Is vitamin d pregnancy supplement profitable to sell on Amazon United Kingdom?

The niche generates £90K/yr across 11 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +25.5%. Flapen's verdict: Skip it (40/100).

How competitive is the vitamin d pregnancy supplement niche?

8 brands and 119 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 91% of demand.

What do buyers complain about in vitamin d pregnancy supplement?

Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Side Effects. The return rate is 0.1%.

When does demand for vitamin d pregnancy supplement peak?

Demand peaks in Jan–Feb–Mar–Oct; the busiest month runs 7.8× the quietest.

What does it cost to enter the vitamin d pregnancy supplement niche?

Listings span £2.75–£10.58; the average listing price is £6.08 (sweet spot $15–$100). The average incumbent carries 3,838 reviews — the moat a new listing must climb.

vitamin d pregnancy supplement

Skip it

Prices mostly outside the sweet spot ($2.75–$10.58) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Incredible15.2%

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

Growth

Good+25.5%

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

Review moat

Okay3,837.73

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Brand share

Bad91%

top-5 brand share — brand-locked demand

Market size

Bad£90K

£90K/yr · 97K searches

Avg price

Bad£6.08

avg listing price — sweet spot $15–$100

Competition

Bad81%

top-5 click share — a locked-up shelf

Price range

Bad£2.75–£10.58

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

According to Flapen's Amazon United Kingdom niche tracking, vitamin d pregnancy supplement is a £90K/yr Amazon United Kingdom market (97K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Jan–Feb–Mar–Oct. Verdict: Skip it — 40/100.

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

vitamin d pregnancy supplement market data

Units sold / yr: 13K–15K; avg 1,000–1,250/product
Revenue / yr: £76K–£91K; units × avg price
Conversion rate: 15.2%
Avg BSR: #8
Page quality: 0%
Prime: 100%
Sponsored: 91%
Out of stock: 1.7%
Avg brand age: 57 months
Avg seller age: 166 days

Competition & brand share

The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 falling

Sellers

119

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

81%

Top 20: 100%

Open market

Vitabiotics Ultra32%
Pregnacare26%
Natures Aid17%
SunVit-D310%
Physis7%
NEW LEAF PRODUCTS5%
Open — no brand owns it (2 brands, 4%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +25.5% search growth over the last 90 days.

Peak months: Jan, Feb, Mar, Oct · busiest ÷ quietest = 7.8×

Open Trend

Top vitamin d pregnancy supplement search terms

folic acid pregnancy74K/yr +39.5%14.7% conv.
folic acid and vitamin d13K/yr -0.8%7.5% conv.
folic acid and vitamin d pregnancy3K/yr -10.3%8.1% conv.
pregnancy folic acid2K/yr +2.3%11.7% conv.
folic acid for pregnancy3K/yr -22.5%14.3% conv.
folic acid tablets for pregnancy2K/yr -72.0%12.4% conv.

All search terms

Top vitamin d pregnancy supplement 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 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Vitabiotics Ultra Folic Acid Tablets 400 mcg Vitamin B12 - 60 Tablets

Vitabiotics Ultra£3.004.7★5,678 rev

Natures Aid Folic Acid 400mcg Supports Prenatal Health Red Blood Cell Formation DNA Synthesis Vegan Non-GMO Gluten-Free High Potency Natural Supplement 90 Tablets

Natures Aid£3.434.7★7,007 rev

Pregnacare MAX Pregnancy Vitamins - UKs No.1 Pregnancy Brand. Greater Prenatal Care for Women Supplement with Added Omega-3 DHA for Normal Brain and Eye Development

Pregnacare£9.984.7★6,112 rev

SunVit-Pro Folic Acid Tablets 400mcg Pregnancy Supplement for Women Supports Red Blood Cell Formation Health & B9 Vitamin Prenatal Vitamins Vegan & Gluten-Free 90 Count

SunVit-D3£4.614.5★6 rev

Pregnacare Original Formula Tablets During Pregnancy Support Vitamins and Supplements 30 Tablets

Pregnacare£2.754.7★12,809 rev

Newest

by launch date

SunVit-Pro Folic Acid Tablets 400mcg Pregnancy Supplement for Women Supports Red Blood Cell Formation Health & B9 Vitamin Prenatal Vitamins Vegan & Gluten-Free 90 Count

SunVit-D3£4.616 rev

4mo ago

Physis£9.1626 rev

1y ago

Folic Acid Pregnancy Tablets High Strength Folate Vitamins - 120 Tablets Folic Acid Vegan Prenatal Vitamins for Women 400mcg Vitamin B9 Prenatal - Pregnancy Supplements - UK Made

NEW LEAF PRODUCTS£6.71712 rev

3y ago

PuroSure Folic Acid Tablets 400 mcg 90 Tablets - Vitamin B9 Tablets - 3 Month Supply - Pregnancy Care - Normal Function of Immune System & Maternal Tissue Growth During Pregnancy

PuroSure£3.04240 rev

3y ago

Known Pregnancy Support Gummies with 400mcg Folic Acid Raspberry Flavour Vegan Prenatal Multivitamin Gummy Supplement with Vitamin D3 K C E B12 Biotin & Zinc 1 Month Supply

Known£10.58350 rev

5y ago

What buyers say about vitamin d pregnancy supplement

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

What buyers love

Quality-Overall17%

“Does what folic acid does so no complaints”

Value For Money12%

“Worth every penny”

Fertility/Conception12%

“helped me to have a healthy pregnancy”

Taste-Overall9%

“No nasty tastes”

Ease Of Chewing/Swallowing9%

“Soft chew, easy to consume”

Advertised Vs Actual Product7%

“As described”

Vitamin6%

“I must say they are affordable vitamin”

Ease Of Use4%

“Easy to use”

Nutritional Content4%

“Good basic folic acid supplement that does exactly what its meant to”

Side Effects3%

“No side effects”

What buyers complain about

Functionality-Overall11%

“Didn't work for me”

Quality-Overall9%

“may need some improvements”

Side Effects8%

“I have no idea if these have helped or its just time healing my body”

Sweetness7%

“Too much sugar”

Vitamin4%

“Vitamin blends can sometimes be heavy on the stomach”

Iron4%

“so I cannot take supplements containing iron”

Size-Overall4%

“The tablet is too big”

Advertised Vs Actual Product3%

“not as per image”

Value For Money3%

“Not sure they're worth it”

Acid Regulator/Stomach Ache Relief3%

“Not good for everyone, bad acid reflux and nausea”

Top return reasons

Advertised Vs Actual Product100%

Common questions

Is vitamin d pregnancy supplement profitable to sell on Amazon United Kingdom?: The niche generates £90K/yr across 11 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +25.5%. Flapen's verdict: Skip it (40/100).
How competitive is the vitamin d pregnancy supplement niche?: 8 brands and 119 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in vitamin d pregnancy supplement?: Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Side Effects. The return rate is 0.1%.
When does demand for vitamin d pregnancy supplement peak?: Demand peaks in Jan–Feb–Mar–Oct; the busiest month runs 7.8× the quietest.
What does it cost to enter the vitamin d pregnancy supplement niche?: Listings span £2.75–£10.58; the average listing price is £6.08 (sweet spot $15–$100). The average incumbent carries 3,838 reviews — the moat a new listing must climb.