Iron Fish Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Iron Fish sales on Amazon US totaled 90,800 units in July 2026 (▼ 5.3% vs. the prior month), generating an estimated $1,110,226 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 94.7% of unit volume and 92.5% of revenue, while a typical listing is priced at $17.26. The keyword itself pulled 29,202 Amazon queries over the same period (▲ 4.8% MoM).
Zooming out to the 12-month window ending July 2026, the iron fish Top 50 moved 983,850 units and $11,982,177 in cumulative sales — an average of 81,988 units and $998,515 per month. Monthly throughput topped out at 104,550 units in February 2026 and dipped to 31,000 in May 2026, leaving the latest reading 9.3% higher than August 2025.
Iron Fish Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
90.8K
▼ 5.3% MoM
Monthly Revenue 2026/07
$1.1M
▼ 7.9% MoM
Top 10 Market Share 2026/07
94.7%
Iron Fish Market Share & Sales Concentration on Amazon US — July 2026
The most-sold iron fish listing on Amazon US in July 2026 is ASIN B003PGJLRO (Brand: Nature Made), which sold 50,000 units at $7.06 apiece — equal to 55.1% of every unit tracked in this report and 5.0× the volume of the No. 2 listing.
The Top 10 ASINs account for 86,000 units and $1,026,670 in July 2026 — 94.7% of unit volume and 92.5% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Iron Fish' on Amazon
July 2026
Is 94.7% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
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Top 5 Volume Share breakdown
B003PGJLRO
Nature Made Iron 65 mg (325 mg Ferrous Sulfate) Tablets, 180 Tablets | Iron Supplements for Men and Women with an Iron Deficiency, Dietary Supplement for Red Blood Cell Support, 180 Day Supply
50K
▲ 0.0%vs. prior month
$327K
latest month
12-month trend
B089HGM4VR
MegaFood Blood Builder Iron Supplement, Energy Support, 72 Mini Tablets | Increase Iron Levels Without Side Effects, Improves Energy Levels, B12, Folic Acid and Vitamin C for Absorption, 36 Servings
10K
▲ 0.0%vs. prior month
$168.5K
latest month
12-month trend
B0DXXV3KF1
OLLY Delightful Iron Chewable Tablet, 18 mg Iron, Fruit Punch - 60 Count | Foundational Wellness Support, Iron (as AB Fortis® microencapsulated ferric saccharate), No Synthetic Colors or Flavors
5K
▼ 16.7%vs. prior month
$64.5K
latest month
12-month trend
B0085JNY5Q
Feosol Original Iron Supplement Tablets, 65mg, 120ct, 4 Month Supply | Iron supplements for energy and immune system support, small coated ferrous sulfate tablets
5K
▲ 0.0%vs. prior month
$60.1K
latest month
12-month trend
B0FLLRFRPX
Ritual Iron Bisglycinate Supplement 60mg - 48-Hour Dosing - 15 Capsules | Gentle Support for Women with Low Iron Levels - Blood Boosting** - BioSeries Technology - Vitamin A, C - Vegan - Citrus
4K
▼ 20.0%vs. prior month
$100K
latest month
12-month trend
B00OKPEPSO
BariMelts Iron with Vitamin C, 90 Fast-Dissolving Tablets (1-Month Supply), Sugar-Free Bariatric Iron Supplement for Women, Natural Orange Flavor
4K
▲ 0.0%vs. prior month
$92K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Iron Fish Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Nature Made is the best-performing iron fish brand in July 2026, moving 50,000 units across 1 ASIN for 58.1% of Top 10 volume. MegaFood follows with 10,000 units (11.6%), ahead of OLLY on 5,000 units (5.8%).
With 10 brands splitting the Top 10 and 75.6% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $7.06 to $16.99, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Nature Made
1 ASIN in Top 10
58.1%
Units
50K
Revenue
$327K
Avg. price
$7.06
B003PGJLRO
$7.06·★4.7·55.4K revsNature Made Iron 65 mg (325 mg Ferrous Sulfate) Tablets, 180 Tablets | Iron Supplements for Men and Women with an Iron Deficiency, Dietary Supplement for Red Blood Cell Support, 180 Day Supply
Units sold50K
MegaFood
1 ASIN in Top 10
11.6%
Units
10K
Revenue
$168.5K
Avg. price
$16.99
B089HGM4VR
$16.99·★4.7·16.5K revsMegaFood Blood Builder Iron Supplement, Energy Support, 72 Mini Tablets | Increase Iron Levels Without Side Effects, Improves Energy Levels, B12, Folic Acid and Vitamin C for Absorption, 36 Servings
Units sold10K
OLLY
1 ASIN in Top 10
5.8%
Units
5K
Revenue
$64.5K
Avg. price
$12.89
B0DXXV3KF1
$12.89·★4.5·1.2K revsOLLY Delightful Iron Chewable Tablet, 18 mg Iron, Fruit Punch - 60 Count | Foundational Wellness Support, Iron (as AB Fortis® microencapsulated ferric saccharate), No Synthetic Colors or Flavors
Units sold5K
Trending Iron Fish Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. On the growth side, B0G3WQCWSP leads positive momentum with ▲ 100.0% MoM growth on 200 units, with B0GCVWM88K close behind at ▲ 50.0% MoM on 300 units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B0G3WQCWSP
Iron Fish for Cooking, 2-Pack Reusable Iron Supplement for Food and Water | Pure natural iron releases into soups stews curries pasta tea when boiled, for vegans home cooks, reusable 2pcs daily cooking
Price
$9.49
Rating
4.9
Reviews
20
Latest month sales
B0GCVWM88K
Iron Fish Cooking Tool, Natural Supplement to Support Iron Levels for Vegans, Great Gift for Family and Friends (1 Pack)
Price
$5.99
Rating
4.1
Reviews
74
Latest month sales
B0FWX8DZ9V
Iron Fish Cooking Tool 3 Pack | Natural Cooking Tool to Add Iron to Food & Water, Safe & Effective Aid for Vegans, Athletes, Pregnant Women and Children
Unlock to view ASIN details and product titles
Price
$8.99
Rating
4.0
Reviews
105
Latest month sales
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