diet food
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible17.4%search→purchase rate — share of searches ending in a sale
Review moat
Good650.23avg incumbent reviews — the moat a new listing must climb
Growth
Okay+14.5%90-day search growth — must beat 0% to launch
Competition
Okay69%top-5 click share — leaders hold, buyers still browse
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad£72K£72K/yr · 131K searches
Avg price
Bad£3.18avg listing price — sweet spot $15–$100
Brand share
Bad100%top-5 brand share — brand-locked demand
Price range
Bad£1.86–£9.85cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, diet food is a £72K/yr Amazon United Kingdom market (131K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 39/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
diet food market data
- Units sold / yr
- 25K–30K
- avg 1,500–2,000/product
- Revenue / yr
- £80K–£95K
- units × avg price
- Conversion rate
- 17.4%
- Avg BSR
- #0
- Page quality
- 0%
- Prime
- 92%
- Sponsored
- 46%
- Out of stock
- 2.8%
- Avg brand age
- 71 months
- Avg seller age
- 164 days
Competition & brand share
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.Brands
4 rising
Sellers
47
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
69%
Top 20: 100%
Open market
0%
- Nestlé79%
- Shredded Wheat10%
- Kellogg's6%
- Frosted Mini-Wheats5%
Demand
Weekly Amazon search volume, last 42 weeks — +14.5% search growth over the last 90 days.Top diet food search terms
- shredded wheat71K/yr
- frosted wheats25K/yr
- kelloggs frosted wheats10K/yr
- shredded wheat bitesize6K/yr
- blueberry wheats5K/yr
- wheats5K/yr
- kelloggs wheats3K/yr
- wheat cereal3K/yr
- shredded wheat cereal3K/yr
Top diet food 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.
All 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nestlé Cereals - Shredded Wheat Breakfast Cereal - 30 Crunchy Wholegrain Biscuits High Fibre No Added Sugar
Nestlé£3.014.7★1,693 rev
Nestlé Cereals - Shredded Wheat Breakfast Cereal - Bitesize Crunchy Wholegrain Biscuits High Fibre No Added Sugar Or Salt - 625g
Nestlé£2.844.7★409 rev
Nestlé Cereals - Shredded Wheat Breakfast Cereal - Bitesize Crunchy Wholegrain Biscuits High Fibre No Added Sugar - 720g
Nestlé£2.914.7★1,693 rev
Nestlé Cereals - Shredded Wheat Breakfast Cereal - BitesizeHoney Nut Wholegrain Biscuits High Fibre No Added Sugar - 500g
Nestlé£2.794.7★570 rev
Nestlé Cereals - Shredded Wheat Breakfast Cereal - BitesizeBlueberry Wholegrain Biscuits High Fibre No Added Sugar - 450g
Shredded Wheat£2.414.6★477 rev
Newest
by launch date
Nestlé Cereals - Shredded Wheat Breakfast Cereal - Bitesize Raisin Wholegrain Biscuits High Fibre Vegan - 450g
Nestlé£3.167 rev
Kelloggs Frosted Mini-Wheats Breakfast Cereal Childrens Cereal Family Breakfast Original 473.6 g Box (1 Box)
Frosted Mini-Wheats£9.85191 rev
Nestlé Cereals - Shreddies Breakfast Cereal - Bitesize Wholegrain Wheat Cereal - The Frosted One - High Fibre 5 Vitamins & Iron - 600g
Nestlé£2.9585 rev
Nestlé Cereals - Shredded Wheat Breakfast Cereal - BitesizeBlueberry Wholegrain Biscuits High Fibre No Added Sugar - 450g
Shredded Wheat£2.41477 rev
Nestlé Cereals - Shredded Wheat Breakfast Cereal - Bitesize Apricot Wholegrain Biscuits High Fibre Vegan - 450g
Nestlé£2.40329 rev
Trending
90-day click momentum
Nestlé Cereals - Shredded Wheat Breakfast Cereal - Bitesize Red Berries & Vanilla Wholegrain Biscuits High Fibre No Added Sugar - 450g
Nestlé£2.624.6★
Kelloggs Frosted Mini-Wheats Breakfast Cereal Childrens Cereal Family Breakfast Original 473.6 g Box (1 Box)
Frosted Mini-Wheats£9.854.7★
Nestlé Cereals - Shredded Wheat Breakfast Cereal - Bitesize Raisin Wholegrain Biscuits High Fibre Vegan - 450g
Nestlé£3.164.8★
Nestlé Cereals - Shreddies Breakfast Cereal - Bitesize Wholegrain Wheat Cereal - The Frosted One - High Fibre 5 Vitamins & Iron - 600g
Nestlé£2.954.6★
Nestlé Cereals - Shredded Wheat Breakfast Cereal - BitesizeHoney Nut Wholegrain Biscuits High Fibre No Added Sugar - 500g
Nestlé£2.794.7★
What buyers say about diet food
What buyers praise and complain about, mined from review topics.What buyers love
“Delicious with fruit added”
“reasonable price”
“Very good quality”
“Nice healthy breakfast”
“Nice change from oversweet cereals”
“Tasty”
“Simple, Healthy And Keeps Me Full”
“Delivers what it says on the box”
“They stay crunchy reasonably well in milk”
“This is super practical”
What buyers complain about
“Awful after taste of mould”
“full of sugar”
“false advertisement”
“lumpy on the mini wheats that it went in the bin”
“small”
“Last reaction to any foodstuffs I had was when I was 6”
“Scrumptious”
“Hard to get”
“Its berry shreddies”
“Only criticism I have is there expensive for the size”
Common questions
- Is diet food profitable to sell on Amazon United Kingdom?
- The niche generates £72K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +14.5%. Flapen's verdict: Skip it (39/100).
- How competitive is the diet food niche?
- 4 brands and 47 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in diet food?
- Top complaints mined from reviews: Taste-Overall, Sweetness, Advertised Vs Actual Product. The return rate is 0.0%.
- What does it cost to enter the diet food niche?
- Listings span £1.86–£9.85; the average listing price is £3.18 (sweet spot $15–$100). The average incumbent carries 650 reviews — the moat a new listing must climb.