Magnesium 200mg
Worth a lookShows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Market size
Incredible$2.6M$2.6M/yr · 1.1M searches
Conversion
Incredible13.1%search→purchase rate — share of searches ending in a sale
Avg price
Great$18.72avg listing price — sweet spot $15–$100
Price range
Great$6.57–$45.01cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Brand share
Okay88%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
Bad4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad15,126.89avg 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
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.Peak months: Apr, May · busiest ÷ quietest = 2.0×
Top magnesium 200mg search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- magnesium glycinate 200mg485K/yr
- nature made magnesium glycinate256K/yr
- magnesium glycinate nature made66K/yr
- magnesium glycinate 200 mg55K/yr
- magnesium 200mg37K/yr
- natures made magnesium glycinate26K/yr
- nature made magnesium glycinate 200 mg20K/yr
- magnesium glycinate 20021K/yr
- naturemade magnesium glycinate18K/yr
- magnesium glycinate 200mg capsules14K/yr
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.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nature Made Magnesium Glycinate 200 mg per Serving 180 Capsules
Nature Made$30.554.6★21,706 rev
Nature Made Magnesium Glycinate 200 mg per Serving 60 Capsules
Nature Made$11.734.6★21,706 rev
Nature Made Magnesium Glycinate 300 mg per 3 Capsules 90 Capsules
Nature Made$21.134.7★2,683 rev
Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief Sleep Heart Health Nerves Muscles and Metabolism* - with Magnesium Glycinate - 90 Capsules
Pure Encapsulations$26.104.7★49,969 rev
Bronson Magnesium Glycinate 200 MG Chelated High Absorption 120 Capsules
Bronson$14.624.7★4,875 rev
Newest
by launch date
Nature Made Magnesium + Ashwagandha Capsules 60 Capsules
Nature Made$11.06107 rev
THORNE - Magnesium Glycinate - Supports Restful Sleep Muscle Relaxation Heart Health & Metabolism* - Chelated Magnesium Capsules - Third-Party Certified - Gluten Dairy & Soy-Free - 90 Servings
THORNE$25.392,847 rev
Magnesium Glycinate 1540mg -200mg Elemental Magnesium Supplement 100% Pure
Health Thru Nutrition$9.91708 rev
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$15.655,675 rev
Nature Made Magnesium Glycinate 300 mg per 3 Capsules 90 Capsules
Nature Made$21.132,683 rev
Trending
90-day click momentumNature Made Magnesium + Ashwagandha Capsules 60 Capsules
Nature Made$11.064.3★
Nutricost Magnesium Glycinate Capsules 180 Capsules 210mg
Nutricost$15.434.7★
Nature Made Magnesium Glycinate 300 mg per 3 Capsules 90 Capsules
Nature Made$21.134.7★
Nature Made High Absorption Magnesium Glycinate Gummies 40 Count
Nature Made$12.184.6★
Magnesium Glycinate 1540mg -200mg Elemental Magnesium Supplement 100% Pure
Health Thru Nutrition$9.914.5★
What reviews say buyers love and hate about magnesium 200mg
What buyers praise and complain about, mined from review topics.What buyers love
“More deep sleep”
“The quality is solid”
“Best Magnesium Product”
“price was fair”
“As advertised”
“I love Pure Vitamins”
“Eases muscle cramping”
“less stress”
“Works perfectly”
“very swallowable”
What buyers complain about
“Didnt help sleep”
“Too Big”
“Hard To Swallow”
“Sometimes Magnesium can upset my stomach”
“It's been very uncomfortable trying to figure out how to take my usual dosage”
“Doesnt work as described”
“NO quality control”
“Bad Side effects”
“Stomach pain”
“way too expensive”
Top return reasons
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.