---
title: "Magnesium for Kids — £524K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/magnesium-for-kids"
last_updated: "2026-07-31T17:17:12.966Z"
locale: en
meta:
description: "Niche score 48/100 · £524K/yr market · 413K searches/yr · £10.74 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · £524K/yr market · 413K searches/yr · £10.74 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Magnesium for Kids — £524K/yr Amazon UK Niche (2026) - Flapen"
---
# **magnesium for kids**
**Skip it**
Soft demand (-37.4% this quarter) — this niche doesn't clear our bar today.
Market size 61Growth 6Conversion 94Competition 16Returns 100Price range 25Avg price 40Brand share 17Review moat 61Quality gap 84
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.8%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Market size**
**Good****£524K**
£524K/yr · 413K searches
**Review moat**
**Good****1,062.6**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Okay****£10.74**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****£7.14–£17.58**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
**Competition**
**Bad****81%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-37.4%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, magnesium for kids is a £524K/yr Amazon United Kingdom market (413K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 48/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **magnesium for kids market data**
- **Units sold / yr**
- **40K–50K**
- avg 4,000–5,000/product
- **Revenue / yr**
- **£430K–£537K**
- units × avg price
- **Conversion rate**
- **11.8%**
- **Avg BSR**
- **#68**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **171 days**
## **Competition & brand share**
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▼falling
**Sellers**
**27**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**81%**
Top 20: 100%
**Open market**
**3%**
- novomins69% - CHEWY VITES10% - maxmedix5% - 8 Hour Sleepwell5% - Tonic Health5% - Health4All4% - Open — no brand owns it (1 brand, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -37.4% search growth over the last 90 days.
18K13KSpike '24Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/magnesium-for-kids/trend)
## **Top magnesium for kids search terms**
- **novomins**81K/yr-17.5%5.3% conv. - **magnesium for kids**77K/yr-45.7%5.8% conv. - **kids magnesium gummies**66K/yr-37.3%13.7% conv. - **kids magnesium**43K/yr-48.3%6.1% conv. - **magnesium kids**37K/yr-41.0%7.7% conv. - **magnesium gummies kids**36K/yr-38.6%12.0% conv. - **magnesium kids gummies**11K/yr+9.7%9.4% conv. - **magnesium for kids sleep**14K/yr-30.4%4.2% conv. - **novomins gummies**12K/yr-72.4%1.7% conv. - **magnesium gummies for kids**7K/yr-29.2%6.8% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/magnesium-for-kids/search-terms)
## **Top magnesium for kids 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%£79K30%£157K45%£236K60%£314K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Kids Magnesium Gummies - 546 Mg Magnesium Citrate Providing 60 mg of Magnesium - Alternative to Magnesium Glycinate 30 Gummies - 1 Month Supply Magnesium Supplements - Vegan - Gluten Free - Novomins**novomins**£7.99**4.4★3,894 rev](https://www.amazon.co.uk/dp/B09ZZM9YWF) [2**Kids Night-Time Gummies - 30 Gummies - Magnesium L-Theanine Vitamin B Complex - Vegan & Gluten-Free - Suitable for Ages 3+ - Novomins**novomins**£7.76**4.2★1,980 rev](https://www.amazon.co.uk/dp/B0CKY3KF4K) [3**Chewy Vites Kids Magnesium 2 Months Supply 60 Kids Vitamins Gummies 500mg Magnesium Citrate Providing 56mg per Gummy Real Fruit Juice Age 3 + Berries Flavour**CHEWY VITES**£7.75**4.6★318 rev](https://www.amazon.co.uk/dp/B0D9C2PYJ1) [4**Womens Bio-Balance Gummies for Intimate Flora and Gut Health Advanced Multi-Strain Formulation Vegan Supplement with Calcium & Cranberry Extract - Made by Novomins**novomins**£17.58**4.5★927 rev](https://www.amazon.co.uk/dp/B09ZYQ599X) [5**Kids Magnesium Gummies - 90 Vegan Gummies - 3 Months Supply - 1 per Day**maxmedix**£13.46**4.3★147 rev](https://www.amazon.co.uk/dp/B0FBVZ35TP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vinco Magnesium Glycinate Complex Gummies for Adults & Kids - Chelated Bisglycinate with Vitamin B6 C & D3 L-Theanine 5HTP - Time Release - Sugar Free - Strawberry Flavour - 60 Vegan Gummies**Vinco Supplements**£7.42**74 rev4mo ago](https://www.amazon.co.uk/dp/B0GQB2V1BT) [**Tonic Health Kids Magnesium Gummies - 120mg Magnesium Citrate for Children Ashwagandha KSM-66 Lemon Balm - No Sugar Calm and Balanced - Age 3-12 Years Vegan - Raspberry 60 Count**Tonic Health**£15.23**78 rev9mo ago](https://www.amazon.co.uk/dp/B0G5ZWFKTN) [**Kids Magnesium Gummies - 90 Vegan Gummies - 3 Months Supply - 1 per Day**maxmedix**£13.46**147 rev1y ago](https://www.amazon.co.uk/dp/B0FBVZ35TP) [**Kids Magnesium Glycinate Gummies 1 Month Supply | Sugar-Free Vegan & Chewable | 470mg Magnesium for Kids Providing 65mg to Support Calm Mind & Focus for Children Ages 3+ | Strawberry Flavour**8 Hour Sleepwell**£8.50**301 rev1y ago](https://www.amazon.co.uk/dp/B0DH32SH4H) [**Chewy Vites Kids Magnesium 2 Months Supply 60 Kids Vitamins Gummies 500mg Magnesium Citrate Providing 56mg per Gummy Real Fruit Juice Age 3 + Berries Flavour**CHEWY VITES**£7.75**318 rev2y ago](https://www.amazon.co.uk/dp/B0D9C2PYJ1)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Vinco Magnesium Glycinate Complex Gummies for Adults & Kids - Chelated Bisglycinate with Vitamin B6 C & D3 L-Theanine 5HTP - Time Release - Sugar Free - Strawberry Flavour - 60 Vegan Gummies**Vinco Supplements**£7.42**4.1★**▲ 384%**](https://www.amazon.co.uk/dp/B0GQB2V1BT) [**Tonic Health Kids Magnesium Gummies - 120mg Magnesium Citrate for Children Ashwagandha KSM-66 Lemon Balm - No Sugar Calm and Balanced - Age 3-12 Years Vegan - Raspberry 60 Count**Tonic Health**£15.23**3.4★**▲ 213%**](https://www.amazon.co.uk/dp/B0G5ZWFKTN) [**Kids Magnesium Gummies - 90 Vegan Gummies - 3 Months Supply - 1 per Day**maxmedix**£13.46**4.3★**▲ 75%**](https://www.amazon.co.uk/dp/B0FBVZ35TP) [**Kids Magnesium Glycinate Gummies 1 Month Supply | Sugar-Free Vegan & Chewable | 470mg Magnesium for Kids Providing 65mg to Support Calm Mind & Focus for Children Ages 3+ | Strawberry Flavour**8 Hour Sleepwell**£8.50**4.2★**▲ 16%**](https://www.amazon.co.uk/dp/B0DH32SH4H) [**Turn Me On Gummies Women - Maca Root Damiana Fenugreek Zinc Vitamin B6 & Ashwagandha - Gluten-Free & Vegan - 60 Gummies for Women - Novomins**novomins**£14.57**3.8★**— 9%**](https://www.amazon.co.uk/dp/B0D711HNZB)
**~~View all trending →~~**
## **What buyers say about magnesium for kids**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**24%
*“helps with sleep”*
**Taste-Overall**15%
*“Taste great and natural”*
**Quality-Overall**6%
*“No complaints from the kids”*
**Magnesium**5%
*“Each gummy features a well-balanced combination of 120mg of magnesium”*
**Flavor**5%
*“Nice flavour”*
**Ease Of Chewing/Swallowing**4%
*“They are quite chewy”*
**Vitamin**3%
*“Great vitamins”*
**Advertised Vs Actual Product**2%
*“Seems to be what is advertised”*
**Sweetness**2%
*“Taste like sweets”*
**Value For Money**2%
*“Value for Money”*
### **What buyers complain about **
**Sleep Quality**16%
*“We had no improvement with sleep”*
**Taste-Overall**12%
*“Hmm strange taste”*
**Functionality-Overall**8%
*“Did not work”*
**Value For Money**7%
*“Not worth the money”*
**Age Suitability**4%
*“Didnt have any effect on either of my children with adhd”*
**Quality-Overall**4%
*“not the best product”*
**Magnesium**3%
*“Slightly low magnesium amount -”*
**Vitamin**3%
*“But after a very painful flare up on my endometriosis I realised that the maca root within this vitamin can cause these symptoms to become worse”*
**Side Effects**2%
*“bloating for over a week”*
**Hard Feel**2%
*“Little hard”*
### **Top return reasons **
**Vegan/Organic**33%
**Functionality-Overall**22%
**Taste-Overall**11%
**Value For Money**11%
**Age Suitability**11%
**Vitamin**11%
## **Common questions**
- **Is magnesium for kids profitable to sell on Amazon United Kingdom?**
- The niche generates £524K/yr across 10 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -37.4%. Flapen's verdict: Skip it (48/100).
- **How competitive is the magnesium for kids niche?**
- 7 brands and 27 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in magnesium for kids?**
- Top complaints mined from reviews: Sleep Quality, Taste-Overall, Functionality-Overall. The return rate is 0.1%.
- **When does demand for magnesium for kids peak?**
- Demand peaks in Jan–Feb; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the magnesium for kids niche?**
- Listings span £7.14–£17.58; the average listing price is £10.74 (sweet spot $15–$100). The average incumbent carries 1,063 reviews — the moat a new listing must climb.
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