---
title: "Calcium 1000mg — $114K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/calcium-1000mg"
last_updated: "2026-08-10T15:28:41.694Z"
locale: en
meta:
description: "Niche score 48/100 · $114K/yr market · 103K searches/yr · $18.04 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $114K/yr market · 103K searches/yr · $18.04 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Calcium 1000mg — $114K/yr Amazon US Niche (2026) - Flapen"
---
# **calcium 1000mg**
**Skip it**
A deep review moat (11,080 avg reviews) — this niche doesn't clear our bar today.
Market size 27Growth 23Conversion 68Competition 53Returns 100Price range 69Avg price 83Brand share 51Review moat 21Quality gap 25
**Returns**
**Incredible****0.0%**
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**
**Good****6.1%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$114K**
$114K/yr · 103K searches
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-4.3%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****11,080.1**
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 ~~](https://flapen.com/research/methodology)
## **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.
3K2KSpike '25Prime Day '25Holiday '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/health-household/calcium-1000mg/trend)
## **Top calcium 1000mg search terms**
- **calcium 1000mg**39K/yr-2.2%7.8% conv. - **calcium 1000 mg**14K/yr+26.0%4.6% conv. - **calcium 1000mg for women**14K/yr-28.7%6.3% conv. - **calcium 1000**9K/yr+4.0%7.1% conv. - **1000mg calcium**7K/yr+32.2%3.0% conv. - **calcium 1000 mg with vitamin d3**8K/yr-12.0%5.0% conv. - **1000 mg calcium**8K/yr-14.4%7.0% conv. - **calcium supplements for women 1000mg**5K/yr-59.8%5.5% conv. [**All search terms **](https://flapen.com/research/us/health-household/calcium-1000mg/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.
0%10%$11K20%$23K30%$34K40%$46K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**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**$7.79**4.6★43,244 rev](https://www.amazon.com/dp/B0016KITZ6) [2**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**$5.55**4.6★1,032 rev](https://www.amazon.com/dp/B000PSYXNM) [3**Solaray Calcium Citrate 1000mg - Chelated Calcium Supplement - Supports Bone Strength and Healthy Teeth - Easy to Digest - Vegan - 30 Servings 120 VegCaps**SOLARAY**$14.33**4.4★5,542 rev](https://www.amazon.com/dp/B0001VU13O) [4**Solaray Calcium Citrate 1000mg - Chelated Calcium Supplement - Supports Bone Strength and Healthy Teeth - Easy to Digest - Vegan - 68 Servings 275 VegCaps**SOLARAY**$23.29**4.4★5,542 rev](https://www.amazon.com/dp/B087YCD1QJ) [5**Natures Bounty Calcium 1200 mg with Vitamin D3 - Bone Health Softgels Calcium and Vitamin D Supplement 120 Ct (2-Pack)**Nature's Bounty**$15.36**4.6★43,244 rev](https://www.amazon.com/dp/B009IMJOO4)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Bronson Calcium 1200mg Per Serving Plus Vitamin D3 1000 IU High Potency Formula Non-GMO 120 Tablets**Bronson**$10.01**2,183 rev1y ago](https://www.amazon.com/dp/B0DGMNWWXM) [**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**$21.58**560 rev2y ago](https://www.amazon.com/dp/B0CTHC365H) [**Nutricost Calcium with Vitamin D 240 Tablets - Calcium (1200mg) Vitamin D (50mcg) Per Serving - Non-GMO Gluten Free**Nutricost**$15.70**2,356 rev5y ago](https://www.amazon.com/dp/B0988B9WH4) [**Calcium Citrate 1000mg | Healthy Bone & Teeth Support | High Absorption Cal Citrate | Gentle on Digestion | Vegan & Non-GMO | 3 Month Supply | Calcium Supplements for Women & Men | 365 Capsules**Purely Holistic**$25.73**2,308 rev6y ago](https://www.amazon.com/dp/B07Z3P7N1Z) [**Solaray Calcium Citrate 1000mg - Chelated Calcium Supplement - Supports Bone Strength and Healthy Teeth - Easy to Digest - Vegan - 68 Servings 275 VegCaps**SOLARAY**$23.29**5,542 rev6y ago](https://www.amazon.com/dp/B087YCD1QJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Natures Bounty Calcium 1200 mg with Vitamin D3 Bone Health & Immune Support Vitamin D3 1000 IU 220 Softgels**Nature's Bounty**$15.40**4.6★**▲ 92%**](https://www.amazon.com/dp/B002Q16VVS) [**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**$7.79**4.6★**▲ 80%**](https://www.amazon.com/dp/B0016KITZ6) [**Natures Bounty Calcium Plus 400 IU Vitamin D3 Immune Support & Bone Health 300 Tablets**Nature's Bounty**$15.92**4.7★**▲ 77%**](https://www.amazon.com/dp/B002FHL3DE) [**GNC Calcium Plus Magnesium & Vitamin D-3 1000mg Essential for Building Strong Bones 180 Count**GNC**$16.56**4.7★**▲ 52%**](https://www.amazon.com/dp/B084Z2J9YF) [**Solaray Calcium Citrate 1000mg - Chelated Calcium Supplement - Supports Bone Strength and Healthy Teeth - Easy to Digest - Vegan - 60 Servings 240 VegCaps**SOLARAY**$19.29**4.4★**▲ 46%**](https://www.amazon.com/dp/B00012NJIC)
**~~View all trending →~~**
## **What buyers say about calcium 1000mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Calcium**18%
*“Calcium works well”*
**Quality-Overall**15%
*“Excellent product”*
**Value For Money**11%
*“Good deal”*
**Vitamin**11%
*“Great value and vitamins”*
**Ease Of Chewing/Swallowing**8%
*“not hard to swallow”*
**Advertised Vs Actual Product**6%
*“As advertised”*
**Ease Of Use**4%
*“Ease of use”*
**Efficiency**2%
*“seem to be doing well”*
**Taste-Overall**2%
*“Great taste”*
**Dosage**2%
*“Good quality and correct dosage”*
### **What buyers complain about **
**Size-Overall**24%
*“Very large pills”*
**Ease Of Chewing/Swallowing**15%
*“Impossible to swallow”*
**Calcium**7%
*“NOT CALCIUM CITRATE”*
**Dosage**7%
*“so it is not the just the dosage”*
**Vitamin**5%
*“Wrong vitamins, as I can't swallow that type”*
**Value For Money**3%
*“It's REALLY expensive”*
**Smell**2%
*“Horribly strong odor”*
**Acid Regulator/Stomach Ache Relief**2%
*“upset my stomach”*
**Quality-Overall**1%
*“I should have paid more attention to all of the reviews”*
**Regulates Digestion**1%
*“Rough in my gut”*
### **Top return reasons **
**Calcium**32%
**Size-Overall**21%
**Ease Of Chewing/Swallowing**12%
**Value For Money**7%
**Vitamin**7%
**Dosage**5%
**Vegan/Organic**2%
**Ingredients-Overall**2%
**Acid Regulator/Stomach Ache Relief**2%
**Advertised Vs Actual Product**2%
## **Common questions**
- **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.
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