Is potassium supplement profitable to sell on Amazon United States?

The niche generates $7.1M/yr across 22 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -2.0%. Flapen's verdict: Worth a look (62/100).

How competitive is the potassium supplement niche?

17 brands and 80 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 65% of demand.

What do buyers complain about in potassium supplement?

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

When does demand for potassium supplement peak?

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

What does it cost to enter the potassium supplement niche?

Listings span $4.54–$31.36; the average listing price is $16.36 (sweet spot $15–$100). The average incumbent carries 6,851 reviews — the moat a new listing must climb.

potassium supplement

Worth a look

Shows 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$7.1M

$7.1M/yr · 2.9M searches

Conversion

Incredible14.7%

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

Avg price

Great$16.36

avg listing price — sweet spot $15–$100

Brand share

Good65%

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

Price range

Good$4.54–$31.36

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

Competition

Okay56%

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

Growth

Bad-2.0%

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

Review moat

Bad6,851

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, potassium supplement is a $7.1M/yr Amazon United States market (2.9M searches/yr). The top 5 brands hold 65% of demand. Verdict: Worth a look — 62/100.

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

potassium supplement market data

Units sold / yr: 400K–500K; avg 15,000–20,000/product
Revenue / yr: $6.5M–$8.2M; units × avg price
Conversion rate: 14.7%
Avg BSR: #67
Page quality: 0%
Prime: 100%
Sponsored: 82%
Out of stock: 4.1%
Avg brand age: 75 months
Avg seller age: 149 days

Competition & brand share

The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 falling

Sellers

Top-5 brand share

65%

Top 20: 100%

Top-5 click share

56%

Top 20: 98%

Open market

28%

Nature's Bounty24%
Life Enhancement14%
Nature Made9%
Pure Encapsulations9%
Nutricost8%
Vykee Nutrition7%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -2.0% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.2×

Open Trend

Top potassium supplement search terms

potassium supplement2.0M/yr -1.6%11.9% conv.
potassium649K/yr -3.3%9.6% conv.
potasio79K/yr +1.6%4.3% conv.
dr berg potassium22K/yr +44.0%9.7% conv.
potassium supplements40K/yr -19.2%6.9% conv.
dr berg potassium supplements21K/yr -8.7%8.0% conv.
potassium pills26K/yr -2.5%9.9% conv.
potasium18K/yr +6.1%11.0% conv.
potasio 1000mg20K/yr -15.6%2.6% conv.
potassium supplements for women14K/yr +0.5%9.0% conv.

All search terms

Top potassium supplement 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.

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

All 22 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Natures Bounty Potassium 99mg Supports Fluid Balance and Muscle Activity Involved in Normal Heart Function Potassium Gluconate Dietary Supplement Gluten Free 1 Per Day 100 Vegetarian Caplets

Nature's Bounty$5.334.8★5,626 rev

Life Enhancement High Potency 1020 mg Potassium Supplement for Muscle Brain & Bone Health - No Additives High Absorption Elemental Potassium Supplement Made in USA (240 Capsules 120 Servings)

Life Enhancement$24.614.6★6,967 rev

Nutricost Potassium Citrate 99mg 500 Capsules

Nutricost$19.774.7★14,955 rev

Nature Made Potassium Gluconate 550 mg Potassium Supplements 100 Tablets

Nature Made$4.544.7★16,025 rev

Vykee Nutrition Potassium Citrate Capsules Helps Electrolyte Balance 500 mg

Vykee Nutrition$19.374.7★1,346 rev

Newest

by launch date

Dr. Berg Potassium Tri-Blend Complex 500 mg Potassium Supplement for Muscle & Nerve Support* Maximum Strength Potassium Formula w/Magnesium B6 & Taurine 90 Capsules

Dr. Berg Nutritionals$20.02139 rev

6mo ago

Amazon Basics Potassium Heart Health Capsules 99 mg 250 Count

Amazon Basics$10.53247 rev

7mo ago

Vykee Nutrition Potassium Citrate Capsules Helps Electrolyte Balance 500 mg

Vykee Nutrition$19.371,346 rev

1y ago

duwhot Potassium Citrate 1000mg Gummies 60 Chewables

duwhot$21.801,025 rev

2y ago

BulkSupplements.com Potassium Citrate Capsules - Mineral Supplement Potassium Citrate 99mg - Gluten Free 1 Capsule per Serving 500 Count (Pack of 1)

BulkSupplements$16.91840 rev

2y ago

What buyers say about potassium supplement

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

What buyers love

Quality-Overall22%

“Amazon Basics quality is reliable”

Vitamin9%

“Effective vitamins”

Value For Money8%

“Good value for the money”

Calcium6%

“Good supplement if your calcium is low”

Advertised Vs Actual Product6%

“As described”

Muscle Pain Relief5%

“It helps with muscle spasms”

Efficiency5%

“The product was effective immediately”

Ease Of Chewing/Swallowing4%

“easily chewable gummies”

Ease Of Use3%

“Easy to use”

Joint Pain3%

“Just what the Dr ordered for my joints when I get those painful leg cramps at night”

What buyers complain about

Dosage12%

“Low dosage”

Magnesium7%

“worthless for magnesium”

Calcium6%

“not the total amount potassium citrate”

Heart Health4%

“.but can't use this one due to being on heart meds”

Functionality-Overall4%

“Did not work”

Value For Money3%

“Cheap”

Quality-Overall3%

“Poor Quality control”

Taste-Overall3%

“it tastes so nasty”

Blood Pressure3%

“I was hoping for a better effect on my blood pressure, but it did not happen”

Size-Overall3%

“The caplets are small”

Top return reasons

Magnesium33%

Dosage17%

Certifications17%

Functionality-Overall8%

Joint Pain8%

Calcium8%

Advertised Vs Actual Product4%