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diet lemonade

Skip it

Prices mostly outside the sweet spot ($0.90–$6.82) — this niche doesn't clear our bar today.

Market size 16Growth 62Conversion 100Competition 17Returns 100Price range 0Avg price 9Brand share 7Review moat 52Quality gap 25

Conversion

Incredible23.1%

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

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Growth

Good+39.8%

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

Review moat

Good1,435.73

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Competition

Bad80%

top-5 click share — a locked-up shelf

Market size

Bad£63K

£63K/yr · 82K searches

Avg price

Bad£3.32

avg listing price — sweet spot $15–$100

Brand share

Bad97%

top-5 brand share — brand-locked demand

Price range

Bad£0.90–£6.82

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

According to Flapen's Amazon United Kingdom niche tracking, diet lemonade is a £63K/yr Amazon United Kingdom market (82K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Dec. Verdict: Skip it — 40/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

diet lemonade market data

Units sold / yr
30K–40K
avg 2,000–2,500/product
Revenue / yr
£100K–£133K
units × avg price
Conversion rate
23.1%
Avg BSR
#9
Page quality
0%
Prime
100%
Sponsored
45%
Out of stock
3.1%
Avg brand age
71 months
Avg seller age
165 days

Competition & brand share

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

64

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

80%

Top 20: 100%

Open market

0%

  • R Whites35%
  • Morrisons34%
  • Schweppes14%
  • 7UP9%
  • Sprite5%
  • BARR3%

Demand & seasonality

Weekly Amazon search volume, last 83 weeks — +39.8% search growth over the last 90 days.
4K3KSpike '25Prime Day '25Black Friday '25Holiday '25Spike '26Prime Day '26JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Dec · busiest ÷ quietest = 2.2×

Top diet lemonade search terms

  • diet lemonade72K/yr
  • lemonade diet7K/yr
  • diet lemonade 2l4K/yr
All search terms

Top diet lemonade 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%£6K20%£13K30%£19K40%£25K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

What buyers say about diet lemonade

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

What buyers love

Taste-Overall30%

“Excellent taste”

Value For Money30%

“Great value”

Quality-Overall8%

“No complaints”

Freshness7%

“Very refreshing”

Alcohol Flavor6%

“Drinkable”

Flavor4%

“Great flavour”

Sweetness3%

“Amazing, not too sweet and not too tart”

Advertised Vs Actual Product3%

“As advertised”

Crispiness1%

“taste so crisp”

Blend/Ratio1%

“Prefer lemon and lime yet nice change”

What buyers complain about

Taste-Overall31%

“Wierd taste”

Value For Money14%

“Cheapest ive seen”

Flavor10%

“Too fizzy for my liking”

Artificial Sweeteners4%

“Not as good without the sugar”

Instructions/User Manual/Troubleshooting4%

“The delivery completely ignored delivery instructions on file”

Sweetness4%

“Too sweet for me”

Sour3%

“Lacks the Lemon taste for me”

Quality-Overall3%

“Its nothing like the best as advertised”

Caffeine Content2%

“Never realised this had 0 caffeine in it, anyway it tastes great and is refreshing”

Dilute/Watery1%

“More like Fizzy water”

Common questions

Is diet lemonade profitable to sell on Amazon United Kingdom?
The niche generates £63K/yr across 11 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +39.8%. Flapen's verdict: Skip it (40/100).
How competitive is the diet lemonade niche?
6 brands and 64 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in diet lemonade?
Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.0%.
When does demand for diet lemonade peak?
Demand peaks in Dec; the busiest month runs 2.2× the quietest.
What does it cost to enter the diet lemonade niche?
Listings span £0.90–£6.82; the average listing price is £3.32 (sweet spot $15–$100). The average incumbent carries 1,436 reviews — the moat a new listing must climb.