Vitamin K
prices mostly outside the sweet spot ($1.93–$15.74) — Vitamin K doesn't clear our bar today.
Flapen Score
Is Vitamin K profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Vitamin K is a £454K/yr Amazon United Kingdom market (407K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Aug–Sep. Verdict: Skip it — 46/100.
Vitamin K: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -29.7% over the last 90 days and 12.1% of searches end in a purchase.
£454K
revenue / yr
Who owns the niche?
The top 5 brands hold 71% of demand, so 29% of the market is open.
29%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.6★ — the gap to enter on.
0/100
page quality · 17 products
Top Vitamin K products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 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
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 datePure 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: brands, sellers & click share
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.
Brands
16 falling
Sellers
17
Top-5 brand share
71%
Top 20: 100%
Top-5 click share
69%
Top 20: 100%
Open market
25%
- WeightWorld25%
- Nutrition Geeks17%
- EVO NUTRITION14%
- Carlyle9%
- ALPHA016%
- Horbäach5%
Vitamin K demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Aug, Sep · busiest ÷ quietest = 5.1×
Top Vitamin K search terms shoppers use
The exact queries shoppers type, with 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
What reviews say buyers love and hate about Vitamin K
What buyers mention most, as a share of all reviews.
What buyers love
82% of reviews“Good quality and easy to swallow”
“Good price”
“Healthy vitamin”
“Easy to swallow”
“As advertised”
What buyers complain about
59% of reviews“it looks as if the dosage is very high”
“First of all the cap doesnt fit the bottle”
“Not the right type of Vitamin D for me I guess”
“Not working”
“Other brands are misleading”
Vitamin K return rate & reasons
Why buyers send it back, as a share of all return requests.
0.1%
Return rate
0%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Vitamin K questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
