vitamin d3 10000 iu
Skip itSoft demand (-45.6% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great7.5%search→purchase rate — share of searches ending in a sale
Avg price
Good£14.01avg listing price — sweet spot $15–$100
Price range
Good£3.13–£30.08cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay82%top-5 brand share — brands hold most of the demand
Competition
Okay69%top-5 click share — leaders hold, buyers still browse
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad6,977.08avg incumbent reviews — the moat a new listing must climb
Market size
Bad£51K£51K/yr · 49K searches
Growth
Bad-45.6%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, vitamin d3 10000 iu is a £51K/yr Amazon United Kingdom market (49K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Oct. Verdict: Skip it — 37/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
vitamin d3 10000 iu market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- £42K–£56K
- units × avg price
- Conversion rate
- 7.5%
- Avg BSR
- #108
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 9.0%
- Avg brand age
- 60 months
- Avg seller age
- 175 days
Competition & brand share
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.Brands
11 falling
Sellers
57
Top-5 brand share
82%
Top 20: 100%
Top-5 click share
69%
Top 20: 100%
Open market
14%
- Healthy Origins41%
- NOW17%
- BioImpact9%
- Nutrition Geeks9%
- Vortexonix7%
- NUTRALIE4%
- Open — no brand owns it (5 brands, 14%)
Demand & seasonality
Weekly Amazon search volume, last 101 weeks — -45.6% search growth over the last 90 days.Peak months: Oct · busiest ÷ quietest = 2.3×
Top vitamin d3 10000 iu search terms
- vitamin d3 10000 iu16K/yr
- vitamin d 10000iu14K/yr
- vitamin d 100006K/yr
- vitamin d 10000iu high strength4K/yr
- d3 10000 iu3K/yr
- vitamin d3 10000iu4K/yr
- vit d3 10000iu2K/yr
Top vitamin d3 10000 iu 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
Healthy Origins Vitamin D3 Softgels Each with 10 000 IU 120 Softgels Gluten-Free Soy-Free
Healthy Origins£16.244.6★386 rev
Now Foods Vitamin D3 Depot 10000 IU 1 Capsule Every 10 Days Cholecalciferol from Lanolin 120 Softgels Lab-Tested Gluten Free Soy Free Non GMO
NOW£15.024.6★260 rev
Healthy Origins Vitamin D3 Softgels Each with 10 000 IU 360 Capsules Gluten-Free Soy-Free GMO-Free
Healthy Origins£26.894.7★545 rev
BIOIMPACT Vitamin D3 10 000 IU Softgels | High Strength | 401 Easy to Swallow Softgels | More Than Full Year Supply | Supports Immune System & Bone Health | Non-GMO & Gluten-Free | UK Manufactured
BioImpact£30.084.7★87 rev
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
Nutrition Geeks£7.954.6★17,521 rev
Newest
by launch date
120 Count Vitamin D3 K2 Supplement Softgel 2 in 1 Vitamins D & K Complex Vitamin D3 K2 10000 IU Coconut Oil Supplement Softgel Immune Heart Health Support
Vortexonix£7.60130 rev
Premium Vitamin D3 & Vitamin K2 (MK-7) 120 Virgin Coconut Oil Softgels 2 in 1 Vitamin D3 K2 Supplement Support Immune Bones & Muscle Health Easy to Swallow and Absorb | Gluten Free
Bibonse£9.4696 rev
BIOIMPACT Vitamin D3 10 000 IU Softgels | High Strength | 401 Easy to Swallow Softgels | More Than Full Year Supply | Supports Immune System & Bone Health | Non-GMO & Gluten-Free | UK Manufactured
BioImpact£30.0887 rev
Premium Vitamin D3 & Vitamin K2 (MK-7) Softgels 120 Count Easy-Swallow VIT D3 K2 with Coconut Oil Gluten Free High Strength Vitamin D3 and K2 Supplements
XAYGHE£9.14295 rev
Now Foods Vitamin D3 Depot 10000 IU 1 Capsule Every 10 Days Cholecalciferol from Lanolin 120 Softgels Lab-Tested Gluten Free Soy Free Non GMO
NOW£15.02260 rev
Trending
90-day click momentum
Vitamin D3 and K2 10 000 IU - D3 K2 MK7 with Vitamin C and Extra Virgin Olive Oil - 60 Softgels Vitamin D Complex Nutralie
NUTRALIE£13.674.5★
Premium Vitamin D3 & Vitamin K2 (MK-7) 120 Virgin Coconut Oil Softgels 2 in 1 Vitamin D3 K2 Supplement Support Immune Bones & Muscle Health Easy to Swallow and Absorb | Gluten Free
Bibonse£9.464.5★
Healthy Origins Vitamin D3 Softgels Each with 10 000 IU 120 Softgels Gluten-Free Soy-Free
Healthy Origins£16.244.6★
120 Count Vitamin D3 K2 Supplement Softgel 2 in 1 Vitamins D & K Complex Vitamin D3 K2 10000 IU Coconut Oil Supplement Softgel Immune Heart Health Support
Vortexonix£7.604.4★
Vitamin D Tablets 1000IU Vitabiotics Ultra
Vitabiotics Ultra£3.134.7★
What buyers say about vitamin d3 10000 iu
What buyers praise and complain about, mined from review topics.What buyers love
“the capsules feel high quality”
“Good Value”
“Healthy vitamin”
“easy to consume with meal”
“As advertised”
“Easy and convenient”
“have much more energy”
“dont leave any aftertaste”
“Immune system support”
“Just the right dosage”
What buyers complain about
“it looks as if the dosage is very high”
“Large capsules”
“Not the right type of Vitamin D for me I guess”
“It doesnt have a funny taste”
“Not working”
“Waste of money”
“Really clever deceptive marketing”
“Now they are little white chalk tablets”
“Either too strong or poorly formulated”
“Weak Product”
Top return reasons
Common questions
- Is vitamin d3 10000 iu profitable to sell on Amazon United Kingdom?
- The niche generates £51K/yr across 13 tracked products. 90-day search growth is -45.6%. Flapen's verdict: Skip it (37/100).
- How competitive is the vitamin d3 10000 iu niche?
- 11 brands and 57 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 82% of demand.
- What do buyers complain about in vitamin d3 10000 iu?
- Top complaints mined from reviews: Dosage, Size-Overall, Vitamin. The return rate is 0.1%.
- When does demand for vitamin d3 10000 iu peak?
- Demand peaks in Oct; the busiest month runs 2.3× the quietest.
- What does it cost to enter the vitamin d3 10000 iu niche?
- Listings span £3.13–£30.08; the average listing price is £14.01 (sweet spot $15–$100). The average incumbent carries 6,977 reviews — the moat a new listing must climb.