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potassium supplement 1000mg capsules

Skip it

A small market ($40K/yr) — this niche doesn't clear our bar today.

Market size 10Growth 14Conversion 96Competition 32Returns 100Price range 84Avg price 90Brand share 58Review moat 49Quality gap 38

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible13.0%

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

Avg price

Great$21.02

avg listing price — sweet spot $15–$100

Price range

Great$9.74–$47.73

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

Brand share

Good70%

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

Review moat

Okay1,605.9

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Okay66%

top-5 click share — leaders hold, buyers still browse

Growth

Bad-21.4%

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

Market size

Bad$40K

$40K/yr · 15K searches

According to Flapen's Amazon United States niche tracking, potassium supplement 1000mg capsules is a $40K/yr Amazon United States market (15K searches/yr). The top 5 brands hold 70% of demand. Demand peaks in May. Verdict: Skip it — 49/100.

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

potassium supplement 1000mg capsules market data

Units sold / yr
1K–1K
avg 0–100/product
Revenue / yr
$21K–$26K
units × avg price
Conversion rate
13.0%
Avg BSR
#65
Page quality
0%
Prime
100%
Sponsored
95%
Out of stock
3.9%
Avg brand age
68 months
Avg seller age
175 days

Competition & brand share

The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.

Brands

19 rising

Sellers

26

Top-5 brand share

70%

Top 20: 100%

Top-5 click share

66%

Top 20: 99%

Open market

26%

  • Life Enhancement31%
  • Novafun13%
  • HZZYPLANT12%
  • PYUNAFIT9%
  • Pure Encapsulations4%
  • Safrel4%

Demand & seasonality

Weekly Amazon search volume, last 99 weeks — -21.4% search growth over the last 90 days.
500300Spike '24Holiday '24Spike '25Spike '26DecMarJunAugNovMarMay

Peak months: May · busiest ÷ quietest = 1.7×

Top potassium supplement 1000mg capsules search terms

  • potassium 1000mg10K/yr
  • potassium supplement 1000mg capsules3K/yr
  • 1000 mg potassium2K/yr
All search terms

Top potassium supplement 1000mg capsules products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$4K20%$8K30%$12K40%$16K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 21 tracked products in this niche — three views at once, no toggling.

What buyers say about potassium supplement 1000mg capsules

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

What buyers love

Quality-Overall16%

“Excellent Product”

Taste-Overall9%

“taste refreshing”

Calcium6%

“calcium together neutralizes the beneficial effects of both”

Vitamin6%

“Vitamin good quality”

Efficiency5%

“The product was effective immediately”

Value For Money4%

“Decent price”

Advertised Vs Actual Product4%

“works as advertised”

Nutritional Content3%

“convenient for daily supplementation”

Ease Of Chewing/Swallowing3%

“They are small enough to be easy to take on their own or in one gulp with other supplements”

Muscle Pain Relief3%

“It helps with muscle spasms”

What buyers complain about

Taste-Overall15%

“Taste is gross”

Dosage8%

“Too high of a dose for me”

Flavor6%

“Artificial flavors are added”

Sweetness6%

“Too sweet”

Calcium4%

“not the total amount potassium citrate”

Solubility3%

“Doesnt dissolve well”

Quality-Overall3%

“Poor Quality control”

Value For Money3%

“To expensive”

Heart Health3%

“be mindful that excessive potassium may lead to serious heart complications”

Ingredients-Overall2%

“Some not so pleasant ingredients and tastes horrible”

Top return reasons

Taste-Overall25%
Magnesium13%
Certifications13%
Leak-Proof13%
Functionality-Overall13%
Dosage13%
Ease Of Chewing/Swallowing6%
Advertised Vs Actual Product6%

Common questions

Is potassium supplement 1000mg capsules profitable to sell on Amazon United States?
The niche generates $40K/yr across 21 tracked products. 5 of 6 products launched in the last 360 days are still selling. 90-day search growth is -21.4%. Flapen's verdict: Skip it (49/100).
How competitive is the potassium supplement 1000mg capsules niche?
19 brands and 26 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 70% of demand.
What do buyers complain about in potassium supplement 1000mg capsules?
Top complaints mined from reviews: Taste-Overall, Dosage, Flavor. The return rate is 0.0%.
When does demand for potassium supplement 1000mg capsules peak?
Demand peaks in May; the busiest month runs 1.7× the quietest.
What does it cost to enter the potassium supplement 1000mg capsules niche?
Listings span $9.74–$47.73; the average listing price is $21.02 (sweet spot $15–$100). The average incumbent carries 1,606 reviews — the moat a new listing must climb.