---
title: "Cal Mag Zinc — $66K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/cal-mag-zinc"
last_updated: "2026-08-10T20:34:41.594Z"
locale: en
meta:
description: "Niche score 47/100 · $66K/yr market · 33K searches/yr · $15.81 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $66K/yr market · 33K searches/yr · $15.81 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Cal Mag Zinc — $66K/yr Amazon US Niche (2026) - Flapen"
---
# **cal mag zinc**
**Skip it**
A small market ($66K/yr) — this niche doesn't clear our bar today.
Market size 17Growth 26Conversion 95Competition 30Returns 100Price range 68Avg price 77Brand share 54Review moat 24Quality gap 27
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.5%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$15.81**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$5.32–$35.67**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****73%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****67%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+0.5%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****4,993.06**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$66K**
$66K/yr · 33K searches
According to Flapen's Amazon United States niche tracking, cal mag zinc is a $66K/yr Amazon United States market (33K searches/yr). The top 5 brands hold 73% of demand. Verdict: Skip it — 47/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **cal mag zinc market data**
- **Units sold / yr**
- **4K–5K**
- avg 250–500/product
- **Revenue / yr**
- **$63K–$79K**
- units × avg price
- **Conversion rate**
- **12.5%**
- **Avg BSR**
- **#355**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **81%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **100 months**
- **Avg seller age**
- **163 days**
## **Competition & brand share**
The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▼falling
**Sellers**
**598**
**Top-5 brand share**
**73%**
Top 20: 100%
**Top-5 click share**
**67%**
Top 20: 100%
**Open market**
**22%**
- Nature Made23% - SOLARAY17% - Nature's Bounty16% - 365 by Whole Foods Market12% - Qunol6% - Nutricost5%
## **Demand & seasonality**
Weekly Amazon search volume, last 98 weeks — +0.5% search growth over the last 90 days.
800600Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/health-household/cal-mag-zinc/trend)
## **Top cal mag zinc search terms**
- **cal mag zinc**20K/yr+8.7%10.2% conv. - **cal mag zinc supplement**9K/yr-1.2%15.5% conv. - **cal mag zinc with vitamin d3**5K/yr-26.3%8.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/cal-mag-zinc/search-terms)
## **Top cal mag 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.
0%10%$7K20%$13K30%$20K40%$26K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nature Made Calcium Magnesium Zinc with Vitamin D3 Dietary Calcium Supplement for Bone Support 300 Tablets**Nature Made**$11.08**4.8★20,058 rev](https://www.amazon.com/dp/B000OD1F7U) [2**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**$23.60**4.7★5,860 rev](https://www.amazon.com/dp/B07T3PGKQP) [3**Natures Bounty Calcium Magnesium & Zinc Caplets Immune & Bone Health Daily Supplement 1000mg Calcium 400mg Magnesium 600 IU Vitamin D Gluten Free 100 Caplets**Nature's Bounty**$5.32**4.7★23,123 rev](https://www.amazon.com/dp/B002BXAMJS) [4**365 by Whole Foods Market Cal-Mag-Zinc with Vitamin D3 Vegetarian 180 Count**365 by Whole Foods Market**$20.26**4.4★357 rev](https://www.amazon.com/dp/B074KHWVGV) [5**Qunol Calcium 3 in 1 Tablets with Calcium Magnesium & Zinc for Immune Support Bone Nerve and Muscle Health Supplement 270 Count**Qunol**$18.15**4.7★3,224 rev](https://www.amazon.com/dp/B0CCK411P5)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vitamatic Calcium Magnesium Zinc D3 Boron | 365 Coated Tablets Supplement | Calcium 1200 mg Magnesium 420mg Zinc 25mg Vitamin D3 1000 IU Boron 1 mg | Non-GMO | Gluten Free | Made in USA**Vitamatic**$17.61**805 rev2y ago](https://www.amazon.com/dp/B0CXPDVRHT) [**Nutricost Calcium Magnesium & Zinc Tablets 1 415 mg 180 Tablets - Vitamin/Mineral Blend Supplement 60 Servings - Gluten Free Non-GMO**Nutricost**$13.87**568 rev3y ago](https://www.amazon.com/dp/B0CCZR81HQ) [**Qunol Calcium 3 in 1 Tablets with Calcium Magnesium & Zinc for Immune Support Bone Nerve and Muscle Health Supplement 270 Count**Qunol**$18.15**3,224 rev3y ago](https://www.amazon.com/dp/B0CCK411P5) [**365 by Whole Foods Market Cal-Mag-Zinc with Vitamin D3 Vegetarian 180 Count**365 by Whole Foods Market**$20.26**357 rev3y ago](https://www.amazon.com/dp/B074KHWVGV) [**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**$23.60**5,860 rev7y ago](https://www.amazon.com/dp/B07T3PGKQP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**#1 CAL MAG ZINC by Best Naturals - Essential Mineral Complex - Manufactured in a USA Based GMP Certified Facility and Third Party Tested for Purity. Guaranteed!! 180 Tablets**Best Naturals**$9.83**4.5★**▲ 74%**](https://www.amazon.com/dp/B00HS4ISVO) [**Trace Minerals | Liquid Cal/Mag/Zinc | Calcium Magnesium Zinc Vitamin D3 | Dietary Supplement Supports Tissue Muscle and Bone Density (30 Fl Oz Strawberry)**Trace Minerals**$35.67**4.3★**▲ 30%**](https://www.amazon.com/dp/B004TLN0SK) [**365 by Whole Foods Market Cal-Mag-Zinc with Vitamin D3 Vegetarian 90 Count**365 by Whole Foods Market**$14.04**4.5★**▲ 12%**](https://www.amazon.com/dp/B074H5H157) [**Nature Made Calcium Magnesium Zinc with Vitamin D3 Dietary Calcium Supplement for Bone Support 300 Tablets**Nature Made**$11.08**4.8★**▲ 11%**](https://www.amazon.com/dp/B000OD1F7U) [**Nb VIT Cal/Mag/Zinc Size 100s Natures Bounty Calcium-Magnesium-Zinc Caplets 100 Count**Nature's Bounty**$7.75**4.8★**— 4%**](https://www.amazon.com/dp/B01IAI0BV6)
**~~View all trending →~~**
## **What buyers say about cal mag zinc**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**17%
*“They look as good as the more expensive brand”*
**Vitamin**15%
*“Good source of vitamins”*
**Value For Money**13%
*“GREAT PRICE”*
**Calcium**9%
*“A Good Calcium”*
**Advertised Vs Actual Product**6%
*“As advertised”*
**Ease Of Chewing/Swallowing**4%
*“This is the best for me because easy swallowing”*
**Dosage**3%
*“reliable choice for my daily routine”*
**Efficiency**2%
*“Seems like it help”*
**Nutritional Content**2%
*“Nice supplement”*
**Taste-Overall**2%
*“Taste is pretty meh”*
### **What buyers complain about **
**Ease Of Chewing/Swallowing**17%
*“Wasnt swallow”*
**Size-Overall**14%
*“Very large”*
**Dosage**9%
*“anything over 600-800 IU is toxic”*
**Quality-Overall**4%
*“Very bad batch here”*
**Vitamin**4%
*“Vitamins r too big to swallow”*
**Calcium**4%
*“my calcium actually went down”*
**Hard Feel**3%
*“But this last batch is hard like it has bones in it or something”*
**Magnesium**2%
*“Magnesium citrate also causes loose stool”*
**Value For Money**2%
*“It's REALLY expensive”*
**Regulates Digestion**2%
*“It has caused problems with my thyroid”*
### **Top return reasons **
**Magnesium**29%
**Advertised Vs Actual Product**14%
**Value For Money**14%
**Vitamin**14%
**Ease Of Chewing/Swallowing**14%
**Calcium**14%
## **Common questions**
- **Is cal mag zinc profitable to sell on Amazon United States?**
- The niche generates $66K/yr across 16 tracked products. 90-day search growth is +0.5%. Flapen's verdict: Skip it (47/100).
- **How competitive is the cal mag zinc niche?**
- 14 brands and 598 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 73% of demand.
- **What do buyers complain about in cal mag zinc?**
- Top complaints mined from reviews: Ease Of Chewing/Swallowing, Size-Overall, Dosage. The return rate is 0.0%.
- **When does demand for cal mag zinc peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the cal mag zinc niche?**
- Listings span $5.32–$35.67; the average listing price is $15.81 (sweet spot $15–$100). The average incumbent carries 4,993 reviews — the moat a new listing must climb.
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