Is calcium 1000mg profitable to sell on Amazon United States?

The niche generates $114K/yr across 21 tracked products. 90-day search growth is -4.3%. Flapen's verdict: Skip it (48/100).

How competitive is the calcium 1000mg niche?

14 brands and 124 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 74% of demand.

What do buyers complain about in calcium 1000mg?

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

When does demand for calcium 1000mg peak?

Demand is steady year-round — the busiest month runs 1.6× the quietest.

What does it cost to enter the calcium 1000mg niche?

Listings span $5.32–$36.27; the average listing price is $18.04 (sweet spot $15–$100). The average incumbent carries 11,080 reviews — the moat a new listing must climb.

calcium 1000mg

Skip it

A deep review moat (11,080 avg reviews) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$18.04

avg listing price — sweet spot $15–$100

Price range

Good$5.32–$36.27

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

Conversion

Good6.1%

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

Competition

Good53%

top-5 click share — leaders hold, buyers still browse

Brand share

Good74%

top-5 brand share — brands hold most of the demand

Market size

Okay$114K

$114K/yr · 103K searches

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-4.3%

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

Review moat

Bad11,080.1

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, calcium 1000mg is a $114K/yr Amazon United States market (103K searches/yr). The top 5 brands hold 74% of demand. Verdict: Skip it — 48/100.

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

calcium 1000mg market data

Units sold / yr: 6K–8K; avg 100–250/product
Revenue / yr: $108K–$144K; units × avg price
Conversion rate: 6.1%
Avg BSR: #835
Page quality: 0%
Prime: 100%
Sponsored: 86%
Out of stock: 0.2%
Avg brand age: 84 months
Avg seller age: 156 days

Competition & brand share

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 falling

Sellers

124

Top-5 brand share

74%

Top 20: 100%

Top-5 click share

53%

Top 20: 99%

Open market

21%

Nature's Bounty35%
SOLARAY18%
21st Century10%
Pure Encapsulations6%
KAL6%
GNC5%

Demand & seasonality

Weekly Amazon search volume, last 101 weeks — -4.3% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.6×

Open Trend

Top calcium 1000mg search terms

calcium 1000mg39K/yr -2.2%7.8% conv.
calcium 1000 mg14K/yr +26.0%4.6% conv.
calcium 1000mg for women14K/yr -28.7%6.3% conv.
calcium 10009K/yr +4.0%7.1% conv.
1000mg calcium7K/yr +32.2%3.0% conv.
calcium 1000 mg with vitamin d38K/yr -12.0%5.0% conv.
1000 mg calcium8K/yr -14.4%7.0% conv.
calcium supplements for women 1000mg5K/yr -59.8%5.5% conv.

All search terms

Top calcium 1000mg 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 21 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Natures Bounty Calcium 1200 mg with 1000 IU Vitamin D3 - Bone Health Softgels Calcium and Vitamin D Supplement Gluten Free 2 Softgels per Day 120 ct (Pack of 1)

Nature's Bounty$7.794.6★43,244 rev

21st Century Calcium Plus D3 Tablets (90 Count) 1000mg Calcium with Vitamin D3 20mcg (800 IU) Gluten-Free & Non-GMO Bone Health Supplement for Men & Women No Added Yeast or Artificial Flavors

21st Century$5.554.6★1,032 rev

Solaray Calcium Citrate 1000mg - Chelated Calcium Supplement - Supports Bone Strength and Healthy Teeth - Easy to Digest - Vegan - 30 Servings 120 VegCaps

SOLARAY$14.334.4★5,542 rev

Solaray Calcium Citrate 1000mg - Chelated Calcium Supplement - Supports Bone Strength and Healthy Teeth - Easy to Digest - Vegan - 68 Servings 275 VegCaps

SOLARAY$23.294.4★5,542 rev

Natures Bounty Calcium 1200 mg with Vitamin D3 - Bone Health Softgels Calcium and Vitamin D Supplement 120 Ct (2-Pack)

Nature's Bounty$15.364.6★43,244 rev

Newest

by launch date

Bronson Calcium 1200mg Per Serving Plus Vitamin D3 1000 IU High Potency Formula Non-GMO 120 Tablets

Bronson$10.012,183 rev

1y ago

duwhot Calcium Citrate Gummies Chewable Calcium Citrate 1000mg For Bone Muscle & Immune Support High Absorption Calcium Supplements for Women & Men Kids Blueberry Flavor Vegan Organic 60 Chews

duwhot$21.58560 rev

2y ago

Nutricost Calcium with Vitamin D 240 Tablets - Calcium (1200mg) Vitamin D (50mcg) Per Serving - Non-GMO Gluten Free

Nutricost$15.702,356 rev

5y ago

Purely Holistic$25.732,308 rev

6y ago

Solaray Calcium Citrate 1000mg - Chelated Calcium Supplement - Supports Bone Strength and Healthy Teeth - Easy to Digest - Vegan - 68 Servings 275 VegCaps

SOLARAY$23.295,542 rev

6y ago

What buyers say about calcium 1000mg

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

What buyers love

Calcium18%

“Calcium works well”

Quality-Overall15%

“Excellent product”

Value For Money11%

“Good deal”

Vitamin11%

“Great value and vitamins”

Ease Of Chewing/Swallowing8%

“not hard to swallow”

Advertised Vs Actual Product6%

“As advertised”

Ease Of Use4%

“Ease of use”

Efficiency2%

“seem to be doing well”

Taste-Overall2%

“Great taste”

Dosage2%

“Good quality and correct dosage”

What buyers complain about

Size-Overall24%

“Very large pills”

Ease Of Chewing/Swallowing15%

“Impossible to swallow”

Calcium7%

“NOT CALCIUM CITRATE”

Dosage7%

“so it is not the just the dosage”

Vitamin5%

“Wrong vitamins, as I can't swallow that type”

Value For Money3%

“It's REALLY expensive”

Smell2%

“Horribly strong odor”

Acid Regulator/Stomach Ache Relief2%

“upset my stomach”

Quality-Overall1%

“I should have paid more attention to all of the reviews”

Regulates Digestion1%

“Rough in my gut”

Top return reasons

Calcium32%

Size-Overall21%

Ease Of Chewing/Swallowing12%

Value For Money7%

Vitamin7%

Dosage5%

Vegan/Organic2%

Ingredients-Overall2%