---
title: "Kids Vitamin D3 K2 — $20K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/kids-vitamin-d3-k2"
last_updated: "2026-08-12T14:13:32.854Z"
locale: en
meta:
description: "Amazon product research for kids vitamin d3 k2: $20K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for kids vitamin d3 k2: $20K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Kids Vitamin D3 K2 — $20K/mo Amazon US Product Research"
---
# **Kids Vitamin D3 K2**
**Worth a look**
Shows low returns (0.0%), but soft demand (-10.1% this quarter) keeps it on the watch list.
Market size 45Growth 20Conversion 59Competition 43Returns 100Price range 91Avg price 95Brand share 40Review moat 53Quality gap 27
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$22.96**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$13.32–$44.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****5.1%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****1,388.24**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****$237K**
$237K/yr · 204K searches
**Competition**
**Okay****59%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****81%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-10.1%**
90-day search growth — must beat 0% to launch
## **Is kids vitamin d3 k2 profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, kids vitamin d3 k2 is a $237K/yr Amazon United States market (204K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Jan. Verdict: Worth a look — 51/100.
Data updated Aug 5, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kids vitamin d3 k2 market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **15K–20K**
- avg 500–750/product
- **Revenue / yr**
- **$344K–$459K**
- units × avg price
- **Conversion rate**
- **5.1%**
- **Avg BSR**
- **#146**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **97%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **66 months**
- **Avg seller age**
- **161 days**
## **Competition: brands, sellers & click share**
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▲rising
**Sellers**
**569**
**Top-5 brand share**
**81%**
Top 20: 100%
**Top-5 click share**
**59%**
Top 20: 91%
**Open market**
**16%**
- MARYRUTH'S56% - NutraChamps10% - Zahler7% - Llama Naturals4% - LILICARE4% - Nordic Naturals3% - Open — no brand owns it (10 brands, 16%)
## **kids vitamin d3 k2 demand & seasonality**
Weekly Amazon search volume, last 101 weeks — -10.1% search growth over the last 90 days.
6K4KBlack Friday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/health-household/kids-vitamin-d3-k2/trend)
## **Top kids vitamin d3 k2 search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **mary ruth vitamin d3 k2**29K/yr-9.9%6.1% conv. - **kids vitamin d3 k2**29K/yr-17.6%6.1% conv. - **vitamin d3 k2 kids**21K/yr-5.1%5.3% conv. - **mary ruth d3 k2**20K/yr-13.6%6.7% conv. - **mary ruth calcium**18K/yr-15.3%3.2% conv. - **vitamin d3 k2 for kids**15K/yr-19.7%5.2% conv. - **d3 k2 kids**11K/yr-19.0%5.6% conv. - **kids d3 and k2 vitamin**11K/yr-19.6%6.7% conv. - **mary ruth calcium gummies**7K/yr-5.8%5.4% conv. - **mary ruth calcium supplement**4K/yr+175.1%0.2% conv. [**All search terms **](https://flapen.com/research/us/health-household/kids-vitamin-d3-k2/search-terms)
## **Top kids vitamin d3 k2 products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$12K10%$24K15%$36K20%$47K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**MaryRuths Organic D3 + K2 Spray for Adults & Kids for Bone Health 1 Fl Oz**MARYRUTH'S**$25.01**4.5★3,129 rev](https://www.amazon.com/dp/B07DNK1568) [2**MARYRUTHS Vitamin D3 K2 Calcium Gummies Bone Health 2 Month Supply 60ct**MARYRUTH'S**$26.00**4.2★4,875 rev](https://www.amazon.com/dp/B07GC86WMY) [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**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★412 rev](https://www.amazon.com/dp/B0BNCDLJMV) [5**Zahler Junior D3 & K2 - Bone Building & Immune Support for Kids - Vitamin D3 & Vitamin K2 to Support Bone Density & Calcium Absorption - Non-GMO & Gluten-Free - Peach Apricot 90 Chewable Tablets**Zahler**$15.46**4.8★1,387 rev](https://www.amazon.com/dp/B08QQCQ3S8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SmartyPants Kids Bone Support 4-in-1 Gummies with Calcium Vitamin D3 K2 & Phosphorus for Growing Bones Strawberry Mango 60 Count (30 Day Supply)**SmartyPants**$20.96**48 rev3mo ago](https://www.amazon.com/dp/B0GTW9ZL5V) [**Vitamin D3 K2 Gummies for Kids & Teens + Calcium Magnesium Zinc Phosphorus C Kids Multivitamin D3 & K2 Supplement for Bone Health Calcium Absorption Focus & Immunity Non GMO Sugar Free 2Pack**NEVISS**$32.50**133 rev1y ago](https://www.amazon.com/dp/B0FKGW31TX) [**Vitamin D3 K2 Drops for Kids Liquid Supplement with Calcium Omega 3 Zinc Vitamin D3 K2 for Calcium Absorption Healthy Bones Brain Development & Immune System Non-GMO Vegan Orange Flavor 2 Fl Oz**GZ HAOYUAN**$13.32**95 rev1y ago](https://www.amazon.com/dp/B0FGD12GNX) [**Llama Naturals Kids Vitamin D3 K2 Gummies Vegan Organic Children Toddler Vitamin D Gummies Real Fruit Gummy Vitamins No Added Sugar Cane Raspberry 60 Ct**Llama Naturals**$20.79**75 rev1y ago](https://www.amazon.com/dp/B0FDT46WYY) [**CNCHEF Vitamin D3 K2 Drops for Kids - Liquid Supplement with Magnesium for Calcium Absorption Joint Health Teeth & Heart - Non-GMO Vegan Orange 2 Fl Oz - Kids Ages 4+**CNCHEF**$16.20**118 rev1y ago](https://www.amazon.com/dp/B0F298SJR5)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**SmartyPants Kids Bone Support 4-in-1 Gummies with Calcium Vitamin D3 K2 & Phosphorus for Growing Bones Strawberry Mango 60 Count (30 Day Supply)**SmartyPants**$20.96**4.6★**▲ 387%**](https://www.amazon.com/dp/B0GTW9ZL5V) [**Renzos Hercules Healthy Growth for Kids Dissolvable Tabs 60-Count**Renzo's**$19.08**4.6★**▲ 166%**](https://www.amazon.com/dp/B0BTQ2GD36) [**Llama Naturals Kids Vitamin D3 K2 Gummies Vegan Organic Children Toddler Vitamin D Gummies Real Fruit Gummy Vitamins No Added Sugar Cane Raspberry 60 Ct**Llama Naturals**$20.79**4.7★**▲ 118%**](https://www.amazon.com/dp/B0FDT46WYY) [**Llama Naturals Vitamin D3 Vegan Organic Immune Support Supplement Vitamin D Gummies for Adults and Kids Real Fruit Gummy Vitamins Promotes Bone Health No Added Sugar Cane Raspberry 60 Ct**Llama Naturals**$21.51**4.6★**▲ 89%**](https://www.amazon.com/dp/B08691JSN7) [**Nordic Naturals Kids Vitamin D3 Gummies 400 IU Watermelon - 60 Count**Nordic Naturals**$18.55**4.7★**▲ 63%**](https://www.amazon.com/dp/B088VG5GWS)
**~~View all trending →~~**
## **What reviews say buyers love and hate about kids vitamin d3 k2**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**20%
*“Great Taste”*
**Vitamin**19%
*“Good Vitamin”*
**Quality-Overall**9%
*“High Quality & Easy to Take”*
**Flavor**7%
*“First off, the grape flavor is great”*
**Ease Of Use**6%
*“Easy to Use”*
**Nutritional Content**3%
*“its nice to have a reliable way to help fill in nutritional gaps”*
**Ingredients-Overall**3%
*“have clean ingredients”*
**Ease Of Chewing/Swallowing**2%
*“Very yummy chew that toddlers will love”*
**Value For Money**2%
*“Worth it”*
**Sweetness**2%
*“My toddler and I both take these and they are also delicious without all the extra added sugar”*
### **What buyers complain about **
**Taste-Overall**18%
*“It has a strange metallic Berry taste”*
**Vitamin**6%
*“not vitamin K for absorption”*
**Flavor**6%
*“No flavor”*
**Value For Money**6%
*“Expensive”*
**Allergies**3%
*“my daughter had allergic reaction from it”*
**Ingredients-Overall**2%
*“Need ingredient list for these”*
**Artificial Sweeteners**2%
*“Nothing coated in sugar is good for you”*
**Smell**2%
*“Chemical smell”*
**Sleep Quality**2%
*“he has the hardest time sleeping through the night”*
**Functionality-Overall**2%
*“Not working”*
### **Top return reasons **
**Flavor**20%
**Value For Money**20%
**Taste-Overall**10%
**Size-Overall**5%
**Dosage**5%
**Quality-Overall**5%
**Product Condition**5%
**Sweetness**5%
**Leak-Proof**5%
**Ease Of Chewing/Swallowing**5%
## **Common kids vitamin d3 k2 questions**
- **Is kids vitamin d3 k2 profitable to sell on Amazon United States?**
- The niche generates $237K/yr across 29 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -10.1%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the kids vitamin d3 k2 niche?**
- 16 brands and 569 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 81% of demand.
- **What do buyers complain about in kids vitamin d3 k2?**
- Top complaints mined from reviews: Taste-Overall, Vitamin, Flavor. The return rate is 0.0%.
- **When does demand for kids vitamin d3 k2 peak?**
- Demand peaks in Jan; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the kids vitamin d3 k2 niche?**
- Listings span $13.32–$44.12; the average listing price is $22.96 (sweet spot $15–$100). The average incumbent carries 1,388 reviews — the moat a new listing must climb.
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