---
title: "Vitamin D3 50000 Iu — $588K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-d3-50000-iu"
last_updated: "2026-08-10T06:48:25.378Z"
locale: en
meta:
description: "Niche score 46/100 · $588K/yr market · 428K searches/yr · $17.20 avg price. Doesn't clear our bar today. Data updated Aug 2026."
"og:description": "Niche score 46/100 · $588K/yr market · 428K searches/yr · $17.20 avg price. Doesn't clear our bar today. Data updated Aug 2026."
"og:title": "Vitamin D3 50000 Iu — $588K/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin d3 50000 iu**
**Skip it**
A deep review moat (28,995 avg reviews) — this niche doesn't clear our bar today.
Market size 64Growth 26Conversion 79Competition 14Returns 100Price range 77Avg price 81Brand share 25Review moat 11Quality gap 17
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$17.20**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.0%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$8.81–$35.95**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$588K**
$588K/yr · 428K searches
**Growth**
**Okay****+0.7%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****90%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****83%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****28,994.5**
avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, vitamin d3 50000 iu is a $588K/yr Amazon United States market (428K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 46/100.
Data updated Aug 5, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin d3 50000 iu market data**
- **Units sold / yr**
- **40K–50K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **$688K–$860K**
- units × avg price
- **Conversion rate**
- **8.0%**
- **Avg BSR**
- **#119**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **78 months**
- **Avg seller age**
- **149 days**
## **Competition & brand share**
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▼falling
**Sellers**
**84**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**83%**
Top 20: 100%
**Open market**
**7%**
- Vitamatic35% - ForestLeaf28% - NOW Foods19% - Micro Ingredients4% - Nivagen3% - DEAL SUPPLEMENT3% - Open — no brand owns it (3 brands, 7%)
## **Demand & seasonality**
Weekly Amazon search volume, last 101 weeks — +0.7% search growth over the last 90 days.
10K6KSpike '25 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-d3-50000-iu/trend)
## **Top vitamin d3 50000 iu search terms**
- **vitamin d3 50000 iu**59K/yr+12.1%8.8% conv. - **vitamin d 50000 iu**54K/yr+1.0%8.7% conv. - **vitamina d3 de 50000**54K/yr-23.8%2.7% conv. - **vitamin d 50000**41K/yr-4.4%9.2% conv. - **vitamina d 50000 iu**24K/yr+32.1%1.8% conv. - **high dose vitamin d**23K/yr-17.8%6.1% conv. - **vitamin d 500000 once weekly**23K/yr-19.2%10.7% conv. - **vitamin d3 50000**21K/yr-9.3%9.3% conv. - **vitamina d3 100000 ui**9K/yr+144.8%0.7% conv. - **50000 vitamin d3**18K/yr-21.8%7.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-d3-50000-iu/search-terms)
## **Top vitamin d3 50000 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%$59K20%$118K30%$176K40%$235K101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Vitamatic Vitamin D3 50 000 IU Once Weekly 60 Veg Capsules Made in USA**Vitamatic**$9.80**4.8★5,122 rev](https://www.amazon.com/dp/B08CH2GHKG) [2**ForestLeaf Vitamin D3 50 000 IU High Potency Weekly Supplement 120 Ct**ForestLeaf**$19.45**4.8★15,734 rev](https://www.amazon.com/dp/B076JTQR66) [3**NOW Foods Supplements Vitamin D-3 50 000 IU Softgels 50 softgels**NOW Foods**$11.52**4.8★3,429 rev](https://www.amazon.com/dp/B09319WFSB) [4**Micro Ingredients Vitamin D3 50 000 IU + K2 MK-7 200 mcg 240 Softgels | Virgin Coconut Oil | 2-in-1 Support | Easy to Swallow Non-GMO**Micro Ingredients**$35.95**4.6★1,376 rev](https://www.amazon.com/dp/B0C35N273V) [5**Nivagen Vitamin D3 50 000 IU (1250 mcg) | Once Weekly Dose | 100 Capsules (100 Weeks Approx. 2 Years Supply) | Easy to Swallow | Bone Muscle & Immune Support | Non-GMO Gluten Free | Made in USA**Nivagen**$19.20**4.8★5,245 rev](https://www.amazon.com/dp/B00LXNU684)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Now Foods Vitamin D3 Max Potency 50 000 Iu 15 Capsules**NOW Foods**$8.81**76 rev1y ago](https://www.amazon.com/dp/B0FF5CS3XT) [**UpNourish Liposomal Vitamin D3 50000 IU (Vitamina D3 de 50000) with 1000 mcg Vitamin K High Dose Vitamin D3 K2 Vitamin D 50000 IU with K1 K2 MK-4 and MK-7 120 Mini Softgels**UpNourish**$18.93**329 rev1y ago](https://www.amazon.com/dp/B0DV98Q63G) [**DEAL SUPPLEMENT Vitamin D3 50 000 IU + K2 MK7 200mcg Softgels 240 Count | 2-in-1 Complex with Virgin Coconut Oil | Supports Heart Bone Teeth & Immune Health | Easy to Swallow***DEAL SUPPLEMENT**$34.43**839 rev3y ago](https://www.amazon.com/dp/B0C8LR3L5M) [**Micro Ingredients Vitamin D3 50 000 IU + K2 MK-7 200 mcg 240 Softgels | Virgin Coconut Oil | 2-in-1 Support | Easy to Swallow Non-GMO**Micro Ingredients**$35.95**1,376 rev3y ago](https://www.amazon.com/dp/B0C35N273V) [**Vitamatic Vitamin D3 50 000 IU 60 Natural Orange Flavor Gummies**Vitamatic**$9.68**924 rev3y ago](https://www.amazon.com/dp/B0BRMS8ZB1)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**NOW Foods Supplements Vitamin D-3 5 000 IU High Potency Structural Support* 240 Softgels**NOW Foods**$11.61**4.8★**▲ 47%**](https://www.amazon.com/dp/B0032BH76O) [**Vitamatic Vitamin D3 50 000 IU 60 Natural Orange Flavor Gummies**Vitamatic**$9.68**4.6★**▲ 41%**](https://www.amazon.com/dp/B0BRMS8ZB1) [**ForestLeaf Vitamin D3 50 000 IU High Potency Weekly Supplement 120 Ct**ForestLeaf**$19.45**4.8★**▲ 15%**](https://www.amazon.com/dp/B076JTQR66) [**Now Foods Vitamin D3 Max Potency 50 000 Iu 15 Capsules**NOW Foods**$8.81**4.7★**▲ 13%**](https://www.amazon.com/dp/B0FF5CS3XT) [**Vitamatic Vitamin D3 50 000 IU Once Weekly 60 Veg Capsules Made in USA**Vitamatic**$9.80**4.8★**— 10%**](https://www.amazon.com/dp/B08CH2GHKG)
**~~View all trending →~~**
## **What buyers say about vitamin d3 50000 iu**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Vitamin**26%
*“Awesome vitamin”*
**Quality-Overall**19%
*“the quality has been consistent with every purchase”*
**Value For Money**11%
*“Very affordable”*
**Ease Of Chewing/Swallowing**7%
*“Ease swallow”*
**Efficiency**4%
*“Effective”*
**Dosage**4%
*“Good weekly dose”*
**Advertised Vs Actual Product**3%
*“meets the need”*
**Ease Of Use**3%
*“Easy to open and use”*
**Taste-Overall**2%
*“Pleasant taste”*
**Energy Level**2%
*“my energy levels have improved”*
### **What buyers complain about **
**Vitamin**17%
*“I don't know how effective the vitamin is yet'”*
**Dosage**11%
*“Too high a dosage”*
**Size-Overall**9%
*“These are small”*
**Functionality-Overall**6%
*“Did not work”*
**Taste-Overall**4%
*“there is no taste with the capsules”*
**Value For Money**3%
*“Too pricey”*
**Quality-Overall**2%
*“Poor quality control”*
**Allergies**2%
*“I started getting bad rashes on my face aftwr atarting my second bottle”*
**Smell**1%
*“Smells like coconut oil if someone is not ok with it”*
**Acid Regulator/Stomach Ache Relief**1%
*“So, I took one of these small pills and within 15 minutes I felt extremely light headed and also had stomach pain”*
### **Top return reasons **
**Vitamin**16%
**Dosage**16%
**Value For Money**16%
**Quality-Overall**16%
**Functionality-Overall**11%
**Adhesion/Stickiness**11%
**Strength**5%
**Ingredients-Overall**5%
**Calcium**5%
## **Common questions**
- **Is vitamin d3 50000 iu profitable to sell on Amazon United States?**
- The niche generates $588K/yr across 12 tracked products. 90-day search growth is +0.7%. Flapen's verdict: Skip it (46/100).
- **How competitive is the vitamin d3 50000 iu niche?**
- 9 brands and 84 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in vitamin d3 50000 iu?**
- Top complaints mined from reviews: Vitamin, Dosage, Size-Overall. The return rate is 0.0%.
- **When does demand for vitamin d3 50000 iu peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the vitamin d3 50000 iu niche?**
- Listings span $8.81–$35.95; the average listing price is $17.20 (sweet spot $15–$100). The average incumbent carries 28,995 reviews — the moat a new listing must climb.
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