Non Constipating Iron Supplement
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible13.2%search→purchase rate — share of searches ending in a sale
Avg price
Okay$10.32avg listing price — sweet spot $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Okay$111K$111K/yr · 81K searches
Review moat
Okay3,968.13avg incumbent reviews — the moat a new listing must climb
Growth
Bad-8.3%90-day search growth — must beat 0% to launch
Price range
Bad$8.06–$15.64cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Bad93%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Is non constipating iron supplement profitable on Amazon?
According to Flapen's Amazon United States niche tracking, non constipating iron supplement is a $111K/yr Amazon United States market (81K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 34/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
non constipating iron supplement market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 10K–13K
- avg 1,250–1,500/product
- Revenue / yr
- $103K–$129K
- units × avg price
- Conversion rate
- 13.2%
- Avg BSR
- #376
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 38%
- Out of stock
- 0.0%
- Avg brand age
- 85 months
- Avg seller age
- 160 days
Competition: brands, sellers & click share
The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 rising
Sellers
60
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
93%
Top 20: 100%
Open market
0%
- NOW Foods90%
- Amazon Elements5%
- Nature Made3%
- THORNE2%
non constipating iron supplement demand & seasonality
Weekly Amazon search volume, last 99 weeks — -8.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top non constipating iron supplement search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- now iron21K/yr
- now iron supplement18K/yr
- iron 18 mg10K/yr
- now iron bisglycinate5K/yr
- iron now5K/yr
- iron supplement 18 mg6K/yr
- now foods iron3K/yr
- iron 18mg3K/yr
- iron supplement now3K/yr
- 18mg iron supplement3K/yr
Top non constipating 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.
All 8 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
NOW Supplements Iron 36 mg Double Strength Non-Constipating* Essential Mineral 90 Veg Capsules
NOW Foods$9.144.7★3,704 rev
NOW Foods Supplements Iron 18 mg Non-Constipating* Essential Mineral 120 Veg Capsules
NOW Foods$8.334.6★5,902 rev
NOW Foods Supplements Iron Complex Non-Constipating* Essential Mineral 100 Tablets
NOW Foods$8.064.6★1,431 rev
Amazon Elements Iron 18mg Capsules Supports Red Blood Cell Production Vegan 195 Count 6 month supply (Packaging may vary)
Amazon Elements$9.574.6★8,210 rev
NOW Foods Supplements Iron Complex Caps Non-Constipating* Essential Mineral 100 Veg Capsules
NOW Foods$10.434.5★171 rev
Newest
by launch date
Nature Made Iron 18 mg per Serving Gummies with Vitamin C 60 Gummies
Nature Made$12.243,351 rev
NOW Foods Supplements Iron Complex Caps Non-Constipating* Essential Mineral 100 Veg Capsules
NOW Foods$10.43171 rev
Amazon Elements Iron 18mg Capsules Supports Red Blood Cell Production Vegan 195 Count 6 month supply (Packaging may vary)
Amazon Elements$9.578,210 rev
NOW Supplements Iron 36 mg Double Strength Non-Constipating* Essential Mineral 90 Veg Capsules
NOW Foods$9.143,704 rev
THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings
THORNE$15.648,578 rev
Trending
90-day click momentumNOW Supplements Iron 36 mg Double Strength Non-Constipating* Essential Mineral 90 Veg Capsules
NOW Foods$9.144.7★
NOW Foods Supplements Iron 18 mg Non-Constipating* Essential Mineral 120 Veg Capsules
NOW Foods$8.334.6★
NowFoods Iron 18 mg Essential Mineral 120 Veg Capsules
NOW Foods$9.154.6★
THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings
THORNE$15.644.7★
Nature Made Iron 18 mg per Serving Gummies with Vitamin C 60 Gummies
Nature Made$12.244.3★
What reviews say buyers love and hate about non constipating iron supplement
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent iron source”
“No complaints so far”
“No bloat, no constipation”
“EXCELLENT PRODUCT - NO DIGESTIVE ISSUES”
“Good vitamins”
“Reasonably priced”
“Works well”
“I was thinking this was working well for me as it caused me no issues”
“Easy to swallow”
“I noticed an improvement in my energy levels”
What buyers complain about
“My Iron was low”
“starts to taste weird”
“Severe discomfort, bloating and constipation”
“It is mildly constipating”
“Not sure if I want to take these”
“Rancid smell”
“Made me very nauseous”
“It was too strong for me to take pay close attention to your body response”
“I wish that it came with some vitamin C in it — my only complaint — to aid absorption”
“Didn't work for me”
Top return reasons
Common non constipating iron supplement questions
- Is non constipating iron supplement profitable to sell on Amazon United States?
- The niche generates $111K/yr across 8 tracked products. 90-day search growth is -8.3%. Flapen's verdict: Skip it (34/100).
- How competitive is the non constipating iron supplement niche?
- 4 brands and 60 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in non constipating 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 non constipating iron supplement peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the non constipating iron supplement niche?
- Listings span $8.06–$15.64; the average listing price is $10.32 (sweet spot $15–$100). The average incumbent carries 3,968 reviews — the moat a new listing must climb.