ferrous fumarate
Skip itA concentrated shelf (top 5 take 80% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Great$22.03avg listing price — sweet spot $15–$100
Conversion
Great10.1%search→purchase rate — share of searches ending in a sale
Price range
Great$6.13–$87.14cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay$217K$217K/yr · 97K searches
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Growth
Okay+0.6%90-day search growth — must beat 0% to launch
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad5,621.77avg incumbent reviews — the moat a new listing must climb
Competition
Bad80%top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, ferrous fumarate is a $217K/yr Amazon United States market (97K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 47/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
ferrous fumarate market data
- Units sold / yr
- 8K–10K
- avg 500–750/product
- Revenue / yr
- $176K–$220K
- units × avg price
- Conversion rate
- 10.1%
- Avg BSR
- #194
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 85%
- Out of stock
- 0.0%
- Avg brand age
- 84 months
- Avg seller age
- 165 days
Competition & brand share
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.Brands
11 falling
Sellers
89
Top-5 brand share
86%
Top 20: 100%
Top-5 click share
80%
Top 20: 100%
Open market
11%
- Vitamatic39%
- Ferretts31%
- Cypress Pharmaceutical6%
- Pharmaris6%
- Swanson4%
- THORNE3%
- Open — no brand owns it (5 brands, 11%)
Demand & seasonality
Weekly Amazon search volume, last 103 weeks — +0.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top ferrous fumarate search terms
- ferrous fumarate37K/yr
- fumarato ferroso para adultos11K/yr
- ferrous fumarate iron supplement12K/yr
- ferrous fumarate 325mg6K/yr
- fumarato ferroso6K/yr
- ferrets iron supplement 325 mg5K/yr
- ferretts iron supplement 325 mg6K/yr
- ferretts iron supplement4K/yr
- fumarato ferroso para anemia3K/yr
- ferrets iron4K/yr
Top ferrous fumarate products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Vitamatic Ferrous Fumarate 325 mg + Vitamin C 100 mg (104 mg Elemental Iron) High Potency Iron Supplement Gentle on Stomach 120 Coated Tablets Made in USA
Vitamatic$16.634.6★236 rev
Ferretts Iron Tablets 106mg (325mg Ferrous Fumarate) - 60 Day Supply of High Potency Iron Supplements for Women & Men Easy on The Stomach Iron Supplements for Anemia 60 Iron Pills Per Bottle
Ferretts$16.154.5★2,136 rev
Ferretts Iron Tablets 325mg Ferrous Fumarate 2 Pack (120 Total)
Ferretts$27.114.5★1,237 rev
Cypress Pharmaceutical Ferrous Fumarate 324 Tablets Boxed 100ct
Cypress Pharmaceutical$19.144.6★635 rev
Pharmaris Ferofit - Ferrous Fumarate 300mg (100mg Elemental Iron) Prevents Anemia Due to Deficiency Iron Supplement for Women & Men 100 Tablets
Pharmaris$24.134.6★519 rev
Newest
by launch dateVitamatic Ferrous Fumarate 325 mg + Vitamin C 100 mg (104 mg Elemental Iron) High Potency Iron Supplement Gentle on Stomach 120 Coated Tablets Made in USA
Vitamatic$16.63236 rev
Pharmaris Ferofit - Ferrous Fumarate 300mg (100mg Elemental Iron) Prevents Anemia Due to Deficiency Iron Supplement for Women & Men 100 Tablets
Pharmaris$24.13519 rev
Vitamatic Ferrous Gluconate 324 mg + Vitamin C 100 mg - No Artificial Color Additives - Gentle on Stomach - 250 Tablets - Made in USA
Vitamatic$9.99523 rev
Puregen Labs Ferrous Sulfate 325 mg (65 mg Elemental Iron) High Potency Iron Supplement | No Artificial Color Additives - 200 Tablets
P Puregen Labs$10.023,990 rev
SiderAL Forte Sucrosomial Iron Supplement for Women and Men - Clinically Proven to Increase Levels without Side Effects Gentle on Stomach 7x Higher Absorption for Anemia & Energy Vitamin C 30ct
PHARMANUTRA$87.141,560 rev
Trending
90-day click momentumVitamatic Ferrous Gluconate 324 mg + Vitamin C 100 mg - No Artificial Color Additives - Gentle on Stomach - 250 Tablets - Made in USA
Vitamatic$9.994.6★
Vitamatic Ferrous Fumarate 325 mg + Vitamin C 100 mg (104 mg Elemental Iron) High Potency Iron Supplement Gentle on Stomach 120 Coated Tablets Made in USA
Vitamatic$16.634.6★
Designs for Health Iron Vital for Energy Production Immune & Brain Health High Absorption Ferrochel Chelated Iron for Women & Men as Ferrous Bisglycinate Chelate Pregnancy Safe (120 Vegan Caps)
Designs for Health$21.884.7★
Ferretts Iron Tablets 325mg Ferrous Fumarate 2 Pack (120 Total)
Ferretts$27.114.5★
Puregen Labs Ferrous Sulfate 325 mg (65 mg Elemental Iron) High Potency Iron Supplement | No Artificial Color Additives - 200 Tablets
P Puregen Labs$10.024.7★
What buyers say about ferrous fumarate
What buyers praise and complain about, mined from review topics.What buyers love
“Great iron supplement”
“Good quality arrived quickly”
“DOES THE JOB”
“No upset stomach”
“doesnt cause side effects”
“Good deal”
“Will not cause constipation”
“DOES THE JOB”
“Easy to Swallow”
“A good vitamin—easy to take”
What buyers complain about
“My iron levels are low”
“Horrible Taste”
“Waste of money”
“I probably have the worst stomach out there”
“Made me extremely dizzy”
“Causes constipation”
“Bad additives”
“These are much lighter in color”
“I cant do it twice day”
“Didn't work for me”
Top return reasons
Common questions
- Is ferrous fumarate profitable to sell on Amazon United States?
- The niche generates $217K/yr across 13 tracked products. 90-day search growth is +0.6%. Flapen's verdict: Skip it (47/100).
- How competitive is the ferrous fumarate niche?
- 11 brands and 89 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 86% of demand.
- What do buyers complain about in ferrous fumarate?
- Top complaints mined from reviews: Iron, Taste-Overall, Value For Money. The return rate is 0.0%.
- When does demand for ferrous fumarate peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the ferrous fumarate niche?
- Listings span $6.13–$87.14; the average listing price is $22.03 (sweet spot $15–$100). The average incumbent carries 5,622 reviews — the moat a new listing must climb.