Is vitamin d3 3000 iu profitable to sell on Amazon United States?

The niche generates $80K/yr across 19 tracked products. 90-day search growth is -17.9%. Flapen's verdict: Skip it (40/100).

How competitive is the vitamin d3 3000 iu niche?

11 brands and 117 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 85% of demand.

What do buyers complain about in vitamin d3 3000 iu?

Top complaints mined from reviews: Vitamin, Size-Overall, Dosage. The return rate is 0.0%.

When does demand for vitamin d3 3000 iu peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the vitamin d3 3000 iu niche?

Listings span $8.56–$25.09; the average listing price is $13.62 (sweet spot $15–$100). The average incumbent carries 49,801 reviews — the moat a new listing must climb.

vitamin d3 3000 iu

Skip it

A deep review moat (49,801 avg reviews) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Great9.9%

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

Avg price

Good$13.62

avg listing price — sweet spot $15–$100

Price range

Good$8.56–$25.09

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

Brand share

Okay85%

top-5 brand share — brands hold most of the demand

Competition

Okay67%

top-5 click share — leaders hold, buyers still browse

Market size

Bad$80K

$80K/yr · 59K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Growth

Bad-17.9%

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

Review moat

Bad49,801.42

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, vitamin d3 3000 iu is a $80K/yr Amazon United States market (59K searches/yr). The top 5 brands hold 85% of demand. Verdict: Skip it — 40/100.

Data updated Aug 5, 2026 · scored weekly · How we score niches

vitamin d3 3000 iu market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: $82K–$109K; units × avg price
Conversion rate: 9.9%
Avg BSR: #137
Page quality: 0%
Prime: 100%
Sponsored: 95%
Out of stock: 0.0%
Avg brand age: 107 months
Avg seller age: 162 days

Competition & brand share

The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 falling

Sellers

117

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

67%

Top 20: 100%

Open market

12%

Zahler45%
NatureWise15%
Nature Made15%
NOW Foods6%
MaxX Labs4%
Maxi Health3%
Open — no brand owns it (5 brands, 12%)

Demand & seasonality

Weekly Amazon search volume, last 101 weeks — -17.9% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top vitamin d3 3000 iu search terms

vitamin d 3000 iu25K/yr -13.4%10.3% conv.
vitamin d3 3000 iu21K/yr -23.9%8.2% conv.
vitamin d 30009K/yr -15.7%8.0% conv.
vitamin d3 30006K/yr -17.9%9.1% conv.

All search terms

Top vitamin d3 3000 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.

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

All 19 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Zahler - Advanced Vitamin D3 3000 IU Softgels (120 Count) Kosher Vegetarian Friendly Vitamin D for Immune Support Bone Teeth & Muscle Health - Daily D3 Vitamin Supplement for Adults - Easy Swallow.

Zahler$12.394.8★2,081 rev

Zahler Vitamin D3 3000IU Vitamin D3 Supplement 3 000 IU Certified Kosher (250 Softgels)

Zahler$19.344.8★2,081 rev

Nature Made Vitamin D3 2000 IU (50 mcg) 250 Vitamin D Softgels

Nature Made$12.904.8★24,865 rev

NatureWise Vitamin D3 2000IU Supplement Immune Support 360 Mini Softgels

NatureWise$12.424.7★195,696 rev

NatureWise Vitamin D3 4000 IU Supplement Immune Support 360 Mini Softgels

NatureWise$14.954.7★195,696 rev

Newest

by launch date

Bronson Vitamin D3 2000 IU (50mcg) Non-GMO 360 Tablets

Bronson$9.92907 rev

1y ago

Now Supplements Vitamin D3 2 500 IU Bone & Immune Health* 180 Softgels

NOW Foods$9.1875 rev

1y ago

Sports Research Vitamin D3 4000iu/100mcg with Coconut MCT Oil 360 Count

Sports Research$16.79104 rev

2y ago

NatureWise Vitamin D3 4000 IU Supplement Immune Support 90 Mini Softgels

NatureWise$8.65195,696 rev

2y ago

Bronson Vitamin D3 5000iu (125mcg) Non-GMO Gluten-Free Soy-Free 360 Tablets

Bronson$9.542,941 rev

3y ago

What buyers say about vitamin d3 3000 iu

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

What buyers love

Vitamin24%

“Awesome vitamin”

Quality-Overall15%

“Reliable quality”

Value For Money13%

“Fair price”

Advertised Vs Actual Product8%

“As advertised”

Ease Of Chewing/Swallowing7%

“I appreciate that they are easy to chew and provide a solid dose for immune and bone support”

Ease Of Use4%

“Easy to use”

Efficiency3%

“Effective”

Dosage3%

“The bottle contains a good number of capsules”

Nutritional Content2%

“Killer deal on great supplements”

Immunity Booster1%

“Seems to work just fine with immune support”

What buyers complain about

Vitamin11%

“I was deficient in vitamin d”

Size-Overall7%

“Its a tiny capsule”

Dosage6%

“Too high of a dose for me”

Functionality-Overall4%

“Doesnt work”

Advertised Vs Actual Product3%

“NOT WHAT EXPECTED”

Ingredients-Overall3%

“I hadn't read the ingredienta for some naive reason”

Ease Of Use3%

“Pills are difficult to get out”

Smell3%

“These have a strong FISH odor”

Ease Of Chewing/Swallowing2%

“they are very chewy”

Side Effects2%

“Makes you sick”

Top return reasons

Vitamin24%

Dosage19%

Value For Money8%

Quality-Overall6%

Smell6%

Adhesion/Stickiness6%

Size-Overall6%

Taste-Overall3%

Functionality-Overall3%