---
title: "Vitamin D3 3000 Iu — $80K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-d3-3000-iu"
last_updated: "2026-08-10T06:27:18.853Z"
locale: en
meta:
description: "Niche score 40/100 · $80K/yr market · 59K searches/yr · $13.62 avg price. Doesn't clear our bar today. Data updated Aug 2026."
"og:description": "Niche score 40/100 · $80K/yr market · 59K searches/yr · $13.62 avg price. Doesn't clear our bar today. Data updated Aug 2026."
"og:title": "Vitamin D3 3000 Iu — $80K/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin d3 3000 iu**
**Skip it**
A deep review moat (49,801 avg reviews) — this niche doesn't clear our bar today.
Market size 20Growth 16Conversion 87Competition 30Returns 100Price range 61Avg price 63Brand share 34Review moat 0Quality gap 17
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****9.9%**
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**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****67%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Bad****$80K**
$80K/yr · 59K searches
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-17.9%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****49,801.42**
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 ~~](https://flapen.com/research/methodology)
## **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.
2K1KSpike '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-d3-3000-iu/trend)
## **Top vitamin d3 3000 iu search terms**
- **vitamin d 3000 iu**25K/yr-13.4%10.3% conv. - **vitamin d3 3000 iu**21K/yr-23.9%8.2% conv. - **vitamin d 3000**9K/yr-15.7%8.0% conv. - **vitamin d3 3000**6K/yr-17.9%9.1% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-d3-3000-iu/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.
0%10%$8K20%$16K30%$24K40%$32K101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**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**$12.39**4.8★2,081 rev](https://www.amazon.com/dp/B00E3VCG4K) [2**Zahler Vitamin D3 3000IU Vitamin D3 Supplement 3 000 IU Certified Kosher (250 Softgels)**Zahler**$19.34**4.8★2,081 rev](https://www.amazon.com/dp/B00D9RP9DY) [3**Nature Made Vitamin D3 2000 IU (50 mcg) 250 Vitamin D Softgels**Nature Made**$12.90**4.8★24,865 rev](https://www.amazon.com/dp/B004GJYTF8) [4**NatureWise Vitamin D3 2000IU Supplement Immune Support 360 Mini Softgels**NatureWise**$12.42**4.7★195,696 rev](https://www.amazon.com/dp/B01J2ZA8HI) [5**NatureWise Vitamin D3 4000 IU Supplement Immune Support 360 Mini Softgels**NatureWise**$14.95**4.7★195,696 rev](https://www.amazon.com/dp/B07QBXPT2F)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Bronson Vitamin D3 2000 IU (50mcg) Non-GMO 360 Tablets**Bronson**$9.92**907 rev1y ago](https://www.amazon.com/dp/B087M6K5NM) [**Now Supplements Vitamin D3 2 500 IU Bone & Immune Health* 180 Softgels**NOW Foods**$9.18**75 rev1y ago](https://www.amazon.com/dp/B0F76MCJ44) [**Sports Research Vitamin D3 4000iu/100mcg with Coconut MCT Oil 360 Count**Sports Research**$16.79**104 rev2y ago](https://www.amazon.com/dp/B0CTVP683Q) [**NatureWise Vitamin D3 4000 IU Supplement Immune Support 90 Mini Softgels**NatureWise**$8.65**195,696 rev2y ago](https://www.amazon.com/dp/B0CKFQVNDL) [**Bronson Vitamin D3 5000iu (125mcg) Non-GMO Gluten-Free Soy-Free 360 Tablets**Bronson**$9.54**2,941 rev3y ago](https://www.amazon.com/dp/B0BXLTXFTS)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Sports Research Vitamin D3 4000iu/100mcg with Coconut MCT Oil 360 Count**Sports Research**$16.79**4.4★**▲ 122%**](https://www.amazon.com/dp/B0CTVP683Q) [**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**$12.39**4.8★**▲ 45%**](https://www.amazon.com/dp/B00E3VCG4K) [**Bronson Vitamin D3 5000iu (125mcg) Non-GMO Gluten-Free Soy-Free 360 Tablets**Bronson**$9.54**4.8★**▲ 41%**](https://www.amazon.com/dp/B0BXLTXFTS) [**NatureWise Vitamin D3 4000 IU Supplement Immune Support 90 Mini Softgels**NatureWise**$8.65**4.7★**▲ 20%**](https://www.amazon.com/dp/B0CKFQVNDL) [**NOW Foods Supplements Vitamin D-3 2 000 IU High Potency Structural Support* 240 Softgels**NOW Foods**$8.56**4.8★**▲ 12%**](https://www.amazon.com/dp/B001UZPY1O)
**~~View all trending →~~**
## **What buyers say about vitamin d3 3000 iu**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Vitamin**24%
*“Awesome vitamin”*
**Quality-Overall**15%
*“Reliable quality”*
**Value For Money**13%
*“Fair price”*
**Advertised Vs Actual Product**8%
*“As advertised”*
**Ease Of Chewing/Swallowing**7%
*“I appreciate that they are easy to chew and provide a solid dose for immune and bone support”*
**Ease Of Use**4%
*“Easy to use”*
**Efficiency**3%
*“Effective”*
**Dosage**3%
*“The bottle contains a good number of capsules”*
**Nutritional Content**2%
*“Killer deal on great supplements”*
**Immunity Booster**1%
*“Seems to work just fine with immune support”*
### **What buyers complain about **
**Vitamin**11%
*“I was deficient in vitamin d”*
**Size-Overall**7%
*“Its a tiny capsule”*
**Dosage**6%
*“Too high of a dose for me”*
**Functionality-Overall**4%
*“Doesnt work”*
**Advertised Vs Actual Product**3%
*“NOT WHAT EXPECTED”*
**Ingredients-Overall**3%
*“I hadn't read the ingredienta for some naive reason”*
**Ease Of Use**3%
*“Pills are difficult to get out”*
**Smell**3%
*“These have a strong FISH odor”*
**Ease Of Chewing/Swallowing**2%
*“they are very chewy”*
**Side Effects**2%
*“Makes you sick”*
### **Top return reasons **
**Vitamin**24%
**Dosage**19%
**Value For Money**8%
**Quality-Overall**6%
**Smell**6%
**Adhesion/Stickiness**6%
**Size-Overall**6%
**Taste-Overall**3%
**Functionality-Overall**3%
**Ingredients-Overall**3%
## **Common questions**
- **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.
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