vitamin d and zinc
Skip itStrong incumbent ratings (4.7★) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Great$18.12avg listing price — sweet spot $15–$100
Price range
Great$9.99–$33.99cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good6.0%search→purchase rate — share of searches ending in a sale
Brand share
Good68%top-5 brand share — brands hold most of the demand
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Growth
Bad-2.7%90-day search growth — must beat 0% to launch
Review moat
Bad6,322.1avg incumbent reviews — the moat a new listing must climb
Market size
Bad$86K$86K/yr · 79K searches
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, vitamin d and zinc is a $86K/yr Amazon United States market (79K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Mar. Verdict: Skip it — 46/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
vitamin d and zinc market data
- Units sold / yr
- 5K–6K
- avg 100–250/product
- Revenue / yr
- $91K–$109K
- units × avg price
- Conversion rate
- 6.0%
- Avg BSR
- #175
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 76%
- Out of stock
- 0.0%
- Avg brand age
- 69 months
- Avg seller age
- 148 days
Competition & brand share
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.Brands
17 falling
Sellers
124
Top-5 brand share
68%
Top 20: 100%
Top-5 click share
64%
Top 20: 99%
Open market
27%
- NOW Foods20%
- X Gold Health17%
- Nature Made14%
- Carlyle11%
- NutriBiotic6%
- Amen5%
Demand & seasonality
Weekly Amazon search volume, last 99 weeks — -2.7% search growth over the last 90 days.Peak months: Mar · busiest ÷ quietest = 1.7×
Top vitamin d and zinc search terms
- vitamin d and zinc20K/yr
- zinc and vitamin d13K/yr
- vitamin d3 and zinc8K/yr
- zinc vitamin d11K/yr
- vitamin d zinc7K/yr
- zinc d34K/yr
- vitamin d with zinc4K/yr
- d3 zinc3K/yr
- vitamin d3 zinc3K/yr
- zinc vitamin c vit d magnesium combo3K/yr
Top vitamin d and zinc 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 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Now Supplements C-1000 Zinc & D-3 Seasonal Immune Support* 100 Veg Capsules
NOW Foods$10.794.7★605 rev
Vitamin D K2 K1 Zinc Quercetin Elderberry Turmeric Ginger & Echinacea Whole Food Supplement 8 in 1- D3 5000 IU Plant-Based from Lichen Vitamin K (K2 MK7 MK4 K1) D3 K2 Vitamins -120 Capsules
X Gold Health$29.014.8★1,216 rev
Carlyle Magnesium Zinc and Vitamin D3 | 90 Capsules
Carlyle$10.014.7★438 rev
Nature Made Super C Tablets with Vitamin D3 and Zinc 60 Tablets
Nature Made$12.504.8★8,734 rev
Amen Vitamin D K2 & Zinc Cholecalciferol D3 5000 IU Organic Whole Food Blend with Apple Blueberry Cranberry Elderberry Powder Fruits Vegan Supplement D3 K2 Vitamins Non-GMO - 60 Capsules
Amen$25.894.7★617 rev
Newest
by launch date
Vitamin D3 K2 - D3 10000iu & K2 120mcg - Highly Bioavailable - 120Softgels
NUTRAHARMONY$11.58363 rev
Sandhus Vitamin D3 K2 Magnesium 5000 IU 120mcg K2 Capsules 120 Count (Pack of 1) | with VIT B6 Zinc & Quercetin | D3K2 Supports Superior Absorption Energy Immune Muscle Health for Men & Women
Sandhu's$29.072,301 rev
Natures Bounty Calcium + D3 + Zinc Gummies Supports Strong Bones & Teeth Plus a Healthy Immune System 500mg Orange and Cherry Flavored 70 Gummies
Nature's Bounty$11.18540 rev
American Standard Supplements Zinc 100mg Vitamin C 1000mg and Vitamin D3 5000 IU (125mcg) Per Serving - Gluten Free Non-GMO 60 Capsules 30 Servings
American Standard Supplements$9.997,967 rev
Carlyle Magnesium Zinc and Vitamin D3 | 90 Capsules
Carlyle$10.01438 rev
Trending
90-day click momentumVitamin D3 K2 - D3 10000iu & K2 120mcg - Highly Bioavailable - 120Softgels
NUTRAHARMONY$11.584.7★
One A Day Multivitamin for Men - Daily Mens Multivitamins with Vitamin D Zinc Folic Acid and B Vitamins Physical Energy Support 200 Count
ONE A DAY$15.294.7★
Garden of Life Dr. Formulated Vitamin D3 & Zinc Quercetin Once Daily Supplement Immune Support & Breast Health Non-GMO Gluten-Free 30 Small Tabs
Garden of Life$15.324.7★
Magnesium Zinc & Vitamin D3 Supplement - Most Bioavailable Forms; Magnesium Glycinate Malate Citrate - Bone Muscle & Heart Health Immune Support - 120 Vegan Capsules
NutraChamps$21.034.6★
Nature Made Calcium Magnesium Zinc with Vitamin D3 Dietary Calcium Supplement for Bone Support 300 Tablets
Nature Made$11.134.8★
What buyers say about vitamin d and zinc
What buyers praise and complain about, mined from review topics.What buyers love
“Great vitamin”
“Excellent product”
“Great Value”
“Accurate description”
“Easy to swallow”
“no weird taste”
“Seems to boost my immune system for sure”
“Easy to use”
“Helps me relax and sleep better”
“Great energy”
What buyers complain about
“These vitamins did not work for me”
“stomach pains”
“Bottle bigger than I thought”
“Content of each is very low per dosage compared to other brands at the same cost”
“Side effects”
“They are tasteless”
“hard to chew”
“Don't work”
“The combination of these3 suppliment according to other cardiologist could be chatastrophicwith magnesium relaxant,0ppose with d3,a stimulant”
“My diet sometimes doesn't always include everything I would need”
Top return reasons
Common questions
- Is vitamin d and zinc profitable to sell on Amazon United States?
- The niche generates $86K/yr across 21 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -2.7%. Flapen's verdict: Skip it (46/100).
- How competitive is the vitamin d and zinc niche?
- 17 brands and 124 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 68% of demand.
- What do buyers complain about in vitamin d and zinc?
- Top complaints mined from reviews: Vitamin, Acid Regulator/Stomach Ache Relief, Size-Overall. The return rate is 0.0%.
- When does demand for vitamin d and zinc peak?
- Demand peaks in Mar; the busiest month runs 1.7× the quietest.
- What does it cost to enter the vitamin d and zinc niche?
- Listings span $9.99–$33.99; the average listing price is $18.12 (sweet spot $15–$100). The average incumbent carries 6,322 reviews — the moat a new listing must climb.