---
title: "Magnesium 200mg — $219K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/health-household/magnesium-200mg"
last_updated: "2026-08-12T15:16:22.687Z"
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description: "Amazon product research for magnesium 200mg: $219K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for magnesium 200mg: $219K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Magnesium 200mg — $219K/mo Amazon US Product Research (2026)"
---
# **Magnesium 200mg**
**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 96Growth 24Conversion 96Competition 33Returns 100Price range 77Avg price 84Brand share 28Review moat 19Quality gap 23
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****$2.6M**
$2.6M/yr · 1.1M searches
**Conversion**
**Incredible****13.1%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$18.72**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$6.57–$45.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****65%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****88%**
top-5 brand share — brands hold most of the demand
**Growth**
**Bad****-2.3%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****15,126.89**
avg incumbent reviews — the moat a new listing must climb
## **Is magnesium 200mg profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, magnesium 200mg is a $2.6M/yr Amazon United States market (1.1M searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 56/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **magnesium 200mg market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **125K–150K**
- avg 6,000–8,000/product
- **Revenue / yr**
- **$2.3M–$2.8M**
- units × avg price
- **Conversion rate**
- **13.1%**
- **Avg BSR**
- **#152**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **84%**
- **Out of stock**
- **0.8%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **145 days**
## **Competition: brands, sellers & click share**
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▲rising
**Sellers**
**104**
**Top-5 brand share**
**88%**
Top 20: 100%
**Top-5 click share**
**65%**
Top 20: 100%
**Open market**
**9%**
- Nature Made58% - Bronson12% - Pure Encapsulations9% - Nature's Bounty5% - Health Thru Nutrition5% - Pure Micronutrients3% - Open — no brand owns it (6 brands, 9%)
## **magnesium 200mg demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -2.3% search growth over the last 90 days.
30K20KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/health-household/magnesium-200mg/trend)
## **Top magnesium 200mg search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **magnesium glycinate 200mg**485K/yr-12.3%11.4% conv. - **nature made magnesium glycinate**256K/yr+10.0%11.1% conv. - **magnesium glycinate nature made**66K/yr+8.4%11.5% conv. - **magnesium glycinate 200 mg**55K/yr+8.4%9.7% conv. - **magnesium 200mg**37K/yr-2.4%6.7% conv. - **natures made magnesium glycinate**26K/yr+4.9%10.0% conv. - **nature made magnesium glycinate 200 mg**20K/yr+9.3%15.7% conv. - **magnesium glycinate 200**21K/yr-6.0%10.2% conv. - **naturemade magnesium glycinate**18K/yr+4.7%11.3% conv. - **magnesium glycinate 200mg capsules**14K/yr+33.1%6.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/magnesium-200mg/search-terms)
## **Top magnesium 200mg products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$131K10%$263K15%$394K20%$526K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nature Made Magnesium Glycinate 200 mg per Serving 180 Capsules**Nature Made**$30.55**4.6★21,706 rev](https://www.amazon.com/dp/B086RQVNDV) [2**Nature Made Magnesium Glycinate 200 mg per Serving 60 Capsules**Nature Made**$11.73**4.6★21,706 rev](https://www.amazon.com/dp/B08XXHCGZT) [3**Nature Made Magnesium Glycinate 300 mg per 3 Capsules 90 Capsules**Nature Made**$21.13**4.7★2,683 rev](https://www.amazon.com/dp/B0D9MV3YJQ) [4**Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief Sleep Heart Health Nerves Muscles and Metabolism* - with Magnesium Glycinate - 90 Capsules**Pure Encapsulations**$26.10**4.7★49,969 rev](https://www.amazon.com/dp/B07P5K7DQP) [5**Bronson Magnesium Glycinate 200 MG Chelated High Absorption 120 Capsules**Bronson**$14.62**4.7★4,875 rev](https://www.amazon.com/dp/B0CTQZSTLQ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Nature Made Magnesium + Ashwagandha Capsules 60 Capsules**Nature Made**$11.06**107 rev5mo ago](https://www.amazon.com/dp/B0GN4WDMQ4) [**THORNE - Magnesium Glycinate - Supports Restful Sleep Muscle Relaxation Heart Health & Metabolism* - Chelated Magnesium Capsules - Third-Party Certified - Gluten Dairy & Soy-Free - 90 Servings**THORNE**$25.39**2,847 rev1y ago](https://www.amazon.com/dp/B0F5XYHRPV) [**Magnesium Glycinate 1540mg -200mg Elemental Magnesium Supplement 100% Pure**Health Thru Nutrition**$9.91**708 rev1y ago](https://www.amazon.com/dp/B0F4SS6LRF) [**Natures Bounty High Absorption Magnesium Glycinate 240 mg for Supporting Muscle Relaxation and Bone Heart & Nerve Health Non-GMO Gluten-Free Vegetarian 120 Count/60 Servings**Nature's Bounty**$15.65**5,675 rev1y ago](https://www.amazon.com/dp/B0DT1JKGPH) [**Nature Made Magnesium Glycinate 300 mg per 3 Capsules 90 Capsules**Nature Made**$21.13**2,683 rev1y ago](https://www.amazon.com/dp/B0D9MV3YJQ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Nature Made Magnesium + Ashwagandha Capsules 60 Capsules**Nature Made**$11.06**4.3★**▲ 212%**](https://www.amazon.com/dp/B0GN4WDMQ4) [**Nutricost Magnesium Glycinate Capsules 180 Capsules 210mg**Nutricost**$15.43**4.7★**▲ 49%**](https://www.amazon.com/dp/B0CV2RSRFX) [**Nature Made Magnesium Glycinate 300 mg per 3 Capsules 90 Capsules**Nature Made**$21.13**4.7★**▲ 31%**](https://www.amazon.com/dp/B0D9MV3YJQ) [**Nature Made High Absorption Magnesium Glycinate Gummies 40 Count**Nature Made**$12.18**4.6★**▲ 30%**](https://www.amazon.com/dp/B0CBVZ9B2G) [**Magnesium Glycinate 1540mg -200mg Elemental Magnesium Supplement 100% Pure**Health Thru Nutrition**$9.91**4.5★**▲ 15%**](https://www.amazon.com/dp/B0F4SS6LRF)
**~~View all trending →~~**
## **What reviews say buyers love and hate about magnesium 200mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**23%
*“More deep sleep”*
**Quality-Overall**17%
*“The quality is solid”*
**Magnesium**12%
*“Best Magnesium Product”*
**Value For Money**5%
*“price was fair”*
**Advertised Vs Actual Product**4%
*“As advertised”*
**Vitamin**3%
*“I love Pure Vitamins”*
**Muscle Pain Relief**3%
*“Eases muscle cramping”*
**Stress/Anxiety**3%
*“less stress”*
**Efficiency**3%
*“Works perfectly”*
**Ease Of Chewing/Swallowing**2%
*“very swallowable”*
### **What buyers complain about **
**Sleep Quality**11%
*“Didnt help sleep”*
**Size-Overall**9%
*“Too Big”*
**Ease Of Chewing/Swallowing**7%
*“Hard To Swallow”*
**Magnesium**6%
*“Sometimes Magnesium can upset my stomach”*
**Dosage**6%
*“It's been very uncomfortable trying to figure out how to take my usual dosage”*
**Functionality-Overall**4%
*“Doesnt work as described”*
**Quality-Overall**4%
*“NO quality control”*
**Side Effects**4%
*“Bad Side effects”*
**Acid Regulator/Stomach Ache Relief**3%
*“Stomach pain”*
**Value For Money**2%
*“way too expensive”*
### **Top return reasons **
**Magnesium**16%
**Functionality-Overall**10%
**Value For Money**10%
**Acid Regulator/Stomach Ache Relief**9%
**Dosage**9%
**Size-Overall**6%
**Sleep Quality**5%
**Advertised Vs Actual Product**3%
**Ease Of Chewing/Swallowing**3%
**Contamination**3%
## **Common magnesium 200mg questions**
- **Is magnesium 200mg profitable to sell on Amazon United States?**
- The niche generates $2.6M/yr across 19 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -2.3%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the magnesium 200mg niche?**
- 12 brands and 104 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 88% of demand.
- **What do buyers complain about in magnesium 200mg?**
- Top complaints mined from reviews: Sleep Quality, Size-Overall, Ease Of Chewing/Swallowing. The return rate is 0.0%.
- **When does demand for magnesium 200mg peak?**
- Demand peaks in Apr–May; the busiest month runs 2.0× the quietest.
- **What does it cost to enter the magnesium 200mg niche?**
- Listings span $6.57–$45.01; the average listing price is $18.72 (sweet spot $15–$100). The average incumbent carries 15,127 reviews — the moat a new listing must climb.
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