---
title: "Toddler Vitamin D — $425K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/toddler-vitamin-d"
last_updated: "2026-08-10T17:48:18.328Z"
locale: en
meta:
description: "Niche score 47/100 · $425K/yr market · 261K searches/yr · $18.96 avg price. Doesn't clear our bar today. Data updated Aug 2026."
"og:description": "Niche score 47/100 · $425K/yr market · 261K searches/yr · $18.96 avg price. Doesn't clear our bar today. Data updated Aug 2026."
"og:title": "Toddler Vitamin D — $425K/yr Amazon US Niche (2026) - Flapen"
---
# **toddler vitamin d**
**Skip it**
Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Market size 57Growth 19Conversion 81Competition 36Returns 100Price range 67Avg price 85Brand share 7Review moat 25Quality gap 23
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$18.96**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.6%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$8.91–$27.20**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$425K**
$425K/yr · 261K searches
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Bad****4,034.45**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-11.4%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, toddler vitamin d is a $425K/yr Amazon United States market (261K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 47/100.
Data updated Aug 5, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **toddler vitamin d market data**
- **Units sold / yr**
- **30K–40K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **$569K–$758K**
- units × avg price
- **Conversion rate**
- **8.6%**
- **Avg BSR**
- **#149**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **81 months**
- **Avg seller age**
- **158 days**
## **Competition & brand share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**7 **▼falling
**Sellers**
**574**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 100%
**Open market**
**1%**
- MARYRUTH'S84% - Ddrops5% - Mommy's Bliss3% - Zarbee's3% - NutraChamps2% - The Feel Great Vitamin Company2% - Open — no brand owns it (1 brand, 1%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -11.4% search growth over the last 90 days.
7K5KSpike '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb · busiest ÷ quietest = 2.5×
[**Open Trend **](https://flapen.com/research/us/health-household/toddler-vitamin-d/trend)
## **Top toddler vitamin d search terms**
- **mary ruth vitamin d**82K/yr-16.3%11.0% conv. - **toddler vitamin d**33K/yr-23.6%9.8% conv. - **vitamin d toddler**20K/yr+11.3%6.1% conv. - **vitamin d drops for toddlers 1-3**13K/yr+9.0%11.3% conv. - **vitamin d for toddlers 1-3**10K/yr-18.9%6.7% conv. - **vitamin d mary ruth**11K/yr-17.6%11.1% conv. - **vitamin d for toddlers**15K/yr-28.7%5.5% conv. - **mary ruths vitamin d**11K/yr-17.0%11.4% conv. - **mary ruth d3**10K/yr-15.7%9.8% conv. - **vitamin d drops for toddlers**8K/yr+52.8%4.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/toddler-vitamin-d/search-terms)
## **Top toddler vitamin d 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%$43K20%$85K30%$128K40%$170K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**MARYRUTHS USDA Organic Vitamin D3 Drops Vegan Sugar Free 60 Servings**MARYRUTH'S**$18.23**4.7★1,416 rev](https://www.amazon.com/dp/B09ZVLWPP3) [2**MARYRUTHS Megadose Vitamin D3 Drops Vitamin D 4000 IU Vegan 30 Servings**MARYRUTH'S**$22.56**4.6★1,897 rev](https://www.amazon.com/dp/B09PFFZ9BN) [3**MARYRUTHS Vitamin D3 K2 Drops for Toddlers Calcium Absorption Vegan 1oz**MARYRUTH'S**$18.20**4.7★1,798 rev](https://www.amazon.com/dp/B08LR1WHJM) [4**MARYRUTHS Megadose Vitamin D3 Liposomal Vitamin D 4000 IU 45 Servings**MARYRUTH'S**$17.34**4.5★864 rev](https://www.amazon.com/dp/B09HSNYKTG) [5**MARYRUTHS Organic Vitamin D3 Gummies 1000 IU Immune Support 60 Count**MARYRUTH'S**$27.20**4.7★431 rev](https://www.amazon.com/dp/B0BL9ZQGBY)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Feel Great USDA Organic Liquid Vitamin D Drops for Infants & Toddlers (2 oz) w/ K2 for Absorption | Vitamin D for Kids Supports Immune Support & Bone Health | Sugar Free Vegan Non-GMO & Gluten Free**The Feel Great Vitamin Company**$21.67**76 rev1y ago](https://www.amazon.com/dp/B0DVVM3SB5) [**NutraChamps Kids Vitamin D 3 K2 Drops Vitamin D3 & K2 MK-7 Liquid Vitamin D for Kids 1000 IU Healthy Bones Heart & Immune System Sugar Free Supplement for Toddlers 300 Servings**NutraChamps**$19.21**412 rev3y ago](https://www.amazon.com/dp/B0BNCDLJMV) [**MARYRUTHS Organic Vitamin D3 + B12 Gummies for Ages 4+ 60 Servings Vegan**MARYRUTH'S**$21.84**501 rev3y ago](https://www.amazon.com/dp/B0BNNZ7CY8) [**MARYRUTHS Organic Vitamin D3 Gummies 1000 IU Immune Support 60 Count**MARYRUTH'S**$27.20**431 rev3y ago](https://www.amazon.com/dp/B0BL9ZQGBY) [**MaryRuths Organic Toddler Multivitamin Drops Vegan Sugar Free 30 Servings**MARYRUTH'S**$22.18**2,864 rev3y ago](https://www.amazon.com/dp/B0BHL3FJGH)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**MaryRuths Organic Toddler Multivitamin Drops Vegan Sugar Free 30 Servings**MARYRUTH'S**$22.18**4.6★**▲ 129%**](https://www.amazon.com/dp/B0BHL3FJGH) [**MARYRUTHS Vitamin D3 + B12 Gummies for Ages 4+ Bone Health 60 Servings**MARYRUTH'S**$21.91**4.7★**▲ 89%**](https://www.amazon.com/dp/B06XBTH63R) [**Ddrops Baby 400 IU Vitamin D 90 Drops 2.5mL (0.08 Fl. Oz (Pack of 1))**Ddrops**$15.66**4.8★**▲ 52%**](https://www.amazon.com/dp/B003CT36NE) [**Mommys Bliss Organic Baby Vitamin D Drops No Artificial Color 0.11 Fl Oz**Mommy's Bliss**$11.93**4.7★**▲ 21%**](https://www.amazon.com/dp/B01FSY52FK) [**NutraChamps Kids Vitamin D 3 K2 Drops Vitamin D3 & K2 MK-7 Liquid Vitamin D for Kids 1000 IU Healthy Bones Heart & Immune System Sugar Free Supplement for Toddlers 300 Servings**NutraChamps**$19.21**4.7★**▲ 18%**](https://www.amazon.com/dp/B0BNCDLJMV)
**~~View all trending →~~**
## **What buyers say about toddler vitamin d**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Vitamin**25%
*“Best vitamins”*
**Ease Of Use**15%
*“Easy peasy”*
**Quality-Overall**12%
*“Good product, reliable”*
**Taste-Overall**10%
*“The taste is natural”*
**Flavor**3%
*“Clean components and wonder flavor”*
**Value For Money**3%
*“Good value for money”*
**Dosage**3%
*“The dropper makes dosing straightforward”*
**Vegan/Organic**3%
*“Love that these are organic”*
**Ingredients-Overall**2%
*“I love the clean ingredients”*
**Efficiency**1%
*“Works great”*
### **What buyers complain about **
**Taste-Overall**20%
*“Horrible After Taste”*
**Leak-Proof**7%
*“leaking issue”*
**Vitamin**5%
*“not vitamin K for absorption”*
**Smell**4%
*“Chemical smell”*
**Ease Of Use**3%
*“Tough to get the drops out”*
**Functionality-Overall**3%
*“We tried a bunch of different ways but had no success.”*
**Value For Money**3%
*“The price is a little on the high side”*
**Oily/Greasy**2%
*“the bottle tends to get a bit oily”*
**Flavor**2%
*“baby hates the cherry flavor”*
**Acid Regulator/Stomach Ache Relief**2%
*“Hes had an upset stomach where his stool is more loose and more frequent and he just had a puking episode today”*
### **Top return reasons **
**Leak-Proof**23%
**Value For Money**13%
**Functionality-Overall**10%
**Taste-Overall**8%
**Flavor**6%
**Age Suitability**6%
**Advertised Vs Actual Product**6%
**Smell**5%
**Oily/Greasy**3%
**Vegan/Organic**3%
## **Common questions**
- **Is toddler vitamin d profitable to sell on Amazon United States?**
- The niche generates $425K/yr across 20 tracked products. 90-day search growth is -11.4%. Flapen's verdict: Skip it (47/100).
- **How competitive is the toddler vitamin d niche?**
- 7 brands and 574 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in toddler vitamin d?**
- Top complaints mined from reviews: Taste-Overall, Leak-Proof, Vitamin. The return rate is 0.0%.
- **When does demand for toddler vitamin d peak?**
- Demand peaks in Jan–Feb; the busiest month runs 2.5× the quietest.
- **What does it cost to enter the toddler vitamin d niche?**
- Listings span $8.91–$27.20; the average listing price is $18.96 (sweet spot $15–$100). The average incumbent carries 4,034 reviews — the moat a new listing must climb.
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