vitamin d3 5000 iu
Skip itSoft demand (-37.5% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great7.9%search→purchase rate — share of searches ending in a sale
Brand share
Okay75%top-5 brand share — brands hold most of the demand
Avg price
Okay£10.01avg listing price — sweet spot $15–$100
Competition
Okay66%top-5 click share — leaders hold, buyers still browse
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad8,803.67avg incumbent reviews — the moat a new listing must climb
Price range
Bad£6.07–£16.24cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad£37K£37K/yr · 47K searches
Growth
Bad-37.5%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, vitamin d3 5000 iu is a £37K/yr Amazon United Kingdom market (47K searches/yr). The top 5 brands hold 75% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 36/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
vitamin d3 5000 iu market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- £30K–£40K
- units × avg price
- Conversion rate
- 7.9%
- Avg BSR
- #108
- Page quality
- 0%
- Prime
- 93%
- Sponsored
- 93%
- Out of stock
- 5.9%
- Avg brand age
- 59 months
- Avg seller age
- 168 days
Competition & brand share
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
27
Top-5 brand share
75%
Top 20: 100%
Top-5 click share
66%
Top 20: 100%
Open market
19%
- Royal Oak Health33%
- Healthy Origins13%
- NOW12%
- Nutrition Geeks11%
- VitaPremium8%
- Vitamaze - amazing life6%
Demand & seasonality
Weekly Amazon search volume, last 84 weeks — -37.5% search growth over the last 90 days.Peak months: Jan, Feb · busiest ÷ quietest = 1.8×
Top vitamin d3 5000 iu search terms
- vitamin d3 5000 iu12K/yr
- vitamin d 5000 iu8K/yr
- vitamin d 50000 iu tablets12K/yr
- vitamin d 60000 iu7K/yr
- vitamin d 50005K/yr
- vitamin d high strength 50000 iu tablets3K/yr
Top vitamin d3 5000 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 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Vitamin D3 5000 IU & Vitamin K2 100mcg (MK-7) x120 Capsules - High Strength Vitamin D & K2 Supplement for Men & Women Made in the UK by Royal Oak Health
Royal Oak Health£12.454.7★399 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
Healthy Origins High Strength Vitamin D3 5 000 UI Softgel Capsules - Immune Support Optimal Absorption - Year-Round Wellness for Bone Health and Vitality
Healthy Origins£12.324.7★364 rev
Now Foods Vitamin D3 Depot 5000 IU 1 Capsule Every 5 Days Cholecalciferol from Lanolin 120 Softgels Lab-Tested Gluten-Free Soy-Free GMO-Free
NOW£12.484.5★400 rev
Vitamin D3 K2 (5000 IU Vitamin D3 + Vitamin K2 MK7 100 mcg) Vitamins for Bones Teeth Muscle Function & Immune System. 6 Month Supply High Bioavailability & No Additives. Vitamaze
Vitamaze - amazing life£11.014.6★3,046 rev
Newest
by launch date
Vitamin D 4 000 IU Tablets Maximum Strength Vitamin D3 Supplement 365 Easy to Swallow Tablets - Full Year Supply
VitaPremium£7.402,259 rev
Vitamin D3 5000 IU & Vitamin K2 100mcg (MK-7) x120 Capsules - High Strength Vitamin D & K2 Supplement for Men & Women Made in the UK by Royal Oak Health
Royal Oak Health£12.45399 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£7.9517,521 rev
Now Foods Vitamin D3 Depot 5 000IU Cholecalciferol Highly Dosed 1 Capsule Every 5 Days 240 Softgels Lab-Tested Soy Free Gluten Free Non-GMO
NOW£15.48400 rev
Now Foods Vitamin D3 Depot 5000 IU 1 Capsule Every 5 Days Cholecalciferol from Lanolin 120 Softgels Lab-Tested Gluten-Free Soy-Free GMO-Free
NOW£12.48400 rev
Trending
90-day click momentum
Vitamin D3 5000iu - 365 Small Easy to Swallow Tablets (1 Year Supply) High Strength Vitamin D Tablets -UK Manufactured by BioPharmX
Biopharm-X£7.754.4★
Vitamin D 4 000 IU Tablets Maximum Strength Vitamin D3 Supplement 365 Easy to Swallow Tablets - Full Year Supply
VitaPremium£7.404.6★
Now Foods Vitamin D3 Depot 5000 IU 1 Capsule Every 5 Days Cholecalciferol from Lanolin 120 Softgels Lab-Tested Gluten-Free Soy-Free GMO-Free
NOW£12.484.5★
Vitamin D3 5000 IU & Vitamin K2 100mcg (MK-7) x120 Capsules - High Strength Vitamin D & K2 Supplement for Men & Women Made in the UK by Royal Oak Health
Royal Oak Health£12.454.7★
Vitamin D 4 000 IU Gel Capsules High Strength Vitamin D3 Supplement 365 Easy to Swallow Tablets - Full Year Supply
VitaPremium£6.764.7★
What buyers say about vitamin d3 5000 iu
What buyers praise and complain about, mined from review topics.What buyers love
“the capsules feel high quality”
“Excellent Price”
“As described good value vitamins”
“Small easily swallowed pill”
“As advertised”
“Easy and convenient”
“Just the right dosage”
“Havent noticed any negative side effects”
“just the right size”
“Immune system support”
What buyers complain about
“Not accurate dosage”
“Large capsules”
“my vitamin D levels were low”
“Doesn't taste of anything”
“Doesn't seem to work”
“This is a rubbish supplement with lots of chemicals”
“Cheap for a reason”
“Really clever deceptive marketing”
“Weak Product”
“do not purchase from nutrition geeks”
Top return reasons
Common questions
- Is vitamin d3 5000 iu profitable to sell on Amazon United Kingdom?
- The niche generates £37K/yr across 15 tracked products. 90-day search growth is -37.5%. Flapen's verdict: Skip it (36/100).
- How competitive is the vitamin d3 5000 iu niche?
- 12 brands and 27 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 75% of demand.
- What do buyers complain about in vitamin d3 5000 iu?
- Top complaints mined from reviews: Dosage, Size-Overall, Vitamin. The return rate is 0.1%.
- When does demand for vitamin d3 5000 iu peak?
- Demand peaks in Jan–Feb; the busiest month runs 1.8× the quietest.
- What does it cost to enter the vitamin d3 5000 iu niche?
- Listings span £6.07–£16.24; the average listing price is £10.01 (sweet spot $15–$100). The average incumbent carries 8,804 reviews — the moat a new listing must climb.