calcium magnesium zinc
Worth a lookShows low returns (0.0%), but a concentrated shelf (top 5 take 79% of clicks) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible12.6%search→purchase rate — share of searches ending in a sale
Market size
Great$1.5M$1.5M/yr · 740K searches
Avg price
Great$15.80avg listing price — sweet spot $15–$100
Price range
Good$5.32–$28.24cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Review moat
Bad6,431.08avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Growth
Bad-7.7%90-day search growth — must beat 0% to launch
Competition
Bad79%top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, calcium magnesium zinc is a $1.5M/yr Amazon United States market (740K searches/yr). The top 5 brands hold 79% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
calcium magnesium zinc market data
- Units sold / yr
- 100K–125K
- avg 6,000–8,000/product
- Revenue / yr
- $1.6M–$2.0M
- units × avg price
- Conversion rate
- 12.6%
- Avg BSR
- #164
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 83%
- Out of stock
- 0.0%
- Avg brand age
- 71 months
- Avg seller age
- 146 days
Competition & brand share
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.Brands
12 rising
Sellers
74
Top-5 brand share
79%
Top 20: 100%
Top-5 click share
79%
Top 20: 100%
Open market
17%
- Nature Made34%
- Nature's Bounty23%
- Qunol8%
- SOLARAY8%
- Nutricost6%
- Amazing Nutrition4%
- Open — no brand owns it (6 brands, 17%)
Demand & seasonality
Weekly Amazon search volume, last 99 weeks — -7.7% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 2.0×
Top calcium magnesium zinc search terms
- calcium magnesium zinc381K/yr
- calcium magnesium zinc d344K/yr
- calcio magnesio y zinc con vitamina d360K/yr
- magnesium calcium zinc supplement34K/yr
- cal mag zinc20K/yr
- nature made calcium magnesium zinc23K/yr
- calcium magnesium and zinc19K/yr
- magnesium calcium zinc14K/yr
- magnesium zinc calcium supplement19K/yr
- calcium magnesium zinc with vitamin d39K/yr
Top calcium magnesium 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.
All 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nature Made Calcium Magnesium Zinc with Vitamin D3 Dietary Calcium Supplement for Bone Support 300 Tablets
Nature Made$11.084.8★20,058 rev
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$5.324.7★23,123 rev
Qunol Calcium 3 in 1 Tablets with Calcium Magnesium & Zinc for Immune Support Bone Nerve and Muscle Health Supplement 270 Count
Qunol$18.154.7★3,224 rev
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$23.604.7★5,860 rev
Nutricost Calcium Magnesium & Zinc Tablets 1 415 mg 180 Tablets - Vitamin/Mineral Blend Supplement 60 Servings - Gluten Free Non-GMO
Nutricost$13.874.6★568 rev
Newest
by launch date
Allin1 Calcium Magnesium Zinc Supplement with Potassium Copper Strontium Silica Vitamin D3 K2 Boron Vitamin B1 B12 Red Clover Herb Alfalfa Basil Pills for Men & Women Clean Nutra Osteo Defend
Clean Nutraceuticals$28.24784 rev
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$17.61805 rev
Nutricost Calcium Magnesium & Zinc Tablets 1 415 mg 180 Tablets - Vitamin/Mineral Blend Supplement 60 Servings - Gluten Free Non-GMO
Nutricost$13.87568 rev
Qunol Calcium 3 in 1 Tablets with Calcium Magnesium & Zinc for Immune Support Bone Nerve and Muscle Health Supplement 270 Count
Qunol$18.153,224 rev
Calcium Magnesium Zinc with Vitamin D3 | Calcium Supplement | Calcium Magnesium Zinc | Calcium 600 mg with vitamin D3 | Calcium Magnesium Supplement + STS Sticker.
STS Home$18.41420 rev
Trending
90-day click momentumAllin1 Calcium Magnesium Zinc Supplement with Potassium Copper Strontium Silica Vitamin D3 K2 Boron Vitamin B1 B12 Red Clover Herb Alfalfa Basil Pills for Men & Women Clean Nutra Osteo Defend
Clean Nutraceuticals$28.244.6★
Calcium Magnesium Zinc with Vitamin D3 | Calcium Supplement | Calcium Magnesium Zinc | Calcium 600 mg with vitamin D3 | Calcium Magnesium Supplement + STS Sticker.
STS Home$18.414.7★
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$17.614.5★
Nutricost Calcium Magnesium & Zinc Tablets 1 415 mg 180 Tablets - Vitamin/Mineral Blend Supplement 60 Servings - Gluten Free Non-GMO
Nutricost$13.874.6★
Nature Made Calcium Magnesium Zinc with Vitamin D3 Dietary Calcium Supplement for Bone Support 300 Tablets
Nature Made$11.084.8★
What buyers say about calcium magnesium zinc
What buyers praise and complain about, mined from review topics.What buyers love
“They look as good as the more expensive brand”
“Good source of vitamins”
“GREAT PRICE”
“A Good Calcium”
“As advertised”
“This is the best for me because easy swallowing”
“this really really helped a lot especially with my joint pain too”
“Seems like it help”
“Nice supplement”
“the magnesium is really great for absorbing that”
What buyers complain about
“Wasnt swallow”
“Very large”
“Content of each is very low per dosage compared to other brands at the same cost”
“I can tell immediately when supplements dont actually contain the percentages of calcium they say”
“Vitamins r too big to swallow”
“Very bad batch here”
“It's REALLY expensive”
“They don't taste great”
“Magnesium citrate also causes loose stool”
“But this last batch is hard like it has bones in it or something”
Top return reasons
Common questions
- Is calcium magnesium zinc profitable to sell on Amazon United States?
- The niche generates $1.5M/yr across 12 tracked products. 90-day search growth is -7.7%. Flapen's verdict: Worth a look (53/100).
- How competitive is the calcium magnesium zinc niche?
- 12 brands and 74 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 79% of demand.
- What do buyers complain about in calcium magnesium zinc?
- Top complaints mined from reviews: Ease Of Chewing/Swallowing, Size-Overall, Dosage. The return rate is 0.0%.
- When does demand for calcium magnesium zinc peak?
- Demand is steady year-round — the busiest month runs 2.0× the quietest.
- What does it cost to enter the calcium magnesium zinc niche?
- Listings span $5.32–$28.24; the average listing price is $15.80 (sweet spot $15–$100). The average incumbent carries 6,431 reviews — the moat a new listing must climb.