Vitamin K
FailPrices span $1.93–$15.74, mostly outside the sweet spot, so Vitamin K is a Fail.
- Flapen Score
- 46 / 100Ranks 1,173 of 2,035 Health & Personal Care niches · −2 vs the category median of 4846
- Market size
- £454K/yr407K searches / yr
- 90-day growth
- -29.7%search demand this quarter
- Competition
- 69%top-5 click share · 16 brands · 17 sellers
Flapen Score
Vitamin K against its category
The dotted line is the Health & Personal Care average. Past it, Vitamin K is stronger. Inside it, weaker.
Market
The Vitamin K market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Vitamin K 407K times last year and spent an estimated £454K. The top 5 brands take 71% of clicks. Demand peaks in Aug–Sep. Flapen scores it 46 out of 100, a Fail.
01 · Demand
An estimated 12.1% of those searches ended in a purchase.
Shoppers searched for this 407K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 12.1% of those searches ended in a purchase. Searches in the last 90 days moved -29.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated £454K a year.
- Searches, last 12 months
- 407K
- Growth, 90 days vs prior 90
- -29.7%
- Conversion, latest week
- 12.1%
- Market size, estimated
- £454Ka year
- Peak month
- August5.1× the quietest month
- Top search term
- vitamin k2139K searches a year
02 · Price
A sale here is worth £9.23.
Listings sell for £9.23 on average, from £1.93 to £15.74. Amazon reports units sold in ranges. This niche sold 40K to 50K a year. The average listing sells 1,500 to 2,000 of them. At £9.23 that is £14K to £18K a year per listing.
- Average price
- £9.23under the $15 to $100 sweet spot
- Price range
- £1.93–£15.74
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 40K–50K
- Units per listing a year
- 1,500–2,000
- Revenue per listing a year
- £14K–£18K
- Returns
- 0.1%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
76% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #185 within Vitamins. It carries 2,261 reviews at 4.59 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 76%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #185in Vitamins
- Average rating
- 4.59 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 2,261per listing
- Listings tracked
- 17
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 50 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 50 months
Products
Top Vitamin K products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Vitamin K2 MK7 200mcg - 1 Year Supply - 365 Vegan Tablets - 1 a Day
- Price
- £12.02
- Rating
- 4.7/5
- Reviews
- 3,410
- Age
- 4y ago

Vitamin D3 4000 iu & Vitamin K2 MK7 100g - 1 Year Supply 365 Easy-Swallow Vitamin D3 K2 Tablets 1-A-Day High Strength Vegetarian D3 and K2 Vitamin Supplements UK Made Vitamin D Tablets
- Price
- £7.95
- Rating
- 4.6/5
- Reviews
- 17,521
- Age
- 2y ago

EVO NUTRITION Vitamin K2 MK-7 200mcg | 365 Vegetarian and Vegan Tablets (not Capsules) | 1-A-Day | Supports Maintenance of Normal Bones | One Years Supply of High Strength Vitamin K2 Menaquinone MK7
- Price
- £11.50
- Rating
- 4.6/5
- Reviews
- 3,226
- Age
- 6y ago

Vitamin K2 MK7 200mcg | High Strength | 180 Vegan Tablets | Menaquinone-MK7 | Suitable for Vegetarians and Vegans | By Carlyle
- Price
- £5.86
- Rating
- 4.6/5
- Reviews
- 514
- Age
- 2y ago

Vitamin K2 MK7 200ug | 365 High Strength Tablets | Menaquinone MK-7 | Suitable for Vegetarians and Vegans | by Horbaach
- Price
- £8.26
- Rating
- 4.5/5
- Reviews
- 1,135
- Age
- 5y ago
Trending
estimated 90-day click momentum
ECO-VITS Vitamin K2 MK7 500MCG 30 Capsules Derived from Natto Recyclable Packaging Sealed Pouch Suitable for Vegetarians
- Price
- £5.30
- Rating
- 4.4/5
- Reviews
- 9
- Age
- 5y ago

Pure Nutrition Vitamin K Complex K1 + K2 | 2250 mcg | 120 Tab | Full Spectrum K Vitamin Supplement with K1 1000mcg K2 as MK4 1000mcg + K2 as MK7 250 mcg | Non GMO | Gluten Free
- Price
- £10.31
- Rating
- 4.6/5
- Reviews
- 31
- Age
- 1y ago

Vitamin K2 MK-7 100mcg 120 Vegan Capsules Fermented Natto Based Vitamin K Resealable and Recyclable Pouch by Alpha01
- Price
- £5.87
- Rating
- 4.7/5
- Reviews
- 760
- Age
- 6y ago

Vitamin K2 MK7 200mcg - 1 Year Supply - 365 Vegan Tablets - 1 a Day
- Price
- £12.02
- Rating
- 4.7/5
- Reviews
- 3,410
- Age
- 4y ago

Vitamin K2 MK-7 600mcg - 120 Vegan Capsules - Fermented Natto Based Vegan Vitamin K - Supports Bone Health Resealable and Recyclable Pouch by Alpha01
- Price
- £7.27
- Rating
- 4.7/5
- Reviews
- 760
- Age
- 6y ago
Newest
by launch date
Pure Nutrition Vitamin K Complex K1 + K2 | 2250 mcg | 120 Tab | Full Spectrum K Vitamin Supplement with K1 1000mcg K2 as MK4 1000mcg + K2 as MK7 250 mcg | Non GMO | Gluten Free
- Price
- £10.31
- Rating
- 4.6/5
- Reviews
- 31
- Age
- 1y ago

Vitamin D3 4000 iu & Vitamin K2 MK7 100g - 1 Year Supply 365 Easy-Swallow Vitamin D3 K2 Tablets 1-A-Day High Strength Vegetarian D3 and K2 Vitamin Supplements UK Made Vitamin D Tablets
- Price
- £7.95
- Rating
- 4.6/5
- Reviews
- 17,521
- Age
- 2y ago

Vitamin K2 MK7 200mcg | High Strength | 180 Vegan Tablets | Menaquinone-MK7 | Suitable for Vegetarians and Vegans | By Carlyle
- Price
- £5.86
- Rating
- 4.6/5
- Reviews
- 514
- Age
- 2y ago

Bulk Vitamin K2 Tablets 75ug 90 Tablets
- Price
- £1.93
- Rating
- 4.2/5
- Reviews
- 114
- Age
- 3y ago

Vitamin K2 MK7 200mcg - 1 Year Supply - 365 Vegan Tablets - 1 a Day
- Price
- £12.02
- Rating
- 4.7/5
- Reviews
- 3,410
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 69% of clicks. Leaders hold, but buyers still shop past them.
Brands
16 falling
Sellers
17
Est. top-5 brand share
71%
Top 20: 100%
Est. top-5 click share
69%
Top 20: 100%
Open market
25%
- WeightWorld25%
- Nutrition Geeks17%
- EVO NUTRITION14%
- Carlyle9%
- ALPHA016%
- Horbäach5%
Demand
Vitamin K search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Aug, Sep · busiest ÷ quietest = 5.1×
Search terms
Top Vitamin K search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- vitamin k2139K/yr
- k2 vitamin supplements63K/yr
- vitamin k51K/yr
- vitamin k2 mk731K/yr
- k2 mk722K/yr
- vitamin k2 high strength13K/yr
- vit k211K/yr
- k2 vitamin10K/yr
- vit k4K/yr
- vit k2 mk74K/yr
Reviews and returns
What reviews say buyers love and hate about Vitamin K
We read the reviews and the return reasons for every product selling here.
“it looks as if the dosage is very high”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
14 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Vitamin K questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









