Vitamin D 1000iu
FailPrices span $3.13–$10.36, mostly outside the sweet spot, so Vitamin D 1000iu is a Fail.
- Flapen Score
- 36 / 100Ranks 1,876 of 2,035 Health & Personal Care niches · −12 vs the category median of 4836
- Market size
- £220K/yr178K searches / yr
- 90-day growth
- -46.6%search demand this quarter
- Competition
- 85%top-5 click share · 11 brands · 66 sellers
Flapen Score
Vitamin D 1000iu against its category
The dotted line is the Health & Personal Care average. Past it, Vitamin D 1000iu is stronger. Inside it, weaker.
Market
The Vitamin D 1000iu market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Vitamin D 1000iu 178K times last year and spent an estimated £220K. The top 5 brands take 85% of clicks. Demand peaks in Jan–Oct. Flapen scores it 36 out of 100, a Fail.
01 · Demand
An estimated 20.4% of those searches ended in a purchase.
Shoppers searched for this 178K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 20.4% of those searches ended in a purchase. Searches in the last 90 days moved -46.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated £220K a year.
- Searches, last 12 months
- 178K
- Growth, 90 days vs prior 90
- -46.6%
- Conversion, latest week
- 20.4%
- Market size, estimated
- £220Ka year
- Peak month
- October2.9× the quietest month
- Top search term
- vitamin d 1000iu80K searches a year
02 · Price
A sale here is worth £6.05.
Listings sell for £6.05 on average, from £3.13 to £10.36. Amazon reports units sold in ranges. This niche sold 30K to 40K a year. The average listing sells 2,500 to 3,000 of them. At £6.05 that is £15K to £18K a year per listing.
- Average price
- £6.05under the $15 to $100 sweet spot
- Price range
- £3.13–£10.36
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 30K–40K
- Units per listing a year
- 2,500–3,000
- Revenue per listing a year
- £15K–£18K
- Returns
- 0.1%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is ads and reviews.
91% 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 #70 within Vitamins. It carries 5,569 reviews at 4.66 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 91%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #70in Vitamins
- Average rating
- 4.66 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 5,569per listing
- Listings tracked
- 11
04 · Newcomers
0 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 70 months on average, so the names here are established.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 70 months
Products
Top Vitamin D 1000iu 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 D Tablets 1000IU Vitabiotics Ultra
- Price
- £3.13
- Rating
- 4.7/5
- Reviews
- 25,174
- Age
- 16y ago

Vitamin D 1000iu - 1 Year Supply 365 Easy-Swallow Vitamin D Tablets Vegetarian D3 High Strength Immune Support Supplement - Awarded by The Independent UK
- Price
- £5.75
- Rating
- 4.6/5
- Reviews
- 6,925
- Age
- 5y ago

Vitamin D 1 000 IU Optimal Strength Vitamin D3 Supplement 365 Easy to Swallow Softgels - Full Year Supply
- Price
- £7.88
- Rating
- 4.7/5
- Reviews
- 656
- Age
- 4y ago

Fultium Vitamin D3 1000 IU (25g) Immune Bone & Muscle Support | High Strength | 90 Tablets | Daily Enhanced | From the UKs No.1 Vitamin D Prescription Brand | Vegetarian NonGMO | Food Supplement
- Price
- £3.37
- Rating
- 4.6/5
- Reviews
- 56
- Age
- 5mo ago

Vitamin D 1000iu - 1+ Year Supply - High Strength 400 Easy Swallow Tablets - One a Day High Strength Cholecalciferol VIT D3 - Vegetarian Supplement - Microtablets - Made in UK
- Price
- £7.11
- Rating
- 4.6/5
- Reviews
- 6,903
- Age
- 5y ago
Trending
estimated 90-day click momentum
Fultium Vitamin D3 1000 IU (25g) Immune Bone & Muscle Support | High Strength | 90 Tablets | Daily Enhanced | From the UKs No.1 Vitamin D Prescription Brand | Vegetarian NonGMO | Food Supplement
- Price
- £3.37
- Rating
- 4.6/5
- Reviews
- 56
- Age
- 5mo ago

Vitamin D 1 000 IU Optimal Strength Vitamin D3 Supplement 365 Easy to Swallow Softgels - Full Year Supply
- Price
- £7.88
- Rating
- 4.7/5
- Reviews
- 656
- Age
- 4y ago

Nutravita Vitamin D 1000 IU (25g) 365 VIT D Softgel Capsules Full Year Supply for Maintenance of Healthy Immune System Muscles Bones & Teeth Vitamin D3 Cholecalciferol Made in The UK
- Price
- £6.93
- Rating
- 4.7/5
- Reviews
- 4,415
- Age
- 9y ago

Vitamin D Tablets 1000IU Vitabiotics Ultra
- Price
- £3.13
- Rating
- 4.7/5
- Reviews
- 25,174
- Age
- 16y ago

Vitamin D 1000iu - 1 Year Supply 365 Easy-Swallow Vitamin D Tablets Vegetarian D3 High Strength Immune Support Supplement - Awarded by The Independent UK
- Price
- £5.75
- Rating
- 4.6/5
- Reviews
- 6,925
- Age
- 5y ago
Newest
by launch date
Fultium Vitamin D3 1000 IU (25g) Immune Bone & Muscle Support | High Strength | 90 Tablets | Daily Enhanced | From the UKs No.1 Vitamin D Prescription Brand | Vegetarian NonGMO | Food Supplement
- Price
- £3.37
- Rating
- 4.6/5
- Reviews
- 56
- Age
- 5mo ago

Zipvit Vitamin D 1000IU 1 Year Supply 365 Vegetarian D3 Tablets High Absorption Easy-to-Swallow Vitamin D Tablets for Immune Bone & Muscle Health
- Price
- £6.10
- Rating
- 4.7/5
- Reviews
- 85
- Age
- 1y ago

Vitamin D3 1000iu - 1 Year Supply 365 Easy-Swallow VIT D Tablets Vegetarian Optimal Strength Immune Support Supplement
- Price
- £3.49
- Rating
- 4.7/5
- Reviews
- 858
- Age
- 3y ago

Vitamin D 1 000 IU Optimal Strength Vitamin D3 Supplement 365 Easy to Swallow Softgels - Full Year Supply
- Price
- £7.88
- Rating
- 4.7/5
- Reviews
- 656
- Age
- 4y ago

Vitamin D 1000iu - 1+ Year Supply - High Strength 400 Easy Swallow Tablets - One a Day High Strength Cholecalciferol VIT D3 - Vegetarian Supplement - Microtablets - Made in UK
- Price
- £7.11
- Rating
- 4.6/5
- Reviews
- 6,903
- Age
- 5y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 85% of clicks. A locked shelf that new listings rarely crack.
Brands
11 rising
Sellers
66
Est. top-5 brand share
85%
Top 20: 100%
Est. top-5 click share
85%
Top 20: 100%
Open market
11%
- Vitabiotics Ultra36%
- Nutrition Geeks23%
- VitaPremium9%
- Fultium8%
- Incite Nutrition8%
- Nu U Nutrition5%
- Open — no brand owns it (5 brands, 11%)
Demand
Vitamin D 1000iu search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Oct · busiest ÷ quietest = 2.9×
Search terms
Top Vitamin D 1000iu search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- vitamin d 1000iu80K/yr
- vitamin d3 1000 iu31K/yr
- vitamin d 100015K/yr
- vitamin d 25mcg/1000iu6K/yr
- vitamin d tablets 1000iu8K/yr
- vitamin d 1000 iu8K/yr
- vitamin d3 1000iu7K/yr
- vit d 1000iu5K/yr
- vitamin d 25mcg3K/yr
- ultra vitamin d 1000iu4K/yr
Reviews and returns
What reviews say buyers love and hate about Vitamin D 1000iu
We read the reviews and the return reasons for every product selling here.
“its a small bottle”
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.
15 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 D 1000iu 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









