---
title: "Calcium Without Vitamin D — $76K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/calcium-without-vitamin-d"
last_updated: "2026-08-05T21:18:13.188Z"
locale: en
meta:
description: "Niche score 52/100 · $76K/yr market · 59K searches/yr · $18.91 avg price. A small market ($76K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $76K/yr market · 59K searches/yr · $18.91 avg price. A small market ($76K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Calcium Without Vitamin D — $76K/yr Amazon US Niche (2026) - Flapen"
---
# **calcium without vitamin d**
**Worth a look**
Shows low returns (0.0%), but a small market ($76K/yr) keeps it on the watch list.
Market size 19Growth 39Conversion 74Competition 49Returns 100Price range 73Avg price 85Brand share 65Review moat 28Quality gap 25
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$18.91**
avg listing price — sweet spot $15–$100
**Conversion**
**Good****6.9%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$5.93–$39.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****66%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****55%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+10.9%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****3,655.39**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$76K**
$76K/yr · 59K searches
According to Flapen's Amazon United States niche tracking, calcium without vitamin d is a $76K/yr Amazon United States market (59K searches/yr). The top 5 brands hold 66% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **calcium without vitamin d market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$57K–$76K**
- units × avg price
- **Conversion rate**
- **6.9%**
- **Avg BSR**
- **#170**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **70%**
- **Out of stock**
- **0.4%**
- **Avg brand age**
- **96 months**
- **Avg seller age**
- **153 days**
## **Competition & brand share**
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▼falling
**Sellers**
**115**
**Top-5 brand share**
**66%**
Top 20: 100%
**Top-5 click share**
**55%**
Top 20: 96%
**Open market**
**29%**
- 21st Century25% - Pure Encapsulations17% - SOLARAY12% - Generic6% - Zoo Med5% - MAJOR5%
## **Demand**
Weekly Amazon search volume, last 19 weeks — +10.9% search growth over the last 90 days.
1K750Mar '26Apr '26Apr '26May '26Jun '26Jun '26
[**Open Trend **](https://flapen.com/research/us/health-household/calcium-without-vitamin-d/trend)
## **Top calcium without vitamin d search terms**
- **calcium without d3**16K/yr+37.8%6.9% conv. - **calcium without vitamin d**20K/yr-14.1%5.1% conv. - **calcium only supplement**6K/yr-4.7%5.6% conv. - **plain calcium**4K/yr+77.1%0.3% conv. - **calcium without vitamin d3**6K/yr-6.3%5.9% conv. - **calcium only**4K/yr+13.5%4.5% conv. - **calcium no vitamin d**3K/yr+28.5%9.9% conv. [**All search terms **](https://flapen.com/research/us/health-household/calcium-without-vitamin-d/search-terms)
## **Top calcium without vitamin d 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%$8K20%$15K30%$23K40%$31K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**21st Century Calcium 600 mg Supplement (400 Tablets) Vegan-Friendly Bone Strength Calcium Supplement Non-GMO & Gluten-Free Calcium Carbonate No Artificial Flavors Suitable for Men & Women**21st Century**$11.90**4.7★6,539 rev](https://www.amazon.com/dp/B00M5TZ1F8) [2**Pure Encapsulations Calcium (Citrate) - Supplement for Bone Teeth Colon and Cardiovascular Health Support* - with Premium Calcium Citrate - 60 Capsules**Pure Encapsulations**$13.27**4.7★5,961 rev](https://www.amazon.com/dp/B0BKNL1XDS) [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**Zoo Med Reptile Calcium without Vitamin D3 8-Ounce**Zoo Med**$7.69**4.7★6,055 rev](https://www.amazon.com/dp/B000UJPHL8) [5**Pure Encapsulations Calcium (Citrate) - Supplement for Bone Teeth Colon and Cardiovascular Health Support* - with Premium Calcium Citrate - 180 Capsules**Pure Encapsulations**$31.39**4.7★5,961 rev](https://www.amazon.com/dp/B00172XUWU)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Pure Calcium Citrate 1200 mg Gummies for Adults Kids High Absorption Calcium Supplements for Women & Men Sugar Free Non-GMO Gluten Free Supports Bone Teeth Muscle & Immune - Peach Flavor 2 pack.**Herbance**$29.47**139 rev1y ago](https://www.amazon.com/dp/B0FC6GYTBK) [**FREEDA Calcium 600 mg Bone Joint and Teeth Support 600mg Pure Calcium Supplements for Women & Men Healthy Muscle and Nerve Function GF Easy-to-Swallow Coated Tablets (100 Ct)**FREEDA**$15.62**39 rev1y ago](https://www.amazon.com/dp/B0F89M3K56) [![NatureWise Calcium Citrate 500mg Capsules - Supplement for Bone Health - Easy to Digest & Absorb - Vegan Non-GMO Gluten-Free - 90 Count[30-Day Supply]](https://m.media-amazon.com/images/I/41Vw+Hdvp6L.jpg)**NatureWise Calcium Citrate 500mg Capsules - Supplement for Bone Health - Easy to Digest & Absorb - Vegan Non-GMO Gluten-Free - 90 Count\[30-Day Supply\]**NatureWise**$13.79**403 rev1y ago](https://www.amazon.com/dp/B0DZFNVP7T) [**Calcium Citrate 600mg Tablets - Pure Calcium Citrate Supplement 300 Count - Supports Bone Health and Wellness Citrato de Calcio High Absorption Calcium 600 mg**Generic**$24.96**132 rev1y ago](https://www.amazon.com/dp/B0DMWJTSZP) [**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)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**FREEDA Calcium 600 mg Bone Joint and Teeth Support 600mg Pure Calcium Supplements for Women & Men Healthy Muscle and Nerve Function GF Easy-to-Swallow Coated Tablets (100 Ct)**FREEDA**$15.62**4.5★**▲ 173%**](https://www.amazon.com/dp/B0F89M3K56) [**Calciven Natural Bone Support Supplement Vegetarian Gluten-Free**Calciven**$39.21**4.4★**▲ 136%**](https://www.amazon.com/dp/B08Y7DFQYC) [**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★**▲ 77%**](https://www.amazon.com/dp/B00012NJIC) [**Spring - Valley Calcium 600mg Natural Bone Health Calcium - 100 Tablets Pack of 3**Generic**$30.82**4.7★**▲ 69%**](https://www.amazon.com/dp/B09XJKD9FY) [**Zoo Med Reptile Calcium without Vitamin D3 8-Ounce**Zoo Med**$7.69**4.7★**▲ 50%**](https://www.amazon.com/dp/B000UJPHL8)
**~~View all trending →~~**
## **What buyers say about calcium without vitamin d**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Calcium**19%
*“Excellent calcium supplement”*
**Quality-Overall**16%
*“Excellent product”*
**Value For Money**9%
*“DECENT PRICE”*
**Vitamin**8%
*“Good vitamin”*
**Ease Of Chewing/Swallowing**7%
*“Chewables are the answer”*
**Advertised Vs Actual Product**7%
*“As advertised”*
**Ease Of Use**4%
*“Ease of use”*
**Joint Pain**3%
*“Most effective for bone support”*
**Taste-Overall**2%
*“Great blueberry taste”*
**Efficiency**2%
*“Effective”*
### **What buyers complain about **
**Calcium**15%
*“Not enough calcium for me”*
**Dosage**10%
*“Those supplements are low-dose”*
**Size-Overall**8%
*“Very large pill”*
**Value For Money**6%
*“Expensive”*
**Ease Of Chewing/Swallowing**6%
*“so I wasn't really keen on swallow it”*
**Acid Regulator/Stomach Ache Relief**5%
*“upset my stomach”*
**Vitamin**3%
*“Wrong vitamins, as I can't swallow that type”*
**Regulates Digestion**2%
*“caused significant constipation”*
**Side Effects**2%
*“experiencing clarity side effects”*
**Advertised Vs Actual Product**2%
*“Deceptive Marketing”*
### **Top return reasons **
**Calcium**51%
**Vitamin**12%
**Size-Overall**8%
**Ease Of Chewing/Swallowing**8%
**Advertised Vs Actual Product**4%
**Dosage**4%
**Value For Money**4%
**Regulates Digestion**4%
**Smell**2%
**Hard Feel**1%
## **Common questions**
- **Is calcium without vitamin d profitable to sell on Amazon United States?**
- The niche generates $76K/yr across 23 tracked products. 90-day search growth is +10.9%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the calcium without vitamin d niche?**
- 18 brands and 115 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 66% of demand.
- **What do buyers complain about in calcium without vitamin d?**
- Top complaints mined from reviews: Calcium, Dosage, Size-Overall. The return rate is 0.0%.
- **What does it cost to enter the calcium without vitamin d niche?**
- Listings span $5.93–$39.21; the average listing price is $18.91 (sweet spot $15–$100). The average incumbent carries 3,655 reviews — the moat a new listing must climb.
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