---
title: "Vitamin Deficiency Test — $48K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-deficiency-test"
last_updated: "2026-08-09T22:57:18.487Z"
locale: en
meta:
description: "Niche score 37/100 · $48K/yr market · 84K searches/yr · $68.65 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 37/100 · $48K/yr market · 84K searches/yr · $68.65 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Vitamin Deficiency Test — $48K/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin deficiency test**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 12Growth 10Conversion 10Competition 3Returns 98Price range 81Avg price 86Brand share 0Review moat 88Quality gap 96
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Quality gap**
**Incredible****3.9★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****236**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****$68.65**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$19.64–$117.71**
cheapest 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**
**Bad****0.8%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Bad****97%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
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 ~~](https://flapen.com/research/methodology)
## **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.
3K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-deficiency-test/trend)
## **Top vitamin deficiency test search terms**
- **vitamin deficiency test home kit**27K/yr-21.0%0.5% conv. - **vitamin test kit at home**9K/yr-13.5%0.4% conv. - **mineral deficiency test home kit**5K/yr+11.7%0.3% conv. - **vitamin deficiency test**9K/yr-58.4%0.2% conv. - **vitamin test kit**4K/yr-15.8%0.5% conv. - **vitamin test**4K/yr-34.9%0.1% conv. - **vitamin deficiency test kit**4K/yr-56.4%0.5% conv. - **vitamin and mineral testing kit**1K/yr+76.1%1.4% conv. - **at home vitamin deficiency test**11K/yr-57.9%0.6% conv. - **vitamin and mineral deficiency test**4K/yr-70.4%1.5% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-deficiency-test/search-terms)
## **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.
0%15%$7K30%$14K45%$21K60%$29K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 6 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**5Strands Nutrition Test 112 Vitamins Minerals Amino Acids Tested Identify Nutrient Absorption Issues Holistic At Home Imbalance Testing Results in 4 Days**5Strands**$58.98**4.0★642 rev](https://www.amazon.com/dp/B07HL1FP5M) [2**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**$85.18**4.0★418 rev](https://www.amazon.com/dp/B0BHHY1F8D) [3**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**$117.71**4.4★60 rev](https://www.amazon.com/dp/B0BZJHWJ84) [4**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**$71.80**4.0★129 rev](https://www.amazon.com/dp/B09WLNTVG5) [5**Verisana Vitamin B12 Test Determine Your Vitamin B12 Value Easily & Conveniently from Home Analysis by CLIA-Certified Lab**Verisana**$58.58**4.3★109 rev](https://www.amazon.com/dp/B09ZPQF5G6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vitamin d Test kit at Home he Result is Highly Accurate Easy to Read and use**krojpen**$19.64**58 rev1y ago](https://www.amazon.com/dp/B0DP27JMKJ) [**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**$117.71**60 rev3y ago](https://www.amazon.com/dp/B0BZJHWJ84) [**Verisana Vitamin B12 Test Determine Your Vitamin B12 Value Easily & Conveniently from Home Analysis by CLIA-Certified Lab**Verisana**$58.58**109 rev4y ago](https://www.amazon.com/dp/B09ZPQF5G6) [**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**$71.80**129 rev4y ago](https://www.amazon.com/dp/B09WLNTVG5) [**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**$85.18**418 rev4y ago](https://www.amazon.com/dp/B0BHHY1F8D)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$85.18**4.0★**▲ 35%**](https://www.amazon.com/dp/B0BHHY1F8D) [**Verisana Vitamin B12 Test Determine Your Vitamin B12 Value Easily & Conveniently from Home Analysis by CLIA-Certified Lab**Verisana**$58.58**4.3★**— 9%**](https://www.amazon.com/dp/B09ZPQF5G6) [**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**$71.80**4.0★**— 8%**](https://www.amazon.com/dp/B09WLNTVG5) [**Vitamin d Test kit at Home he Result is Highly Accurate Easy to Read and use**krojpen**$19.64**2.6★**— 0%**](https://www.amazon.com/dp/B0DP27JMKJ) [**5Strands Nutrition Test 112 Vitamins Minerals Amino Acids Tested Identify Nutrient Absorption Issues Holistic At Home Imbalance Testing Results in 4 Days**5Strands**$58.98**4.0★**— 10%**](https://www.amazon.com/dp/B07HL1FP5M)
**~~View all trending →~~**
## **What buyers say about vitamin deficiency test**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**36%
*“Easy to Use”*
**Quality-Overall**18%
*“Great Product and simple to use”*
**Instructions/User Manual/Troubleshooting**15%
*“The instructions were clear”*
**Accuracy-Overall**4%
*“accuracy for me was great”*
**Health Monitoring**4%
*“The test was convenient”*
**Allergies**3%
*“Great allergic test kit”*
**Value For Money**3%
*“Well worth it”*
**Nutritional Content**3%
*“Really good product to test the sensitivity of food”*
**Vitamin**2%
*“Great Vitamin B12 Test Kit - highly recommend”*
**Advertised Vs Actual Product**2%
*“Works just as well as advertised”*
### **What buyers complain about **
**Accuracy-Overall**11%
*“not accurate or even close”*
**Measurement/Reading Accuracy**10%
*“This is NOT a standard hair analysis”*
**Functionality-Overall**9%
*“havent recd testing results”*
**Advertised Vs Actual Product**6%
*“it doesn't provide this information”*
**Vitamin**6%
*“This test confirmed my vitamin deficiencies I knew I had”*
**Ethical Trade/Fair Trade**6%
*“I believe its a scam”*
**Iron**5%
*“I ended up in the ICU needing a transfusion because I had such terrible Iron anemia”*
**Quality-Overall**5%
*“Overall, I walked away disappointed and more confused than informed”*
**Nutritional Content**4%
*“I have no way of knowing if I am too high or too low in those nutrients”*
**Visibility**4%
*“Impossible to read without a magnifying glass”*
### **Top return reasons **
**Functionality-Overall**33%
**Advertised Vs Actual Product**17%
**Ethical Trade/Fair Trade**17%
**Minerals**8%
**Certifications**8%
**Vitamin**8%
**Accuracy-Overall**4%
**Visibility**4%
## **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.
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