Is magnesium glycinate 250 mg profitable to sell on Amazon United States?

The niche generates $980K/yr across 7 tracked products. 90-day search growth is -7.3%. Flapen's verdict: Skip it (44/100).

How competitive is the magnesium glycinate 250 mg niche?

5 brands and 60 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in magnesium glycinate 250 mg?

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

When does demand for magnesium glycinate 250 mg peak?

Demand peaks in Apr–May–Jul; the busiest month runs 5.8× the quietest.

What does it cost to enter the magnesium glycinate 250 mg niche?

Listings span $6.57–$26.10; the average listing price is $13.84 (sweet spot $15–$100). The average incumbent carries 28,379 reviews — the moat a new listing must climb.

Magnesium Glycinate 250 Mg

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible14.2%

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

Market size

Great$980K

$980K/yr · 500K searches

Avg price

Good$13.84

avg listing price — sweet spot $15–$100

Price range

Good$6.57–$26.10

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

Growth

Bad-7.3%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Review moat

Bad28,379

avg incumbent reviews — the moat a new listing must climb

Competition

Bad92%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Is magnesium glycinate 250 mg profitable on Amazon?

According to Flapen's Amazon United States niche tracking, magnesium glycinate 250 mg is a $980K/yr Amazon United States market (500K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jul. Verdict: Skip it — 44/100.

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

magnesium glycinate 250 mg market size & sales

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

Units sold / yr: 60K–80K; avg 10,000–12,500/product
Revenue / yr: $830K–$1.1M; units × avg price
Conversion rate: 14.2%
Avg BSR: #139
Page quality: 0%
Prime: 100%
Sponsored: 71%
Out of stock: 0.0%
Avg brand age: 53 months
Avg seller age: 146 days

Competition: brands, sellers & click share

The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.

Brands

5 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

92%

Top 20: 100%

Open market

Nature's Bounty79%
Natrol8%
Pure Encapsulations4%
Horbäach4%
Nature Made3%
Open — no brand owns it (0%)

magnesium glycinate 250 mg demand & seasonality

Weekly Amazon search volume, last 102 weeks — -7.3% search growth over the last 90 days.

Peak months: Apr, May, Jul · busiest ÷ quietest = 5.8×

Open Trend

Top magnesium glycinate 250 mg search terms shoppers use

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

natures bounty magnesium glycinate173K/yr -8.8%13.6% conv.
magnesium glycinate 250 mg64K/yr +3.6%6.2% conv.
magnesium glycinate natures bounty55K/yr -21.1%14.3% conv.
magnesium glycinate 240 mg39K/yr +14.2%13.5% conv.
nature bounty magnesium glycinate34K/yr -5.9%9.6% conv.
natrol magnesium glycinate22K/yr +12.9%8.0% conv.
magnesium glycinate 250mg16K/yr +25.9%4.2% conv.
magnesium glycinate 25011K/yr +17.3%6.4% conv.
natures bounty magnesium glycinate 240 mg11K/yr -0.2%21.0% conv.
magnesium glycinate 2408K/yr +6.0%11.7% conv.

All search terms

Top magnesium glycinate 250 mg 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 7 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

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$15.654.7★5,675 rev

Natures Bounty Calm Magnesium Glycinate Supplement - High Absorption Magnesium for Relaxed Mood Heart & Bone Health 90 Capsules

Nature's Bounty$16.894.7★1,561 rev

Natrol High Absorption Magnesium Glycinate 240 mg 60 Capsules

Natrol$12.934.6★860 rev

Natures Bounty Magnesium 500 mg Tablets High Potency Magnesium Supplement for Bone & Muscle Health Whole Body Support 200 Count (Pack of 1)

Nature's Bounty$8.744.7★105,290 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

Newest

by launch date

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

Natrol High Absorption Magnesium Glycinate 240 mg 60 Capsules

Natrol$12.93860 rev

1y ago

Horbach Magnesium Glycinate | 250mg | 120 Softgels

Horbäach$10.00522 rev

3y ago

Natures Bounty Calm Magnesium Glycinate Supplement - High Absorption Magnesium for Relaxed Mood Heart & Bone Health 90 Capsules

Nature's Bounty$16.891,561 rev

3y ago

Natures Bounty Magnesium 500 mg Tablets High Potency Magnesium Supplement for Bone & Muscle Health Whole Body Support 200 Count (Pack of 1)

Nature's Bounty$8.74105,290 rev

12y ago

What reviews say buyers love and hate about magnesium glycinate 250 mg

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

What buyers love

Sleep Quality21%

“Sleep like a baby”

Quality-Overall19%

“Good quality and reliable brand”

Magnesium13%

“Best magnesium supplement Ive had yet”

Value For Money7%

“Great buy”

Vitamin4%

“This is perfect vitamin for a good night”

Advertised Vs Actual Product4%

“As advertised”

Muscle Pain Relief3%

“Great for muscles”

Stress/Anxiety2%

“It also helps with stress”

Efficiency2%

“Good Results”

Ease Of Chewing/Swallowing2%

“not hard to swallow”

What buyers complain about

Sleep Quality12%

“Did not help with sleep”

Magnesium8%

“Maybe not pure magnesium glycinate or no quality control”

Size-Overall7%

“The tablets are unusually huge”

Quality-Overall6%

“Poor quality control”

Dosage5%

“Dose is too high for me”

Side Effects5%

“Bad Side effects”

Functionality-Overall4%

“in my case it just didnt stand out as particularly effective”

Acid Regulator/Stomach Ache Relief4%

“Upset stomach”

Ease Of Chewing/Swallowing4%

“Hard to swallow”

Value For Money3%

“Waste of money”

Top return reasons

Magnesium26%

Dosage12%

Functionality-Overall11%

Value For Money9%

Size-Overall5%

Acid Regulator/Stomach Ache Relief5%

Sleep Quality5%

Ingredients-Overall4%

Vitamin3%

Joint Pain2%

Common magnesium glycinate 250 mg questions

Is magnesium glycinate 250 mg profitable to sell on Amazon United States?: The niche generates $980K/yr across 7 tracked products. 90-day search growth is -7.3%. Flapen's verdict: Skip it (44/100).
How competitive is the magnesium glycinate 250 mg niche?: 5 brands and 60 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in magnesium glycinate 250 mg?: Top complaints mined from reviews: Sleep Quality, Magnesium, Size-Overall. The return rate is 0.0%.
When does demand for magnesium glycinate 250 mg peak?: Demand peaks in Apr–May–Jul; the busiest month runs 5.8× the quietest.
What does it cost to enter the magnesium glycinate 250 mg niche?: Listings span $6.57–$26.10; the average listing price is $13.84 (sweet spot $15–$100). The average incumbent carries 28,379 reviews — the moat a new listing must climb.