vitamin d3 k2
Worth a lookShows a $31.2M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size
Incredible$31.2M$31.2M/yr · 12.2M searches
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible12.9%search→purchase rate — share of searches ending in a sale
Avg price
Great$19.89avg listing price — sweet spot $15–$100
Price range
Great$8.71–$40.07cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good62%top-5 brand share — brands hold most of the demand
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Growth
Bad-2.1%90-day search growth — must beat 0% to launch
Review moat
Bad13,095.63avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, vitamin d3 k2 is a $31.2M/yr Amazon United States market (12.2M searches/yr). The top 5 brands hold 62% of demand. Verdict: Worth a look — 65/100.
Data updated Aug 5, 2026 · scored weekly · How we score niches
vitamin d3 k2 market data
- Units sold / yr
- 1.0M–1.0M
- avg 40,000–50,000/product
- Revenue / yr
- $19.9M–$19.9M
- units × avg price
- Conversion rate
- 12.9%
- Avg BSR
- #27
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 91%
- Out of stock
- 0.0%
- Avg brand age
- 53 months
- Avg seller age
- 148 days
Competition & brand share
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.Brands
20 rising
Sellers
678
Top-5 brand share
62%
Top 20: 100%
Top-5 click share
49%
Top 20: 88%
Open market
31%
- Sports Research19%
- Bronson14%
- Micro Ingredients10%
- Nature Made10%
- Pure Encapsulations10%
- Nutricost7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -2.1% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top vitamin d3 k2 search terms
- vitamin d3 k25.6M/yr
- d3 k22.2M/yr
- d3 k2 vitamin 10000 iu814K/yr
- vitamina d3 con k2515K/yr
- k2 d3 vitamin supplement500K/yr
- d3 k2 vitamin 5000 iu373K/yr
- d3 and k2 supplements369K/yr
- sports research d3 plus k2203K/yr
- vitamin d k2246K/yr
- d3k2176K/yr
Top vitamin d3 k2 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Sports Research Vegan Vitamin D3 + K2 w/Coconut Oil 60 Count Plantgels
Sports Research$22.124.8★54,253 rev
Bronson Vitamin K2 D3 (MK7) Supplement 2-in1 D3 & K2 Complex 60 Capsules
Bronson$9.684.7★40,928 rev
Nature Made Vitamin D3 K2 Supplement 30 Softgels
Nature Made$12.534.7★10,717 rev
Pure Encapsulations Vitamin D3 & K2 120 Capsules
Pure Encapsulations$34.104.8★5,090 rev
Nutricost Vitamin D3 + K2 (5000 IU D3 / 100mcg MK7) 120 Softgels GMO-Free
Nutricost$13.714.8★6,027 rev
Newest
by launch date
BienRaz Vitamin D3 K2 5000IU All-Trans MK-7 100mcg 120 Softgels
BienRaíz$18.27268 rev
VEV Corefeel Vitamin D3 K2 10 000 IU Magnesium Supplement 300 Softgels
VEV$21.292,690 rev
Pure Encapsulations Vitamin D3 & K2 60 Capsules
Pure Encapsulations$19.035,090 rev
VITBOOST Vitamin D3 K2 Complex - 5000 IU (125 mcg) D3 & K2 (MK-7) 90 mcg
VITBOOST$9.602,706 rev
Vitalitown Vitamin D3 K2 D3 10000 IU K2 (MK7) 200mcg 90 Softgels
Vitalitown$9.813,409 rev
Trending
90-day click momentum
Micro Ingredients Vitamin D3 K2 MK-7 10 000 IU Per Serving 180 Softgels
Micro Ingredients$23.204.7★
BienRaz Vitamin D3 K2 5000IU All-Trans MK-7 100mcg 120 Softgels
BienRaíz$18.274.8★
VEV Corefeel Vitamin D3 K2 10 000 IU Magnesium Supplement 300 Softgels
VEV$21.294.7★
VITBOOST Vitamin D3 K2 Complex - 5000 IU (125 mcg) D3 & K2 (MK-7) 90 mcg
VITBOOST$9.604.8★
Bronson Vitamin K2 D3 (MK7) Extra Strength D3 & K2 Complex 120 Capsules
Bronson$15.154.7★
What buyers say about vitamin d3 k2
What buyers praise and complain about, mined from review topics.What buyers love
“Great vitamin supplement”
“Excellent Product”
“Very affordable”
“Easier to swallow”
“Arrived as described”
“Easy to use”
“Works well”
“lots of energy”
“great dosage”
“Good Supplement”
What buyers complain about
“Vitamins had a funky smell”
“Dosage is too much”
“Too expensive”
“Strong fish taste”
“Super small”
“Cheap and makes this product bad”
“Bad side effects”
“False advertisement”
“Gross ingredients”
“Not very effective”
Top return reasons
Common questions
- Is vitamin d3 k2 profitable to sell on Amazon United States?
- The niche generates $31.2M/yr across 32 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -2.1%. Flapen's verdict: Worth a look (65/100).
- How competitive is the vitamin d3 k2 niche?
- 20 brands and 678 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 62% of demand.
- What do buyers complain about in vitamin d3 k2?
- Top complaints mined from reviews: Vitamin, Dosage, Value For Money. The return rate is 0.0%.
- When does demand for vitamin d3 k2 peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the vitamin d3 k2 niche?
- Listings span $8.71–$40.07; the average listing price is $19.89 (sweet spot $15–$100). The average incumbent carries 13,096 reviews — the moat a new listing must climb.