---
title: "Rio Mare — £178K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/grocery/rio-mare"
last_updated: "2026-07-31T16:54:10.673Z"
locale: en
meta:
description: "Niche score 59/100 · £178K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 59/100 · £178K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Rio Mare — £178K/yr Amazon UK Niche (2026) - Flapen"
---
# **rio mare**
**Worth a look**
Shows low returns (0.2%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 36Growth 86Conversion 96Competition 42Returns 99Price range 64Avg price 24Brand share 2Review moat 86Quality gap 58
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.7%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Great****+87.5%**
90-day search growth — must beat 0% to launch
**Review moat**
**Great****271.13**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****£1.66–£38.56**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****60%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****£178K**
£178K/yr · 153K searches
**Avg price**
**Bad****£8.52**
avg listing price — sweet spot $15–$100
**Brand share**
**Bad****99%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, rio mare is a £178K/yr Amazon United Kingdom market (153K searches/yr). The top 5 brands hold 99% of demand. Demand peaks in May–Jun. Verdict: Worth a look — 59/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **rio mare market data**
- **Units sold / yr**
- **30K–40K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **£256K–£341K**
- units × avg price
- **Conversion rate**
- **13.7%**
- **Avg BSR**
- **#5,435**
- **Page quality**
- **0%**
- **Prime**
- **83%**
- **Sponsored**
- **39%**
- **Out of stock**
- **5.4%**
- **Avg brand age**
- **49 months**
- **Avg seller age**
- **170 days**
## **Competition & brand share**
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**6 **—flat
**Sellers**
**86**
**Top-5 brand share**
**99%**
Top 20: 100%
**Top-5 click share**
**60%**
Top 20: 97%
**Open market**
**0%**
- Rio Mare68% - John West23% - Generic5% - sportvibe2% - Morrisons1% - AHG Investment1% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 85 weeks — +87.5% search growth over the last 90 days.
8K6KSpike '25Prime Day '25Spike '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: May, Jun · busiest ÷ quietest = 5.7×
[**Open Trend **](https://flapen.com/research/uk/grocery/rio-mare/trend)
## **Top rio mare search terms**
- **rio mare tuna**34K/yr+443.4%3.5% conv. - **rio mare**42K/yr+25.7%5.5% conv. - **john west on the go**16K/yr+34.0%6.9% conv. - **john west**18K/yr+14.1%5.0% conv. - **john west tuna**13K/yr+16.6%1.9% conv. - **rio mare tuna in olive oil**7K/yr+557.2%1.0% conv. - **tuna salad**10K/yr+37.3%10.3% conv. - **rio tuna**6K/yr+91.4%3.3% conv. - **rio mare insalatissime**4K/yr+9.8%13.4% conv. - **on the go**3K/yr+29.0%2.1% conv. [**All search terms **](https://flapen.com/research/uk/grocery/rio-mare/search-terms)
## **Top rio mare 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%5%£9K10%£18K15%£27K20%£36K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Rio Mare Insalatissime Tuna Salad Mexican Style 160g**Rio Mare**£1.66**4.4★162 rev](https://www.amazon.co.uk/dp/B07DFMNF6V) [2**Rio Mare Insalatissime Corn and Tuna Salad 160g with Prime Quality Tinned Fish Ready to Eat Healthy Meal Sustainably sourced**Rio Mare**£1.82**4.4★155 rev](https://www.amazon.co.uk/dp/B07DFJY7HC) [3**Rio Mare: Set of 12 Cans of Tuna Fish in Olive Oil Yellowfin Tuna Quality Pack of 12 80g (2.82oz) Each 960g (33.86oz) Total**Rio Mare**£22.50**4.6★175 rev](https://www.amazon.co.uk/dp/B07J4472X2) [4**Rio Mare Insalatissime Cous Cous and Tuna 160 g**Rio Mare**£1.79**4.5★111 rev](https://www.amazon.co.uk/dp/B07DFLLHPP) [5**John West Lunch on the Go French Style Tuna Salad 220g**John West**£2.39**4.2★200 rev](https://www.amazon.co.uk/dp/B00XBXEGC6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Lunch Snack Bundle With John West On The Go Honey & Ginger Super Tuna Salad Morrocan Salmon and Harissa Super Tuna Salad 220g Each (3 Pack)**Generic**£13.30**9 rev7mo ago](https://www.amazon.co.uk/dp/B0FKNDSRT6) [**John West Tuna Chunks in Spring Water Easy Open 4 Cans x 125 g**John West**£4.27**178 rev1y ago](https://www.amazon.co.uk/dp/B0DDL7WZFK) [**Morrisons Tuna & Sweetcorn Salad 290g**Morrisons**£3.22**115 rev2y ago](https://www.amazon.co.uk/dp/B0D66W2PFH) [**sportvibe Water Shoes Beach Shoes Lightweight Barefoot Aqua Quick Dry Breathable Swim for Women Men Surfing Running Driving Pool Yoga (Black 9 UK/43 EU)**sportvibe**£6.43**3,059 rev2y ago](https://www.amazon.co.uk/dp/B0D1CCG52P) [**John West Tuna Chunks in Brine Tins - Naturally High in Protein - Great for Recipes - 100% Traceable Fish Cans UK Pack - 12 x 145g**AHG Investment**£18.42**49 rev2y ago](https://www.amazon.co.uk/dp/B0CQT1JYB8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**3x Rio Mare Pesto with Tuna Pistachio and Lemon 130g**Rio Mare**£19.99**0.0★**▲ 151%**](https://www.amazon.co.uk/dp/B0BGLZ17KX) [**sportvibe Water Shoes Beach Shoes Lightweight Barefoot Aqua Quick Dry Breathable Swim for Women Men Surfing Running Driving Pool Yoga (Black 9 UK/43 EU)**sportvibe**£6.43**4.4★**▲ 145%**](https://www.amazon.co.uk/dp/B0D1CCG52P) [**Rio Mare Insalatissime Tuna Salad Mexican Style 160g**Rio Mare**£1.66**4.4★**▲ 47%**](https://www.amazon.co.uk/dp/B07DFMNF6V) [**Rio Mare Insalatissime Corn and Tuna Salad 160g with Prime Quality Tinned Fish Ready to Eat Healthy Meal Sustainably sourced**Rio Mare**£1.82**4.4★**▲ 32%**](https://www.amazon.co.uk/dp/B07DFJY7HC) [**John West On The Go French Tuna Pasta Salad 220 g Pot**John West**£1.99**4.1★**▲ 28%**](https://www.amazon.co.uk/dp/B004TEVXGI)
**~~View all trending →~~**
## **What buyers say about rio mare**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**37%
*“the taste is top notch”*
**Value For Money**10%
*“Well worth it”*
**Quality-Overall**10%
*“Excellent quality”*
**Nutritional Content**6%
*“best protein snack”*
**Flavor**5%
*“Amazing balance of flavours”*
**Comfort-Overall**4%
*“Comfortable”*
**Health Benefits-Overall**2%
*“Ideal for a healthy lunch on the go”*
**Size-Overall**2%
*“Correct fit”*
**Advertised Vs Actual Product**2%
*“As described”*
**Ease Of Use**2%
*“Very good and convenient”*
### **What buyers complain about **
**Quality-Overall**12%
*“Rio mare tuna fish low quality”*
**Value For Money**10%
*“It is more expensive”*
**Oily/Greasy**5%
*“Full of oil small amounts of tuna”*
**Size-Overall**5%
*“Not fit for purpose”*
**Spiciness**5%
*“Very spicy”*
**Taste-Overall**4%
*“Tastes disgusting”*
**Advertised Vs Actual Product**4%
*“dont be fooled by tv advertising on this product very disappointing”*
**Durability**4%
*“Don't expect them to last long”*
**Texture/Consistency-Overall**3%
*“A combination of bad textures”*
**Flavor**3%
*“the sweetcorn has no flavour”*
### **Top return reasons **
**Size-Overall**36%
**Quality-Overall**15%
**Thin**9%
**Feet Fit**7%
**Strength**6%
**Gap/Hole**4%
**Durability**3%
**Color**3%
**Material Quality**3%
**Width**2%
## **Common questions**
- **Is rio mare profitable to sell on Amazon United Kingdom?**
- The niche generates £178K/yr across 23 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +87.5%. Flapen's verdict: Worth a look (59/100).
- **How competitive is the rio mare niche?**
- 6 brands and 86 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 99% of demand.
- **What do buyers complain about in rio mare?**
- Top complaints mined from reviews: Quality-Overall, Value For Money, Oily/Greasy. The return rate is 0.2%.
- **When does demand for rio mare peak?**
- Demand peaks in May–Jun; the busiest month runs 5.7× the quietest.
- **What does it cost to enter the rio mare niche?**
- Listings span £1.66–£38.56; the average listing price is £8.52 (sweet spot $15–$100). The average incumbent carries 271 reviews — the moat a new listing must climb.
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