Is iron glycinate profitable to sell on Amazon United States?

The niche generates $146K/yr across 10 tracked products. 90-day search growth is +14.2%. Flapen's verdict: Skip it (45/100).

How competitive is the iron glycinate niche?

8 brands and 57 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 92% of demand.

What do buyers complain about in iron glycinate?

Top complaints mined from reviews: Iron, Acid Regulator/Stomach Ache Relief, Dosage. The return rate is 0.0%.

When does demand for iron glycinate peak?

Demand peaks in Jan–Dec; the busiest month runs 2.8× the quietest.

What does it cost to enter the iron glycinate niche?

Listings span $6.42–$26.23; the average listing price is $14.97 (sweet spot $15–$100). The average incumbent carries 3,534 reviews — the moat a new listing must climb.

Iron Glycinate

Skip it

A concentrated shelf (top 5 take 85% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible16.1%

search→purchase rate — share of searches ending in a sale

Avg price

Great$14.97

avg listing price — sweet spot $15–$100

Price range

Good$6.42–$26.23

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Okay+14.2%

90-day search growth — must beat 0% to launch

Market size

Okay$146K

$146K/yr · 61K searches

Review moat

Okay3,533.7

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad92%

top-5 brand share — brand-locked demand

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad85%

top-5 click share — a locked-up shelf

Is iron glycinate profitable on Amazon?

According to Flapen's Amazon United States niche tracking, iron glycinate is a $146K/yr Amazon United States market (61K searches/yr). The top 5 brands hold 92% of demand. Demand peaks in Jan–Dec. Verdict: Skip it — 45/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

iron glycinate market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 10K–13K; avg 500–750/product
Revenue / yr: $150K–$187K; units × avg price
Conversion rate: 16.1%
Avg BSR: #206
Page quality: 0%
Prime: 100%
Sponsored: 90%
Out of stock: 0.0%
Avg brand age: 83 months
Avg seller age: 160 days

Competition: brands, sellers & click share

The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 flat

Sellers

Top-5 brand share

92%

Top 20: 100%

Top-5 click share

85%

Top 20: 100%

Open market

Nature's Bounty53%
XYMOGEN15%
THORNE13%
New Elements8%
Pure Encapsulations3%
Bronson3%
Open — no brand owns it (2 brands, 5%)

iron glycinate demand & seasonality

Weekly Amazon search volume, last 95 weeks — +14.2% search growth over the last 90 days.

Peak months: Jan, Dec · busiest ÷ quietest = 2.8×

Open Trend

Top iron glycinate search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

iron glycinate35K/yr +21.1%10.3% conv.
natures bounty gentle iron7K/yr +34.1%22.9% conv.
iron glycinate supplement10K/yr -20.6%9.3% conv.
natures bounty gentle iron 28 mg4K/yr +25.2%31.8% conv.
gentle iron 28 mg4K/yr -0.3%30.4% conv.

All search terms

Top iron glycinate 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

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$6.424.7★1,068 rev

XYMOGEN Iron Glycinate - Supports Hemoglobin & Iron Levels - Highly Absorbable Gentle Iron Supplement - Vegetarian Gluten-Free & Dairy-Free - 120 Capsules

XYMOGEN$26.234.7★220 rev

THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings

THORNE$15.644.7★8,578 rev

Iron Supplement for Women & Men | Iron Glycinate 50mg + Vitamin C Folic Acid 1000mcg Vitamin B12 | Anemia Relief Energy Boost & Immune Support | Gentle on Stomach Fast Absorption | 60 Softgels

New Elements$14.024.6★164 rev

Natures Bounty Gentle Iron 28 mg 90 Capsules

Nature's Bounty$9.534.7★5,024 rev

Newest

by launch date

Iron Supplement for Women & Men | Iron Glycinate 50mg + Vitamin C Folic Acid 1000mcg Vitamin B12 | Anemia Relief Energy Boost & Immune Support | Gentle on Stomach Fast Absorption | 60 Softgels

New Elements$14.02164 rev

1y ago

Bronson Iron Bisglycinate 25 mg Gentle on The Stomach Supports Energy & Healthy Red Blood Cell Production - Non-Constipating Formula - Non GMO 90 Vegetarian Capsules

Bronson$9.971,387 rev

2y ago

Nutricost Iron Bisglycinate Supplement (25mg) 240 Capsules Gentle Iron

Nutricost$15.59288 rev

2y ago

XYMOGEN Iron Glycinate - Supports Hemoglobin & Iron Levels - Highly Absorbable Gentle Iron Supplement - Vegetarian Gluten-Free & Dairy-Free - 120 Capsules

XYMOGEN$26.23220 rev

3y ago

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

12y ago

What reviews say buyers love and hate about iron glycinate

What buyers praise and complain about, mined from review topics.

What buyers love

Iron23%

“Excellent Iron Product”

Quality-Overall15%

“No complaints so far”

Acid Regulator/Stomach Ache Relief10%

“Perfect for Sensitive Stomach's”

Regulates Digestion7%

“Easy to digest”

Vitamin4%

“Great supplement that does the best for me”

Advertised Vs Actual Product4%

“As advertised”

Efficiency3%

“Works well”

Ease Of Chewing/Swallowing3%

“Easy to swallow”

Side Effects3%

“No side Effects”

Value For Money3%

“Good Value”

What buyers complain about

Iron22%

“My Iron was low”

Acid Regulator/Stomach Ache Relief9%

“Severe discomfort, bloating and constipation”

Dosage7%

“For someone who finds 18 mg too low”

Regulates Digestion7%

“Acid reflux”

Size-Overall2%

“HUGE”

Allergies2%

“I somehow had an allergic reaction to pills too”

Value For Money2%

“Its not worth the 25 cent savings”

Advertised Vs Actual Product2%

“Misleading Item Description/Stomach upset”

Side Effects2%

“tells me that she can not take it because it made her horribly constipated”

Functionality-Overall2%

“The OTC ones were never effective”

Top return reasons

Iron31%

Value For Money13%

Certifications13%

Product Condition6%

Weight Light6%

Ease Of Use6%

Acid Regulator/Stomach Ache Relief6%

Strength6%

Dosage6%

Ingredients-Overall6%

Common iron glycinate questions

Is iron glycinate profitable to sell on Amazon United States?: The niche generates $146K/yr across 10 tracked products. 90-day search growth is +14.2%. Flapen's verdict: Skip it (45/100).
How competitive is the iron glycinate niche?: 8 brands and 57 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 92% of demand.
What do buyers complain about in iron glycinate?: Top complaints mined from reviews: Iron, Acid Regulator/Stomach Ache Relief, Dosage. The return rate is 0.0%.
When does demand for iron glycinate peak?: Demand peaks in Jan–Dec; the busiest month runs 2.8× the quietest.
What does it cost to enter the iron glycinate niche?: Listings span $6.42–$26.23; the average listing price is $14.97 (sweet spot $15–$100). The average incumbent carries 3,534 reviews — the moat a new listing must climb.