Is magnesium gluconate profitable to sell on Amazon United States?

The niche generates $151K/yr across 14 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +8.8%. Flapen's verdict: Skip it (48/100).

How competitive is the magnesium gluconate niche?

11 brands and 43 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 78% of demand.

What do buyers complain about in magnesium gluconate?

Top complaints mined from reviews: Sleep Quality, Magnesium, Dosage. The return rate is 0.0%.

When does demand for magnesium gluconate peak?

Demand is steady year-round — the busiest month runs 1.2× the quietest.

What does it cost to enter the magnesium gluconate niche?

Listings span $6.59–$45.01; the average listing price is $17.32 (sweet spot $15–$100). The average incumbent carries 17,232 reviews — the moat a new listing must climb.

Magnesium Gluconate

Skip it

A deep review moat (17,232 avg reviews) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Great9.8%

search→purchase rate — share of searches ending in a sale

Avg price

Great$17.32

avg listing price — sweet spot $15–$100

Price range

Great$6.59–$45.01

cheapest to priciest tracked listing — scored on the share inside $15–$100

Brand share

Okay78%

top-5 brand share — brands hold most of the demand

Growth

Okay+8.8%

90-day search growth — must beat 0% to launch

Market size

Okay$151K

$151K/yr · 88K searches

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Competition

Bad71%

top-5 click share — a locked-up shelf

Review moat

Bad17,232

avg incumbent reviews — the moat a new listing must climb

Is magnesium gluconate profitable on Amazon?

According to Flapen's Amazon United States niche tracking, magnesium gluconate is a $151K/yr Amazon United States market (88K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 48/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

magnesium gluconate market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 10K–13K; avg 500–750/product
Revenue / yr: $173K–$217K; units × avg price
Conversion rate: 9.8%
Avg BSR: #842
Page quality: 0%
Prime: 93%
Sponsored: 86%
Out of stock: 1.4%
Avg brand age: 67 months
Avg seller age: 155 days

Competition: brands, sellers & click share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 falling

Sellers

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

16%

Windmill40%
MASON NATURAL12%
Best Naturals11%
Pure Encapsulations10%
Nature's Bounty6%
Nobi Nutrition6%
Open — no brand owns it (5 brands, 16%)

magnesium gluconate demand & seasonality

Weekly Amazon search volume, last 103 weeks — +8.8% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.2×

Open Trend

Top magnesium gluconate search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

magnesium gluconate50K/yr +6.4%5.8% conv.
magnesium gluconate 500mg26K/yr +20.9%11.0% conv.
magnesium gluconate 250mg7K/yr +14.9%5.6% conv.
gluconato de magnesio6K/yr -27.2%1.9% conv.

All search terms

Top magnesium gluconate 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Magnesium Gluconate 500 Mg 90 Tb - From Windmill

Windmill$6.594.7★832 rev

Best Naturals Magnesium Gluconate (35 mg Elemental Magnesium from 600mg of Magnesium Gluconate) 180 Tablets

Best Naturals$9.734.6★878 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

Mason Natural Magnesium Gluconate 550 mg Heart Support 300 Day Supply

MASON NATURAL$17.534.6★969 rev

Nobi Nutrition$15.154.6★6,787 rev

Newest

by launch date

Magnesium Complex for Women & Men 500mg (7-in-1) Magnesium Glycinate with Vegan D3 B6 and Manganese (Made In USA) + Gluconate Citrate Malate Taurate Orotate Carbonate (Oxide-Free) Small Capsule

Etta Vita$26.28402 rev

4mo ago

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

1y ago

Nobi Nutrition$15.156,787 rev

2y ago

Naturebell Pure Magnesium Glycinate 500mg 240 Veggie Capsules | 100% Chelated & Purified 3rd Party Tested Vegan Friendly Non-GMO Filler Free

NatureBell$17.6619,678 rev

3y ago

Best Naturals Magnesium Gluconate (35 mg Elemental Magnesium from 600mg of Magnesium Gluconate) 180 Tablets

Best Naturals$9.73878 rev

4y ago

What reviews say buyers love and hate about magnesium gluconate

What buyers praise and complain about, mined from review topics.

What buyers love

Sleep Quality22%

“Helps with sleep”

Quality-Overall18%

“Quality is pure”

Magnesium14%

“Best magnesium ever”

Value For Money6%

“Good value for money”

Vitamin4%

“easy to swallow vitamins”

Advertised Vs Actual Product4%

“True to description”

Muscle Pain Relief4%

“Relaxes my muscles”

Efficiency3%

“Doing the job working well”

Ease Of Chewing/Swallowing2%

“Easier to swallow”

Stress/Anxiety2%

“Also helps with stress”

What buyers complain about

Sleep Quality12%

“Does not help you sleep”

Magnesium10%

“I got the wrong magnesium”

Dosage8%

“Misleading 500mg label/dosage”

Functionality-Overall5%

“noticed no results”

Quality-Overall5%

“Poor quality control”

Size-Overall4%

“they were smaller”

Acid Regulator/Stomach Ache Relief4%

“Hard on my stomach”

Side Effects4%

“Bad Side effects”

Advertised Vs Actual Product4%

“False Advertising”

Value For Money3%

“A little pricey”

Top return reasons

Magnesium21%

Dosage18%

Value For Money11%

Functionality-Overall8%

Acid Regulator/Stomach Ache Relief7%

Sleep Quality5%