---
title: "Iron Supplement — $1.4M/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/health-household/iron-supplement"
last_updated: "2026-08-12T11:45:17.621Z"
locale: en
meta:
description: "Amazon product research for iron supplement: $1.4M/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for iron supplement: $1.4M/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Iron Supplement — $1.4M/mo Amazon US Product Research (2026)"
---
# **Iron Supplement**
**Worth a look**
Shows a $16.6M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 100Growth 25Conversion 96Competition 47Returns 100Price range 84Avg price 88Brand share 56Review moat 21Quality gap 23
**Market size**
**Incredible****$16.6M**
$16.6M/yr · 6.4M searches
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.9%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$20.10**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$3.92–$87.14**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****72%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-0.2%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****11,779.77**
avg incumbent reviews — the moat a new listing must climb
## **Is iron supplement profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, iron supplement is a $16.6M/yr Amazon United States market (6.4M searches/yr). The top 5 brands hold 72% of demand. Verdict: Worth a look — 63/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **iron supplement market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **800K–1.0M**
- avg 40,000–50,000/product
- **Revenue / yr**
- **$16.1M–$20.1M**
- units × avg price
- **Conversion rate**
- **12.9%**
- **Avg BSR**
- **#67**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **85%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **76 months**
- **Avg seller age**
- **151 days**
## **Competition: brands, sellers & click share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**21 **▲rising
**Sellers**
**730**
**Top-5 brand share**
**72%**
Top 20: 99%
**Top-5 click share**
**57%**
Top 20: 92%
**Open market**
**24%**
- Nature Made25% - Nature's Bounty24% - THORNE10% - MegaFood8% - NUTRAHARMONY5% - Pure Encapsulations4%
## **iron supplement demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -0.2% search growth over the last 90 days.
150K100KPrime Day '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/us/health-household/iron-supplement/trend)
## **Top iron supplement search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **iron supplement**3.3M/yr-1.8%12.0% conv. - **iron supplement for women**1.4M/yr-11.4%9.4% conv. - **iron pills**370K/yr+4.7%10.2% conv. - **iron supplements for men**215K/yr-16.2%14.2% conv. - **iron vitamins**85K/yr+62.9%6.6% conv. - **iron supplements**136K/yr+0.8%8.4% conv. - **iron pills for women**128K/yr+4.9%10.1% conv. - **iron tablets**103K/yr+14.5%7.0% conv. - **iron 65mg**64K/yr+67.0%21.4% conv. - **hierro para mujeres con anemia**93K/yr-4.8%2.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/iron-supplement/search-terms)
## **Top iron supplement products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$1.7M20%$3.3M30%$5.0M40%$6.6M1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nature Made Iron 65 mg (325 mg Ferrous Sulfate) Tablets 180 Tablets**Nature Made**$6.13**4.7★55,047 rev](https://www.amazon.com/dp/B003PGJLRO) [2**Natures Bounty Iron 65mg 325 mg Ferrous Sulfate Cellular Energy Support Promotes Normal Red Blood Cell Production 1 Serving Per Day Gluten Free 100 Vegetarian Tablets**Nature's Bounty**$4.84**4.7★35,936 rev](https://www.amazon.com/dp/B006QQRY2O) [3**THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings**THORNE**$15.64**4.7★8,578 rev](https://www.amazon.com/dp/B0797GZDZL) [4**Iron Supplement for Women - Iron 65mg (Ferrous Sulfate 325mg) - 60 Caps**NUTRAHARMONY**$17.76**4.6★2,124 rev](https://www.amazon.com/dp/B0D47FBQP6) [5**Pure Encapsulations Iron-C - 15 mg - 175 mg Vitamin C - Red Blood Cell Support* - Energy Production - Highly Bioavailable Iron Pill - for Women & Men - Gluten Free & Vegan - 60 Capsules**Pure Encapsulations**$13.43**4.7★3,138 rev](https://www.amazon.com/dp/B0017HQDVK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Sports Research Blood Balance Iron Supplement 36mg 90 Liquid Caps**Sports Research**$24.76**182 rev9mo ago](https://www.amazon.com/dp/B0FXJKHPL7) [**Ritual Iron Bisglycinate Supplement 60mg - 48-Hour Dosing - 15 Capsules**Ritual**$23.82**305 rev11mo ago](https://www.amazon.com/dp/B0FLLRFRPX) [**OLLY Delightful Iron Chewable Tablet Iron Supplement from AB Fortis Fruit Punch Flavored 30 or 20 Day Supply - 60 Count**OLLY**$12.90**1,137 rev1y ago](https://www.amazon.com/dp/B0DXXV3KF1) [**Naked Iron 65mg 325mg Ferrous Bisglycinate - High Potency Iron Supplement for Iron Deficiency Cellular Energy Support Promotes Healthy Red Blood Cell Production Non-GMO Gluten-Free 60 Capsules**NAKED**$13.01**821 rev1y ago](https://www.amazon.com/dp/B0DMXXX23B) [**Iron Supplement for Women - Iron 65mg (Ferrous Sulfate 325mg) - 60 Caps**NUTRAHARMONY**$17.76**2,124 rev2y ago](https://www.amazon.com/dp/B0D47FBQP6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Natures Bounty Gentle Iron 28 mg Capsules with Vitamin C Folic Acid Vitamin B-12 Iron Supplement Non-GMO Gluten-Free 90 Count**Nature's Bounty**$6.42**4.7★**▲ 168%**](https://www.amazon.com/dp/B0061GLELG) [**Sports Research Blood Balance Iron Supplement 36mg 90 Liquid Caps**Sports Research**$24.76**4.7★**▲ 100%**](https://www.amazon.com/dp/B0FXJKHPL7) [**Ritual Iron Bisglycinate Supplement 60mg - 48-Hour Dosing - 15 Capsules**Ritual**$23.82**4.5★**▲ 54%**](https://www.amazon.com/dp/B0FLLRFRPX) [**Iron Supplement for Women - Iron 65mg (Ferrous Sulfate 325mg) - 60 Caps**NUTRAHARMONY**$17.76**4.6★**▲ 51%**](https://www.amazon.com/dp/B0D47FBQP6) [**NATURELO Vegan Iron Supplement with Vitamin C and Organic Whole Foods - Gentle Iron Pills for Women & Men with Iron Deficiency Including Pregnancy Anemia and Vegan Diets - 90 Mini Capsules**NATURELO**$21.45**4.6★**▲ 36%**](https://www.amazon.com/dp/B07ZN3WGJL)
**~~View all trending →~~**
## **What reviews say buyers love and hate about iron supplement**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Iron**22%
*“Great iron pills”*
**Quality-Overall**12%
*“This is a high quality product which has been of significant help in my case”*
**Acid Regulator/Stomach Ache Relief**6%
*“No constipation or stomach upset”*
**Vitamin**5%
*“Great vitamin”*
**Value For Money**5%
*“very affordable”*
**Advertised Vs Actual Product**4%
*“Works as stated”*
**Energy Level**4%
*“Boost energy”*
**Regulates Digestion**4%
*“Easy to digest”*
**Taste-Overall**3%
*“No weird after taste”*
**Efficiency**3%
*“it seems to be doing good”*
### **What buyers complain about **
**Iron**20%
*“No iron in them”*
**Taste-Overall**9%
*“Disgusting taste”*
**Acid Regulator/Stomach Ache Relief**6%
*“Horrible stomach pain”*
**Side Effects**5%
*“Made me nauseous”*
**Regulates Digestion**3%
*“it is mildly constipating for me”*
**Value For Money**3%
*“extremely expensive”*
**Ease Of Use**2%
*“It was hard to remove”*
**Dosage**2%
*“65mg in a serving is a MASSIVE dose”*
**Functionality-Overall**2%
*“I couldn't function”*
**Vitamin**2%
*“Megadose of unwanted vitamins such as B12”*
### **Top return reasons **
**Iron**22%
**Acid Regulator/Stomach Ache Relief**13%
**Vitamin**8%
**Leak-Proof**7%
**Value For Money**6%
**Regulates Digestion**5%
**Certifications**5%
**Functionality-Overall**3%
**Ease Of Use**3%
**Side Effects**3%
## **Common iron supplement questions**
- **Is iron supplement profitable to sell on Amazon United States?**
- The niche generates $16.6M/yr across 26 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -0.2%. Flapen's verdict: Worth a look (63/100).
- **How competitive is the iron supplement niche?**
- 21 brands and 730 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 72% of demand.
- **What do buyers complain about in iron supplement?**
- Top complaints mined from reviews: Iron, Taste-Overall, Acid Regulator/Stomach Ache Relief. The return rate is 0.0%.
- **When does demand for iron supplement peak?**
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- **What does it cost to enter the iron supplement niche?**
- Listings span $3.92–$87.14; the average listing price is $20.10 (sweet spot $15–$100). The average incumbent carries 11,780 reviews — the moat a new listing must climb.
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