Is vitamin d 2000iu profitable to sell on Amazon United Kingdom?

The niche generates £97K/yr across 9 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -34.0%. Flapen's verdict: Skip it (32/100).

How competitive is the vitamin d 2000iu niche?

8 brands and 52 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 93% of demand.

What do buyers complain about in vitamin d 2000iu?

Top complaints mined from reviews: Dosage, Size-Overall, Vitamin. The return rate is 0.1%.

When does demand for vitamin d 2000iu peak?

Demand peaks in Jan–Feb–Mar; the busiest month runs 5.3× the quietest.

What does it cost to enter the vitamin d 2000iu niche?

Listings span £4.55–£13.31; the average listing price is £7.72 (sweet spot $15–$100). The average incumbent carries 7,673 reviews — the moat a new listing must climb.

vitamin d 2000iu

Skip it

Prices mostly outside the sweet spot ($4.55–$13.31) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Incredible15.9%

search→purchase rate — share of searches ending in a sale

Market size

Bad£97K

£97K/yr · 79K searches

Review moat

Bad7,672.56

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Avg price

Bad£7.72

avg listing price — sweet spot $15–$100

Brand share

Bad93%

top-5 brand share — brand-locked demand

Competition

Bad87%

top-5 click share — a locked-up shelf

Growth

Bad-34.0%

90-day search growth — must beat 0% to launch

Price range

Bad£4.55–£13.31

cheapest to priciest tracked listing — scored on the share inside $15–$100

According to Flapen's Amazon United Kingdom niche tracking, vitamin d 2000iu is a £97K/yr Amazon United Kingdom market (79K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Jan–Feb–Mar. Verdict: Skip it — 32/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

vitamin d 2000iu market data

Units sold / yr: 13K–15K; avg 1,000–1,250/product
Revenue / yr: £97K–£116K; units × avg price
Conversion rate: 15.9%
Avg BSR: #97
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 62 months
Avg seller age: 174 days

Competition & brand share

The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 flat

Sellers

Top-5 brand share

93%

Top 20: 100%

Top-5 click share

87%

Top 20: 100%

Open market

Vitabiotics Ultra29%
WeightWorld29%
417%
VitaPremium12%
Royal Oak Health6%
Igennus Healthcare Nutrition3%
Open — no brand owns it (2 brands, 4%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -34.0% search growth over the last 90 days.

Peak months: Jan, Feb, Mar · busiest ÷ quietest = 5.3×

Open Trend

Top vitamin d 2000iu search terms

vitamin d 2000iu31K/yr -36.3%16.1% conv.
vitamin d3 2000iu25K/yr -35.5%14.4% conv.
vitamin d 200011K/yr -29.7%17.2% conv.
vitamin d 2000 iu6K/yr -25.8%12.7% conv.
vitamin d3 2000 iu4K/yr -23.5%11.4% conv.
vitamin d3 20003K/yr -37.0%15.8% conv.

All search terms

Top vitamin d 2000iu 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Vitamin D Tablets 2000IU Vitabiotics Ultra-96 Count 1-Pack

Vitabiotics Ultra£4.554.7★13,169 rev

Vitamin D3 2000IU - 400 Tablets - 1+ Year Supply - 8mm Round Tablets - Vegetarian-Friendly & Non-GMO - 1 per Day - Vitamin D Supplements for Men & Women - Made in the UK

WeightWorld£6.644.6★9,559 rev

Vitamin D3 2000 IU Tablets 365 Small Easy to Swallow Vegetarian Tablets (1 Year Supply) Immune System & Bone Health Support Made in UK 4 HIM & HER

4£6.044.6★421 rev

Vitamin D 2 000 IU Optimal Strength Vitamin D3 Supplement 365 Easy to Swallow Softgels - Full Year Supply

VitaPremium£7.904.7★666 rev

WeightWorld£7.244.6★7,286 rev

Newest

by launch date

Vitamin D3 2000 IU Tablets 365 Small Easy to Swallow Vegetarian Tablets (1 Year Supply) Immune System & Bone Health Support Made in UK 4 HIM & HER

4£6.04421 rev

8mo ago

Royal Oak Health Vitamin D3 (Cholecalciferol) - High Strength Easy to Swallow Vitamin D Tablet Alternative Supplement for Immune Muscle Bones & Teeth (Vitamin D3 2000iu 180 Soft Gel Capsules)

Royal Oak Health£7.6165 rev

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

Nutrition Geeks£7.9517,521 rev

2y ago

Vitamin D 2 000 IU Optimal Strength Vitamin D3 Supplement 365 Easy to Swallow Softgels - Full Year Supply

VitaPremium£7.90666 rev

4y ago

WeightWorld£7.247,286 rev

5y ago

What buyers say about vitamin d 2000iu

What buyers praise and complain about, mined from review topics.

What buyers love

Value For Money19%

“Good price”

Vitamin18%

“great vitamin”

Quality-Overall17%

“Good quality and easy to swallow”

Ease Of Chewing/Swallowing13%

“Easy to swallow”

Advertised Vs Actual Product5%

“As advertised”

Ease Of Use3%

“Very convenient”

Side Effects3%

“dont leave any aftertaste”

Dosage2%

“Just the right dosage”

Efficiency2%

“Effective”

Nutritional Content1%

“Overall a reliable supplement that does exactly what its meant to do”

What buyers complain about

Dosage10%

“it looks as if the dosage is very high”

Size-Overall10%

“Packet is very tiny”

Vitamin9%

“Not the right type of Vitamin D for me I guess”

Nutritional Content5%

“Other products in the Nutrition Geeks line are a scam”

Language Issues4%

“At first I was disappointed to find that all the text on the container was in another language, however Ive now found that the label can be peeled back for details in English and other languages”

Functionality-Overall4%

“Doesn't seem to work”

Value For Money3%

“Cheap for a reason”

Advertised Vs Actual Product3%

“and NONE of them are what they claim”

Side Effects3%

“they made me ill”

Strength3%

“Either too strong or poorly formulated”

Top return reasons

Vitamin100%

Common questions

Is vitamin d 2000iu profitable to sell on Amazon United Kingdom?: The niche generates £97K/yr across 9 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -34.0%. Flapen's verdict: Skip it (32/100).
How competitive is the vitamin d 2000iu niche?: 8 brands and 52 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 93% of demand.
What do buyers complain about in vitamin d 2000iu?: Top complaints mined from reviews: Dosage, Size-Overall, Vitamin. The return rate is 0.1%.
When does demand for vitamin d 2000iu peak?: Demand peaks in Jan–Feb–Mar; the busiest month runs 5.3× the quietest.
What does it cost to enter the vitamin d 2000iu niche?: Listings span £4.55–£13.31; the average listing price is £7.72 (sweet spot $15–$100). The average incumbent carries 7,673 reviews — the moat a new listing must climb.