vitamin deficiency test
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Quality gap
Incredible3.9★avg incumbent rating — lower means beatable quality
Review moat
Great236avg incumbent reviews — the moat a new listing must climb
Avg price
Great$68.65avg listing price — sweet spot $15–$100
Price range
Great$19.64–$117.71cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad$48K$48K/yr · 84K searches
Growth
Bad-29.6%90-day search growth — must beat 0% to launch
Conversion
Bad0.8%search→purchase rate — share of searches ending in a sale
Competition
Bad97%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, vitamin deficiency test is a $48K/yr Amazon United States market (84K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan. Verdict: Skip it — 37/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
vitamin deficiency test market data
- Units sold / yr
- 500–750
- avg 0–100/product
- Revenue / yr
- $34K–$51K
- units × avg price
- Conversion rate
- 0.8%
- Avg BSR
- #674
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 83%
- Out of stock
- 0.0%
- Avg brand age
- 44 months
- Avg seller age
- 160 days
Competition & brand share
The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 flat
Sellers
4
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
97%
Top 20: 100%
Open market
0%
- 5Strands54%
- Advanced Food Intolerance Labs31%
- Verisana11%
- krojpen3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -29.6% search growth over the last 90 days.Peak months: Jan · busiest ÷ quietest = 2.0×
Top vitamin deficiency test search terms
- vitamin deficiency test home kit27K/yr
- vitamin test kit at home9K/yr
- mineral deficiency test home kit5K/yr
- vitamin deficiency test9K/yr
- vitamin test kit4K/yr
- vitamin test4K/yr
- vitamin deficiency test kit4K/yr
- vitamin and mineral testing kit1K/yr
- at home vitamin deficiency test11K/yr
- vitamin and mineral deficiency test4K/yr
Top vitamin deficiency test 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 6 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
5Strands Nutrition Test 112 Vitamins Minerals Amino Acids Tested Identify Nutrient Absorption Issues Holistic At Home Imbalance Testing Results in 4 Days
5Strands$58.984.0★642 rev
AFIL Food Sensitivity Test kit - 1000+ Foods Drinks Vitamins & Gut Health | At-Home Wellness Food Intolerance Test Kits for Adults & Kids - Non-Invasive Wellness Indicator | 1000+ Items Premium
Advanced Food Intolerance Labs$85.184.0★418 rev
Verisana Micronutrient Test & HbA1c + Cholesterol Determine Your Vitamin B9 & B12 Vitamin D Levels + HbA1c & Cholesterol Easily & Conveniently from Home Analysis by CLIA-Certified Lab
Verisana$117.714.4★60 rev
AFIL Upgraded 750+ Foods Drinks Vitamins At-Home Wellness Test Kit Trusted Hair Analysis for Adults & Kids At-Home Health Non-Invasive Gluten Wellness Insights
Advanced Food Intolerance Labs$71.804.0★129 rev
Verisana Vitamin B12 Test Determine Your Vitamin B12 Value Easily & Conveniently from Home Analysis by CLIA-Certified Lab
Verisana$58.584.3★109 rev
Newest
by launch date
Vitamin d Test kit at Home he Result is Highly Accurate Easy to Read and use
krojpen$19.6458 rev
Verisana Micronutrient Test & HbA1c + Cholesterol Determine Your Vitamin B9 & B12 Vitamin D Levels + HbA1c & Cholesterol Easily & Conveniently from Home Analysis by CLIA-Certified Lab
Verisana$117.7160 rev
Verisana Vitamin B12 Test Determine Your Vitamin B12 Value Easily & Conveniently from Home Analysis by CLIA-Certified Lab
Verisana$58.58109 rev
AFIL Upgraded 750+ Foods Drinks Vitamins At-Home Wellness Test Kit Trusted Hair Analysis for Adults & Kids At-Home Health Non-Invasive Gluten Wellness Insights
Advanced Food Intolerance Labs$71.80129 rev
AFIL Food Sensitivity Test kit - 1000+ Foods Drinks Vitamins & Gut Health | At-Home Wellness Food Intolerance Test Kits for Adults & Kids - Non-Invasive Wellness Indicator | 1000+ Items Premium
Advanced Food Intolerance Labs$85.18418 rev
Trending
90-day click momentumAFIL Food Sensitivity Test kit - 1000+ Foods Drinks Vitamins & Gut Health | At-Home Wellness Food Intolerance Test Kits for Adults & Kids - Non-Invasive Wellness Indicator | 1000+ Items Premium
Advanced Food Intolerance Labs$85.184.0★
Verisana Vitamin B12 Test Determine Your Vitamin B12 Value Easily & Conveniently from Home Analysis by CLIA-Certified Lab
Verisana$58.584.3★
AFIL Upgraded 750+ Foods Drinks Vitamins At-Home Wellness Test Kit Trusted Hair Analysis for Adults & Kids At-Home Health Non-Invasive Gluten Wellness Insights
Advanced Food Intolerance Labs$71.804.0★
Vitamin d Test kit at Home he Result is Highly Accurate Easy to Read and use
krojpen$19.642.6★
5Strands Nutrition Test 112 Vitamins Minerals Amino Acids Tested Identify Nutrient Absorption Issues Holistic At Home Imbalance Testing Results in 4 Days
5Strands$58.984.0★
What buyers say about vitamin deficiency test
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to Use”
“Great Product and simple to use”
“The instructions were clear”
“accuracy for me was great”
“The test was convenient”
“Great allergic test kit”
“Well worth it”
“Really good product to test the sensitivity of food”
“Great Vitamin B12 Test Kit - highly recommend”
“Works just as well as advertised”
What buyers complain about
“not accurate or even close”
“This is NOT a standard hair analysis”
“havent recd testing results”
“it doesn't provide this information”
“This test confirmed my vitamin deficiencies I knew I had”
“I believe its a scam”
“I ended up in the ICU needing a transfusion because I had such terrible Iron anemia”
“Overall, I walked away disappointed and more confused than informed”
“I have no way of knowing if I am too high or too low in those nutrients”
“Impossible to read without a magnifying glass”
Top return reasons
Common questions
- Is vitamin deficiency test profitable to sell on Amazon United States?
- The niche generates $48K/yr across 6 tracked products. 90-day search growth is -29.6%. Flapen's verdict: Skip it (37/100).
- How competitive is the vitamin deficiency test niche?
- 4 brands and 4 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in vitamin deficiency test?
- Top complaints mined from reviews: Accuracy-Overall, Measurement/Reading Accuracy, Functionality-Overall. The return rate is 0.4%.
- When does demand for vitamin deficiency test peak?
- Demand peaks in Jan; the busiest month runs 2.0× the quietest.
- What does it cost to enter the vitamin deficiency test niche?
- Listings span $19.64–$117.71; the average listing price is $68.65 (sweet spot $15–$100). The average incumbent carries 236 reviews — the moat a new listing must climb.