Is calcium citrate magnesium and zinc profitable to sell on Amazon United States?

The niche generates $126K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +10.5%. Flapen's verdict: Skip it (42/100).

How competitive is the calcium citrate magnesium and zinc niche?

7 brands and 135 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 96% of demand.

What do buyers complain about in calcium citrate magnesium and zinc?

Top complaints mined from reviews: Size-Overall, Ease Of Chewing/Swallowing, Dosage. The return rate is 0.0%.

When does demand for calcium citrate magnesium and zinc peak?

Demand is steady year-round — the busiest month runs 2.1× the quietest.

What does it cost to enter the calcium citrate magnesium and zinc niche?

Listings span $5.32–$47.10; the average listing price is $19.13 (sweet spot $15–$100). The average incumbent carries 7,475 reviews — the moat a new listing must climb.

calcium citrate magnesium and zinc

Skip it

Brand-locked demand (top 5 brands take 96% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$19.13

avg listing price — sweet spot $15–$100

Conversion

Great7.4%

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

Price range

Great$5.32–$47.10

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

Growth

Okay+10.5%

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

Market size

Okay$126K

$126K/yr · 89K searches

Review moat

Bad7,475.31

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad80%

top-5 click share — a locked-up shelf

Brand share

Bad96%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, calcium citrate magnesium and zinc is a $126K/yr Amazon United States market (89K searches/yr). The top 5 brands hold 96% of demand. Verdict: Skip it — 42/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

calcium citrate magnesium and zinc market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: $115K–$153K; units × avg price
Conversion rate: 7.4%
Avg BSR: #328
Page quality: 0%
Prime: 54%
Sponsored: 46%
Out of stock: 0.4%
Avg brand age: 71 months
Avg seller age: 156 days

Competition & brand share

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 falling

Sellers

135

Top-5 brand share

96%

Top 20: 100%

Top-5 click share

80%

Top 20: 100%

Open market

KIRKLAND54%
Generic21%
Nature Made14%
Nature's Bounty4%
Qunol2%
SOLARAY2%
Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — +10.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 2.1×

Open Trend

Top calcium citrate magnesium and zinc search terms

kirkland calcium 600 mg with vitamin d313K/yr +53.8%5.1% conv.
kirkland calcium citrate magnesium and zinc27K/yr -23.3%9.1% conv.
calcium citrate magnesium and zinc18K/yr +16.0%5.4% conv.
kirkland calcium15K/yr +20.9%4.2% conv.
calcium citrate magnesium zinc6K/yr +49.9%2.0% conv.
calcium kirkland4K/yr +40.7%3.2% conv.
kirkland calcium citrate magnesium and zinc with vitamin d34K/yr -38.2%9.4% conv.
kirkland calcium citrate3K/yr +14.7%3.3% conv.

All search terms

Top calcium citrate magnesium and zinc 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.

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

All 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Kirkland Signature Calcium Citrate Magnesium and Zinc 500 Tablets

KIRKLAND$18.874.7★3,740 rev

Calcium Citrate 500mg with Magnesium Zinc and Vitamin D3 - Bone Strength & Immune Support Supplement - Supports Healthy Teeth & Muscle Contraction - USP Verified - 500 Tablets

Generic$30.664.8★6 rev

Nature Made Calcium Magnesium Zinc with Vitamin D3 Dietary Calcium Supplement for Bone Support 300 Tablets

Nature Made$11.084.8★20,058 rev

Kirkland Signature Chewable Calcium with Vitamin D3 Adult Gummies 120 ct x 1 Bottle

KIRKLAND$13.614.6★2,792 rev

Nature Made Calcium 600 mg with Vitamin D3 Dietary Supplement for Bone Support 220 Tablets

Nature Made$13.714.7★27,324 rev

Newest

by launch date

Calcium Citrate 500mg with Magnesium Zinc and Vitamin D3 - Bone Strength & Immune Support Supplement - Supports Healthy Teeth & Muscle Contraction - USP Verified - 500 Tablets

Generic$30.666 rev

5mo ago

Nutricost Calcium Magnesium & Zinc Tablets 1 415 mg 180 Tablets - Vitamin/Mineral Blend Supplement 60 Servings - Gluten Free Non-GMO

Nutricost$13.87568 rev

3y ago

Qunol Calcium 3 in 1 Tablets with Calcium Magnesium & Zinc for Immune Support Bone Nerve and Muscle Health Supplement 270 Count

Qunol$18.153,224 rev

3y ago

SOLARAY Calcium Magnesium Zinc Supplement - with Calcium 1000mg Magnesium 500mg - Bone Health Muscle Function Heart Health and Immune Support - Vegan 60 Day Guarantee 68 Servings 275 VegCaps

SOLARAY$23.605,860 rev

7y ago

Kirkland Signature Calcium Citrate Magnesium and Zinc 500 Tablets

KIRKLAND$18.873,740 rev

7y ago

What buyers say about calcium citrate magnesium and zinc

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

What buyers love

Quality-Overall17%

“Reliable product at a fair price”

Vitamin14%

“Good source of vitamins”

Calcium13%

“Calcium works well”

Value For Money13%

“Good deal”

Advertised Vs Actual Product7%

“As advertised”

Ease Of Chewing/Swallowing4%

“This is the best for me because easy swallowing”

Ease Of Use3%

“Ease of use”

Taste-Overall3%

“Gummies are great@ These chewables are great tasting”

Joint Pain3%

“Easy way to get bone help”

Efficiency2%

“Effective product”

What buyers complain about

Size-Overall14%

“pills were too big”

Ease Of Chewing/Swallowing11%

“Too chewy”

Dosage8%

“Dosages are to low which doesn't work”

Calcium7%

“Apparently low calcium is a thing”

Vitamin3%

“Vitamins r too big to swallow”

Taste-Overall3%

“Artificial after taste”

Value For Money3%

“It's REALLY expensive”

Absorbency3%

“I am reading that this combination shouldn't really be taken together because of absorption issues”

Ease Of Use3%

“the tablets a mess to handle”

Allergies2%

“I'm allergic and get severe migraine attacks”

Top return reasons

Calcium44%

Ease Of Chewing/Swallowing11%

Magnesium11%

Vitamin11%

Weight Heavy6%

Dosage6%

Size-Overall6%

Value For Money6%

Common questions

Is calcium citrate magnesium and zinc profitable to sell on Amazon United States?: The niche generates $126K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +10.5%. Flapen's verdict: Skip it (42/100).
How competitive is the calcium citrate magnesium and zinc niche?: 7 brands and 135 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 96% of demand.
What do buyers complain about in calcium citrate magnesium and zinc?: Top complaints mined from reviews: Size-Overall, Ease Of Chewing/Swallowing, Dosage. The return rate is 0.0%.
When does demand for calcium citrate magnesium and zinc peak?: Demand is steady year-round — the busiest month runs 2.1× the quietest.
What does it cost to enter the calcium citrate magnesium and zinc niche?: Listings span $5.32–$47.10; the average listing price is $19.13 (sweet spot $15–$100). The average incumbent carries 7,475 reviews — the moat a new listing must climb.