Is potassium supplements profitable to sell on Amazon United Kingdom?

The niche generates £332K/yr across 9 tracked products. 90-day search growth is -3.5%. Flapen's verdict: Skip it (45/100).

How competitive is the potassium supplements niche?

9 brands and 17 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 86% of demand.

What do buyers complain about in potassium supplements?

Top complaints mined from reviews: Ease Of Chewing/Swallowing, Size-Overall, Dosage. The return rate is 0.1%.

When does demand for potassium supplements peak?

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

What does it cost to enter the potassium supplements niche?

Listings span £5.97–£13.73; the average listing price is £8.75 (sweet spot $15–$100). The average incumbent carries 1,607 reviews — the moat a new listing must climb.

potassium supplements

Skip it

Prices mostly outside the sweet spot ($5.97–$13.73) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great11.8%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Good£332K

£332K/yr · 322K searches

Review moat

Okay1,606.78

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay86%

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

Avg price

Bad£8.75

avg listing price — sweet spot $15–$100

Growth

Bad-3.5%

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

Competition

Bad86%

top-5 click share — a locked-up shelf

Price range

Bad£5.97–£13.73

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

According to Flapen's Amazon United Kingdom niche tracking, potassium supplements is a £332K/yr Amazon United Kingdom market (322K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 45/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

potassium supplements market data

Units sold / yr: 30K–40K; avg 3,000–4,000/product
Revenue / yr: £263K–£350K; units × avg price
Conversion rate: 11.8%
Avg BSR: #6
Page quality: 0%
Prime: 100%
Sponsored: 89%
Out of stock: 0.0%
Avg brand age: 55 months
Avg seller age: 166 days

Competition & brand share

The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

86%

Top 20: 100%

Open market

10%

NEW LEAF PRODUCTS38%
Horbäach17%
Solgar13%
WeightWorld11%
MOBU6%
NUTRALIE4%
Open — no brand owns it (3 brands, 10%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -3.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.2×

Open Trend

Top potassium supplements search terms

potassium supplements177K/yr -5.3%11.6% conv.
potassium93K/yr -7.6%8.6% conv.
potassium supplement24K/yr +3.9%9.6% conv.
potassium tablets17K/yr +34.5%9.0% conv.
potasium3K/yr +2.3%11.6% conv.
pottasium2K/yr +13.0%9.1% conv.
potassium capsules3K/yr -34.9%9.5% conv.
nutrition geeks potassium2K/yr +0.3%8.3% conv.

All search terms

Top potassium supplements 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 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Potassium Supplements 1500mg High Strength - 180 Vegan Potassium Mineral Electrolytes Supplement - Contributes to Normal Muscle Function Nervous System - Non-GMO Made in UK by New Leaf

NEW LEAF PRODUCTS£8.334.4★1,423 rev

Potassium Supplement 1500mg with Vitamin C | Mineral Electrolytes | High Absorption Citrate Form | 120 Capsules (Not Tablets) - 100% Vegan | by Horbaach

Horbäach£7.144.6★1,152 rev

Solgar Potassium Tablets - Essential Electrolyte - Supports Nerve and Muscle Function for Normal Blood Pressure - Vegan - 100 Count (Pack of 1)

Solgar£7.244.5★2,149 rev

Potassium Supplements with Vitamin C 1460mg - 3 Months Supply - 180 Tablets

WeightWorld£13.604.4★5,152 rev

MOBU£6.554.3★388 rev

Newest

by launch date

Potassium - Potassium Citrate 2880mg - 180 Tablets - PotassiumElement +1000mg - PotassiumCitrate 180 Tablets Nutralie

NUTRALIE£13.73712 rev

2y ago

Potassium Supplement 1500mg with Vitamin C | Mineral Electrolytes | High Absorption Citrate Form | 120 Capsules (Not Tablets) - 100% Vegan | by Horbaach

Horbäach£7.141,152 rev

3y ago

Swiss bioenergetics Potassium Citrate 1000mg Daily dose 120 Vegan Capsules - High Strength Electrolytes Support Superior & Absorption Great Keto and Fasting No Dairy or Gluten UK Made Pack of 120

swiss bioenergetics£7.94565 rev

3y ago

Potassium Supplements 1500mg High Strength - 180 Vegan Potassium Mineral Electrolytes Supplement - Contributes to Normal Muscle Function Nervous System - Non-GMO Made in UK by New Leaf

NEW LEAF PRODUCTS£8.331,423 rev

4y ago

Potassium Supplements with Vitamin C 1460mg - 3 Months Supply - 180 Tablets

WeightWorld£13.605,152 rev

5y ago

What buyers say about potassium supplements

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

What buyers love

Quality-Overall20%

“Reliable brand”

Advertised Vs Actual Product11%

“As advertised”

Vitamin10%

“Decent supplement”

Calcium10%

“Are you getting enough Potassium”

Value For Money9%

“Good value”

Ease Of Chewing/Swallowing5%

“they are easily swallowed”

Muscle Pain Relief3%

“have positively dealt with the muscle cramps I experienced early in the morning on waking”

Nutritional Content3%

“Started taking these to fill a gap in my diet”

Efficiency3%

“Effective”

Blood Pressure3%

“They are great for lowering blood pressure”

What buyers complain about

Ease Of Chewing/Swallowing19%

“Had to chew mine”

Size-Overall12%

“The tablets are quite large”

Dosage11%

“It's only 200mg per tablet which is not enough”

Acid Regulator/Stomach Ache Relief7%

“Extreme stomach pain”

Side Effects4%

“I did not research the possible side effects”

Quality-Overall3%

“They are either really cheaply made or there's a manufacturing problem”

Calcium3%

“Its hard to meet daily minimum potassium intake”

Muscle Pain Relief2%

“And when I finally got them down they didn't seem to stop my leg cramps”

Heart Health2%

“Gave me heartburn”

Strength2%

“Maybe too strong for me”

Common questions

Is potassium supplements profitable to sell on Amazon United Kingdom?: The niche generates £332K/yr across 9 tracked products. 90-day search growth is -3.5%. Flapen's verdict: Skip it (45/100).
How competitive is the potassium supplements niche?: 9 brands and 17 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 86% of demand.
What do buyers complain about in potassium supplements?: Top complaints mined from reviews: Ease Of Chewing/Swallowing, Size-Overall, Dosage. The return rate is 0.1%.
When does demand for potassium supplements peak?: Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the potassium supplements niche?: Listings span £5.97–£13.73; the average listing price is £8.75 (sweet spot $15–$100). The average incumbent carries 1,607 reviews — the moat a new listing must climb.