cal mag zinc
Skip itA small market ($66K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible12.5%search→purchase rate — share of searches ending in a sale
Avg price
Great$15.81avg listing price — sweet spot $15–$100
Price range
Good$5.32–$35.67cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good73%top-5 brand share — brands hold most of the demand
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Okay+0.5%90-day search growth — must beat 0% to launch
Review moat
Bad4,993.06avg 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
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.No pronounced peak months · busiest ÷ quietest = 1.3×
Top cal mag zinc search terms
- cal mag zinc20K/yr
- cal mag zinc supplement9K/yr
- cal mag zinc with vitamin d35K/yr
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.
All 16 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
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
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
365 by Whole Foods Market Cal-Mag-Zinc with Vitamin D3 Vegetarian 180 Count
365 by Whole Foods Market$20.264.4★357 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
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$17.61805 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
365 by Whole Foods Market Cal-Mag-Zinc with Vitamin D3 Vegetarian 180 Count
365 by Whole Foods Market$20.26357 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$23.605,860 rev
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$9.834.5★
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$35.674.3★
365 by Whole Foods Market Cal-Mag-Zinc with Vitamin D3 Vegetarian 90 Count
365 by Whole Foods Market$14.044.5★
Nature Made Calcium Magnesium Zinc with Vitamin D3 Dietary Calcium Supplement for Bone Support 300 Tablets
Nature Made$11.084.8★
Nb VIT Cal/Mag/Zinc Size 100s Natures Bounty Calcium-Magnesium-Zinc Caplets 100 Count
Nature's Bounty$7.754.8★
What buyers say about cal mag 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”
“reliable choice for my daily routine”
“Seems like it help”
“Nice supplement”
“Taste is pretty meh”
What buyers complain about
“Wasnt swallow”
“Very large”
“anything over 600-800 IU is toxic”
“Very bad batch here”
“Vitamins r too big to swallow”
“my calcium actually went down”
“But this last batch is hard like it has bones in it or something”
“Magnesium citrate also causes loose stool”
“It's REALLY expensive”
“It has caused problems with my thyroid”
Top return reasons
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.