Is magnesium glycinate 240 mg profitable to sell on Amazon United States?

The niche generates $804K/yr across 4 tracked products. 90-day search growth is -6.6%. Flapen's verdict: Skip it (41/100).

How competitive is the magnesium glycinate 240 mg niche?

2 brands and 33 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in magnesium glycinate 240 mg?

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

When does demand for magnesium glycinate 240 mg peak?

Demand peaks in Apr–May–Jun–Jul; the busiest month runs 2.7× the quietest.

What does it cost to enter the magnesium glycinate 240 mg niche?

Listings span $8.74–$16.89; the average listing price is $13.55 (sweet spot $15–$100). The average incumbent carries 28,347 reviews — the moat a new listing must climb.

Magnesium Glycinate 240 Mg

Skip it

A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible15.3%

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

Market size

Good$804K

$804K/yr · 388K searches

Avg price

Good$13.55

avg listing price — sweet spot $15–$100

Price range

Bad$8.74–$16.89

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

Growth

Bad-6.6%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Review moat

Bad28,346.5

avg incumbent reviews — the moat a new listing must climb

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Is magnesium glycinate 240 mg profitable on Amazon?

According to Flapen's Amazon United States niche tracking, magnesium glycinate 240 mg is a $804K/yr Amazon United States market (388K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Skip it — 41/100.

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

magnesium glycinate 240 mg market size & sales

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

Units sold / yr: 60K–80K; avg 15,000–20,000/product
Revenue / yr: $813K–$1.1M; units × avg price
Conversion rate: 15.3%
Avg BSR: #51
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 52 months
Avg seller age: 148 days

Competition: brands, sellers & click share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

2 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

Nature's Bounty93%
Natrol7%
Open — no brand owns it (0%)

magnesium glycinate 240 mg demand & seasonality

Weekly Amazon search volume, last 98 weeks — -6.6% search growth over the last 90 days.

Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 2.7×

Open Trend

Top magnesium glycinate 240 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 natures bounty55K/yr -21.1%14.2% conv.
magnesium glycinate 240 mg39K/yr +14.2%12.6% conv.
nature bounty magnesium glycinate34K/yr -5.9%9.5% conv.
natrol magnesium glycinate22K/yr +12.9%7.9% conv.
natures bounty magnesium glycinate 240 mg11K/yr -0.2%20.9% conv.
magnesium glycinate 2408K/yr +6.0%11.1% conv.
magnesium glycinate 240mg8K/yr +5.2%11.9% conv.
natures bounty high absorption magnesium glycinate7K/yr -12.0%18.5% conv.
natrol magnesium6K/yr +61.4%2.8% conv.

All search terms

Top magnesium glycinate 240 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 4 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

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

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 240 mg

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

What buyers love

Sleep Quality17%

“Helps me sleep”

Quality-Overall16%

“Good product, works as expected”

Magnesium12%

“Good magnesium”

Value For Money11%

“Good value for the money”

Muscle Pain Relief5%

“Great for muscles”

Vitamin5%

“The best vitamin for your body”

Advertised Vs Actual Product4%

“As advertised”

Efficiency3%

“Doing the job working well”

Joint Pain3%

“Helps with achy joints”

Ease Of Chewing/Swallowing2%

“not hard to swallow”

What buyers complain about

Magnesium9%

“I tend to get low on magnesium”

Size-Overall8%

“The tablets are unusually huge”

Quality-Overall8%

“Poor quality control”

Sleep Quality7%

“I had trouble sleeping”

Ease Of Chewing/Swallowing6%

“Hard to swallow”

Smell4%

“Bad Chemical Smell and Taste”

Dosage4%

“Messed me up bad after just one dose”

Acid Regulator/Stomach Ache Relief4%

“discomfort in my stomach”

Allergies3%

“Allergic reaction”

Functionality-Overall3%

“Not really work”

Top return reasons

Magnesium35%

Value For Money12%

Dosage8%

Ingredients-Overall8%

Durability4%

Texture/Consistency-Overall4%

Vitamin4%

Ease Of Chewing/Swallowing4%