dose is 2 tablets, swallowed whole, 3 times per day with meals.
From the Dosage and Administration section of the FDA label we read for Ferric Citrate — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›
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.
What Ferric Citrate Is Prescribed For, and What Amaranth Has Been Studied For
These two come up together because they touch the same health topic — not because they do the same job. Ferric Citrate is a prescription medicine with approved uses on its FDA label. Amaranth is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.
Ferric Citrate is prescribed for: Ferric citrate tablets — sold as Auryxia and under the generic name Ferric Citrate — are approved for two related uses in adults with chronic kidney disease (CKD). For patients on dialysis, they work as a phosphate binder to control high phosphorus (hyperphosphatemia) levels in the blood. For patients with CKD who are not on dialysis, they serve as an iron replacement to treat iron deficiency anemia.
Amaranth has been studied for:
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Iron deficiency anemia studied, not established Amaranth has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows
Amaranth for iron deficiency anemia
Preliminary clinical research in children shows that consuming 150 grams of bread made with 70% amaranth grain, providing approximately 22.3 mg iron, for 6 months decreases the prevalence of anemia by 61% and increases hemoglobin levels by 8% when compared with consuming bread containing 100% maize grain. The amaranth used in this study was processed to reduce phytic acid content in order to improve iron absorption.
1 source cited
- 104835. Orsango AZ, Loha E, Lindtjørn B, Engebretsen IMS. Efficacy of processed amaranth-containing bread compared to maize bread on hemoglobin, anemia and iron deficiency anemia prevalence among two-to-five year-old anemic children in Southern Ethiopia: A cluste
Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Ferric Citrate on your own; if you are taking Amaranth for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.
See Every Supplement That Interacts With Ferric Citrate
This page covers Amaranth only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ferric Citrate page lists 17 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).
By severity: 1 major · 7 moderate · 9 minor.
From our pharmacist’s overview on the Ferric Citrate page
“Ferric citrate (Auryxia) does its work in the gut, binding dietary phosphate in kidney disease or supplying iron, and all 17 supplements on this list can interfere with how oral medicines get absorbed. That is worth real caution, starting with the single major-rated entry, activated charcoal, which adsorbs many drugs directly and can m…”
Reviewed by 2 · Jul 18, 2026
Taking Amaranth as Part of a Dietary Supplement Product? Check It for Interactions
We hold 404 real supplement products containing Amaranth, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Amaranth. Even though Amaranth itself has no known interaction with Ferric Citrate, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Amaranth and Ferric Citrate 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.
#409 of 1,452 supplements looked up here in the last 7 days
#1,436 of 2,830 medications looked up here in the last 7 days
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 Amaranth reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Amaranth and Ferric Citrate records this page draws on were last updated June 22, 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.
About Amaranth
What is Amaranth?
- Nutrition and as a gluten-free grain
- High cholesterol
- Diarrhea and digestive upset
- Mouth and throat irritation (gargle)
- Wound and skin care (traditional)
Amaranth is a nutritious plant whose seeds are used as a gluten-free pseudocereal and whose leaves are eaten as a vegetable. It is generally considered safe as a food, but evidence for its medicinal benefits (such as lowering cholesterol) is limited and mostly preliminary. Talk to your pharmacist or doctor before using concentrated supplements.
Amaranthus spp. · Amaranthaceae · Leaves, seeds, seed oil, roots, and whole plant · Seeds and flour (pseudocereal), leafy vegetable, seed oil, capsules, powders, and teas
An interaction check asks whether these two react with each other — it does not ask whether Amaranth is a good idea for someone in your situation. Here is what our Amaranth record says about it on its own.
Amaranth: dosing
There is no established standardized medicinal dose for amaranth. As a food, it is simply prepared and eaten like other grains or leafy vegetables.If you choose a supplement, oil, or capsule, follow the directions on the product label, since the amount of active ingredients can vary widely between products.
From our Amaranth monograph — the full record covers uses, side effects and every documented interaction.
About Ferric Citrate
What Is Ferric Citrate Used For?
Brand name: Auryxia
Ferric citrate tablets — sold as Auryxia and under the generic name Ferric Citrate — are approved for two related uses in adults with chronic kidney disease (CKD).
For patients on dialysis, they work as a phosphate binder to control high phosphorus (hyperphosphatemia) levels in the blood. For patients with CKD who are not on dialysis, they serve as an iron replacement to treat iron deficiency anemia.
Most-Reported Side Effects for Ferric Citrate
From FAERS, the FDA’s public side-effect reporting system (0 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Amaranth
Browse every other medication we’ve checked against Amaranth — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Amaranth against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Ivermectin ›
- Testosterone ›
- Losartan Potassium ›
- Abemaciclib ›
- Aspirin ›
- Acetaminophen ›
- Metoprolol ›
- Rosuvastatin ›
- Escitalopram ›
- Rivaroxaban ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Tirzepatide ›
- Methamphetamine ›
- Tadalafil ›
- Ibuprofen ›
- Valacyclovir ›
- Warfarin Sodium ›
- Hydroxyurea ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Propranolol ›
- Amitriptyline ›
- Lisdexamfetamine ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Methotrexate ›
- Amlodipine Besylate ›
- Bendamustine ›
- Amphetamine ›
- Bupropion ›
- Doxycycline ›
- Fluoxetine ›
- Acyclovir ›
- Azithromycin ›
- Pregabalin ›
- Lamotrigine ›
- Dextroamphetamine ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Levothyroxine, Liothyronine ›
- Quetiapine ›
- Clonazepam ›
- Naproxen ›
- Omeprazole ›
- Duloxetine ›
- Letrozole ›
- Methylene Blue ›
- Buspirone ›
- Citalopram ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Amaranth list.
Amaranth References
The 6 references that drive our Amaranth 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.
- Maier SM, Turner ND, Lupton JR. Serum lipids in hypercholesterolemic men and women consuming oat bran and amaranth products. Cereal Chem 2000:77;297-302. DOI
- Martirosyan, D. M., Miroshnichenko, L. A., Kulakova, S. N., Pogojeva, A. V., and Zoloedov, V. I. Amaranth oil application for coronary heart disease and hypertension. Lipids Health Dis. 2007;6:1.
- Cherkas A, Zarkovic K, Cipak Gasparovic A, et al. Amaranth oil reduces accumulation of 4-hydroxynonenal-histidine adducts in gastric mucosa and improves heart rate variability in duodenal peptic ulcer patients undergoing Helicobacter pylori eradication. F
- Dus-Zuchowska M, Walkowiak J, Morawska A, et al. Amaranth oil increases total and LDL cholesterol levels without influencing early markers of atherosclerosis in an overweight and obese population: A randomized double-blind cross-over study in comparison w
- Orsango AZ, Loha E, Lindtjørn B, Engebretsen IMS. Efficacy of processed amaranth-containing bread compared to maize bread on hemoglobin, anemia and iron deficiency anemia prevalence among two-to-five year-old anemic children in Southern Ethiopia: A cluste
- Moszak M, Zawada A, Juchacz A, Grzymislawski M, Bogdanski P. Comparison of the effect of rapeseed oil or amaranth seed oil supplementation on weight loss, body composition, and changes in the metabolic profile of obese patients following 3-week body mass
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.
Taking Amaranth and Ferric Citrate Together: Common Questions
Is it safe to take Amaranth with Ferric Citrate?
Should I take Amaranth and Ferric Citrate at the same time of day?
Are Amaranth and Ferric Citrate used for the same thing?
Does Ferric Citrate interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.