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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

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$18.96

avg listing price — sweet spot $15–$100

Conversion

Great8.6%

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

Okay63%

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

Review moat

Bad4,034.45

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-11.4%

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

Brand share

Bad97%

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

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 '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb · busiest ÷ quietest = 2.5×

Top toddler vitamin d search terms

  • mary ruth vitamin d82K/yr
  • toddler vitamin d33K/yr
  • vitamin d toddler20K/yr
  • vitamin d drops for toddlers 1-313K/yr
  • vitamin d for toddlers 1-310K/yr
  • vitamin d mary ruth11K/yr
  • vitamin d for toddlers15K/yr
  • mary ruths vitamin d11K/yr
  • mary ruth d310K/yr
  • vitamin d drops for toddlers8K/yr
All 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 moat Market 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.

What buyers say about toddler vitamin d

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

What buyers love

Vitamin25%

“Best vitamins”

Ease Of Use15%

“Easy peasy”

Quality-Overall12%

“Good product, reliable”

Taste-Overall10%

“The taste is natural”

Flavor3%

“Clean components and wonder flavor”

Value For Money3%

“Good value for money”

Dosage3%

“The dropper makes dosing straightforward”

Vegan/Organic3%

“Love that these are organic”

Ingredients-Overall2%

“I love the clean ingredients”

Efficiency1%

“Works great”

What buyers complain about

Taste-Overall20%

“Horrible After Taste”

Leak-Proof7%

“leaking issue”

Vitamin5%

“not vitamin K for absorption”

Smell4%

“Chemical smell”

Ease Of Use3%

“Tough to get the drops out”

Functionality-Overall3%

“We tried a bunch of different ways but had no success.”

Value For Money3%

“The price is a little on the high side”

Oily/Greasy2%

“the bottle tends to get a bit oily”

Flavor2%

“baby hates the cherry flavor”

Acid Regulator/Stomach Ache Relief2%

“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-Proof23%
Value For Money13%
Functionality-Overall10%
Taste-Overall8%
Flavor6%
Age Suitability6%
Advertised Vs Actual Product6%
Smell5%
Oily/Greasy3%
Vegan/Organic3%

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.