---
title: "Calcium Magnesium Citrate — $36K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/calcium-magnesium-citrate"
last_updated: "2026-08-10T17:43:56.517Z"
locale: en
meta:
description: "Niche score 56/100 · $36K/yr market · 31K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 56/100 · $36K/yr market · 31K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Calcium Magnesium Citrate — $36K/yr Amazon US Niche (2026) - Flapen"
---
# **calcium magnesium citrate**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 9Growth 49Conversion 63Competition 81Returns 100Price range 76Avg price 89Brand share 62Review moat 38Quality gap 25
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$20.77**
avg listing price — sweet spot $15–$100
**Competition**
**Great****34%**
top-5 click share — an open shelf
**Price range**
**Great****$5.33–$46.71**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****5.6%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****68%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+19.3%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****2,720.98**
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****$36K**
$36K/yr · 31K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, calcium magnesium citrate is a $36K/yr Amazon United States market (31K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Jun. Verdict: Worth a look — 56/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **calcium magnesium citrate market data**
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$42K–$52K**
- units × avg price
- **Conversion rate**
- **5.6%**
- **Avg BSR**
- **#468**
- **Page quality**
- **0%**
- **Prime**
- **93%**
- **Sponsored**
- **71%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **91 months**
- **Avg seller age**
- **162 days**
## **Competition & brand share**
Clicks spread well past the top 5 (34% combined) — an open shelf where new products get seen.
**Brands**
**19 **▲rising
**Sellers**
**665**
**Top-5 brand share**
**68%**
Top 20: 100%
**Top-5 click share**
**34%**
Top 20: 79%
**Open market**
**26%**
- SOLARAY19% - Pure Encapsulations15% - Solgar12% - NOW Foods11% - BlueBonnet10% - Carlyle6%
## **Demand & seasonality**
Weekly Amazon search volume, last 102 weeks — +19.3% search growth over the last 90 days.
3K2KSpike '24Black Friday '24Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jun · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/health-household/calcium-magnesium-citrate/trend)
## **Top calcium magnesium citrate search terms**
- **calcium magnesium citrate**13K/yr+31.4%4.8% conv. - **calcium magnesium citrate with vitamin d3**5K/yr+55.9%0.8% conv. - **calcium citrate with magnesium**6K/yr-1.4%3.7% conv. - **calcium citrate magnesium**4K/yr-4.2%7.1% conv. - **cal mag citrate**3K/yr-4.6%16.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/calcium-magnesium-citrate/search-terms)
## **Top calcium magnesium citrate 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%3%$1K6%$2K9%$3K12%$4K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Pure Encapsulations Calcium Magnesium (Citrate) - 240 g Calcium & 240 g Magnesium - Bone Health Support* - Non-GMO & Vegan - 180 Capsules**Pure Encapsulations**$32.85**4.7★1,103 rev](https://www.amazon.com/dp/B000H83T8A) [2**NOW Foods Supplements Calcium & Magnesium 2:1 Ratio High Potency Supports Bone Health* 250 Tablets**NOW Foods**$17.85**4.6★6,215 rev](https://www.amazon.com/dp/B00028LZ9A) [3**Carlyle Calcium Magnesium Citrate with Vitamin D3 | 150 Capsules**Carlyle**$9.69**4.7★135 rev](https://www.amazon.com/dp/B0D3M95NNQ) [4**Solgar Calcium Magnesium with Vitamin D3 300 Tablets - Promotes Healthy Bones Supports Nerve & Muscle Function - Highly Absorbable Form - Non-GMO and Gluten Free - 60 Servings**Solgar**$22.60**4.7★1,637 rev](https://www.amazon.com/dp/B000Z8WXW0) [5**Swanson Calcium Citrate Plus Magnesium - Mineral Supplement Promoting Strong Bones Energy Production & Muscle Relaxation - May Support Cardiovascular Health - (150 Capsules)**Swanson**$12.56**4.6★244 rev](https://www.amazon.com/dp/B00068TUZW)
**~~View all top sellers →~~**
### **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**$30.70**8 rev5mo ago](https://www.amazon.com/dp/B0GNP6JPHT) [**Carlyle Calcium Magnesium Citrate with Vitamin D3 | 150 Capsules**Carlyle**$9.69**135 rev2y ago](https://www.amazon.com/dp/B0D3M95NNQ) [**Solaray Calcium Magnesium Citrate 1000mg 1:1 Ratio Bone Strength Supplement Muscle Nerve and Bone Health Support Chelated for High Absorption 60-Day Guarantee 45 Servings 270 VegCaps**SOLARAY**$21.31**590 rev3y ago](https://www.amazon.com/dp/B0BQSQKKZ7) [**Pure Encapsulations Calcium Magnesium (Citrate) - 240 g Calcium & 240 g Magnesium - Bone Health Support* - Non-GMO & Vegan - 90 Capsules**Pure Encapsulations**$18.95**1,103 rev6y ago](https://www.amazon.com/dp/B07QYCWF32) [**Kirkland Signature Calcium Citrate Magnesium and Zinc 500 Tablets**KIRKLAND**$18.87**3,741 rev7y ago](https://www.amazon.com/dp/B07N798Y1J)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Calcium Citrate 500mg with Magnesium Zinc and Vitamin D3 - Bone Strength & Immune Support Supplement - Supports Healthy Teeth & Muscle Contraction - USP Verified - 500 Tablets**Generic**$30.70**4.8★**▲ 282%**](https://www.amazon.com/dp/B0GNP6JPHT) [**SOLARAY Calcium Magnesium Citrate 2 to 1 Ratio 180 VegCaps**SOLARAY**$20.69**4.7★**▲ 211%**](https://www.amazon.com/dp/B000A47UPY) [**Solgar Calcium Magnesium Citrate 250 Tablets (Pack of 2) - Supports Healthy Bones & Teeth - Musculoskeletal & Nervous System Support - Highly Absorbable - Non-GMO and Vegan - 100 Total Servings**Solgar**$46.71**4.7★**▲ 135%**](https://www.amazon.com/dp/B003LTZ8YU) [**Kirkland Signature Calcium Citrate Magnesium and Zinc 500 Tablets**KIRKLAND**$18.87**4.7★**▲ 69%**](https://www.amazon.com/dp/B07N798Y1J) [**Bluebonnet Calcium Plus Magnesium Caplets 180 Count**BlueBonnet**$25.99**4.4★**▲ 54%**](https://www.amazon.com/dp/B000I4C2RC)
**~~View all trending →~~**
## **What buyers say about calcium magnesium citrate**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**17%
*“Excellent, clean, well-made supplement”*
**Calcium**15%
*“A Good Calcium”*
**Vitamin**10%
*“Good vitamin”*
**Value For Money**8%
*“Great Value”*
**Ease Of Chewing/Swallowing**6%
*“This is the best for me because easy swallowing”*
**Taste-Overall**4%
*“The flavor tastes like Blueberry”*
**Advertised Vs Actual Product**4%
*“As advertised”*
**Ease Of Use**3%
*“Easy to use”*
**Joint Pain**2%
*“this really really helped a lot especially with my joint pain too”*
**Efficiency**2%
*“very effective”*
### **What buyers complain about **
**Ease Of Chewing/Swallowing**13%
*“Pretty tough chew”*
**Size-Overall**13%
*“But smaller isnt always better”*
**Calcium**10%
*“I need calcium”*
**Dosage**7%
*“Content of each is very low per dosage compared to other brands at the same cost”*
**Taste-Overall**5%
*“It tastes disgusting”*
**Value For Money**5%
*“Overpriced”*
**Acid Regulator/Stomach Ache Relief**2%
*“stomach pains”*
**Vitamin**2%
*“I cant take theses huge vitamins”*
**Quality-Overall**2%
*“Very bad batch here”*
**Thickness**2%
*“Pills are very chunky”*
### **Top return reasons **
**Calcium**22%
**Magnesium**20%
**Vitamin**14%
**Ingredients-Overall**9%
**Regulates Digestion**7%
**Advertised Vs Actual Product**5%
**Value For Money**5%
**Nutritional Content**5%
**Functionality-Overall**5%
**Flavor**5%
## **Common questions**
- **Is calcium magnesium citrate profitable to sell on Amazon United States?**
- The niche generates $36K/yr across 41 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +19.3%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the calcium magnesium citrate niche?**
- 19 brands and 665 sellers compete. The top 5 products take 34% of clicks and top 5 brands hold 68% of demand.
- **What do buyers complain about in calcium magnesium citrate?**
- Top complaints mined from reviews: Ease Of Chewing/Swallowing, Size-Overall, Calcium. The return rate is 0.0%.
- **When does demand for calcium magnesium citrate peak?**
- Demand peaks in Jun; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the calcium magnesium citrate niche?**
- Listings span $5.33–$46.71; the average listing price is $20.77 (sweet spot $15–$100). The average incumbent carries 2,721 reviews — the moat a new listing must climb.
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