---
title: "Calcium Magnesium — £118K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/calcium-magnesium"
last_updated: "2026-07-31T08:58:36.035Z"
locale: en
meta:
description: "Niche score 45/100 · £118K/yr market · 105K searches/yr · £13.42 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 45/100 · £118K/yr market · 105K searches/yr · £13.42 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Calcium Magnesium — £118K/yr Amazon UK Niche (2026) - Flapen"
---
# **calcium magnesium**
**Skip it**
Brand-locked demand (top 5 brands take 95% of clicks) — this niche doesn't clear our bar today.
Market size 28Growth 16Conversion 80Competition 53Returns 100Price range 71Avg price 62Brand share 14Review moat 25Quality gap 32
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****8.4%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****£4.17–£42.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****£13.42**
avg listing price — sweet spot $15–$100
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£118K**
£118K/yr · 105K searches
**Review moat**
**Bad****4,888.96**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-18.9%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, calcium magnesium is a £118K/yr Amazon United Kingdom market (105K searches/yr). The top 5 brands hold 95% of demand. Verdict: Skip it — 45/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **calcium magnesium market data**
- **Units sold / yr**
- **6K–8K**
- avg 250–500/product
- **Revenue / yr**
- **£81K–£107K**
- units × avg price
- **Conversion rate**
- **8.4%**
- **Avg BSR**
- **#140**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **75%**
- **Out of stock**
- **1.9%**
- **Avg brand age**
- **53 months**
- **Avg seller age**
- **169 days**
## **Competition & brand share**
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**7 **▼falling
**Sellers**
**66**
**Top-5 brand share**
**95%**
Top 20: 98%
**Top-5 click share**
**53%**
Top 20: 94%
**Open market**
**3%**
- Solgar76% - Sanofi9% - Vitamin Store4% - Nutrition Geeks3% - SS Sport Supplies2% - --2% - Open — no brand owns it (1 brand, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -18.9% search growth over the last 90 days.
2K2KSpike '24Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/calcium-magnesium/trend)
## **Top calcium magnesium search terms**
- **solgar**64K/yr-19.1%2.9% conv. - **magnesium b6**12K/yr-29.2%9.1% conv. - **magnesium and vitamin b6**8K/yr+16.4%7.3% conv. - **magne b6**7K/yr-26.1%8.8% conv. - **solgar vitamins**3K/yr-11.9%2.3% conv. - **magnesium and b6**4K/yr-35.1%10.7% conv. - **magnesium with vitamin b6**3K/yr-20.6%15.7% conv. - **magne b6 forte**3K/yr-28.9%4.7% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/calcium-magnesium/search-terms)
## **Top calcium magnesium 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%10%£12K20%£24K30%£35K40%£47K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Solgar Magnesium with Vitamin B6 - Supports Energy Levels - Reduce Tiredness and Fatigue - Muscle Function - Vegan - 100 Tablets**Solgar**£5.25**4.5★3,811 rev](https://www.amazon.co.uk/dp/B000Z8YGGG) [2**Magne B6 N50 Tab - Relief for Nervousness Irritability Mild Anxiety Hypomagnesemia & Cramps**Sanofi**£11.50**4.8★62 rev](https://www.amazon.co.uk/dp/B09ZNZRDXV) [3**Solgar Skin Nails and Hair Improved MSM Formula To Help Build Collagen With Vitamin C Vegan Light Brown Pack of 120 310 g**Solgar**£14.45**4.4★8,116 rev](https://www.amazon.co.uk/dp/B002PN0O4M) [4**Solgar Male Multiple Tablets - Pack of 60 - Supports Metabolism and Reduces Fatigue - Immunity Health and Bone Heart - Vegan**Solgar**£15.26**4.6★616 rev](https://www.amazon.co.uk/dp/B000WMV9B0) [5**Solgar Formula VM-2000 - Multivitamin - Rich in Antioxidants - For when under Stress or Lack of Energy - 60 Tablets**Solgar**£14.34**4.6★2,581 rev](https://www.amazon.co.uk/dp/B000Z92MKC)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Zinc Magnesium and Vitamin B6 Tablets Supplements for Men & Women Pack of 180 Tablets (6 Months Supply) High Strength Sleep Aid Muscle Recovery Better Sleep UK**Red Label Health**£4.17**419 rev2y ago](https://www.amazon.co.uk/dp/B0CGDPK3MD) [**Zipvit Magnesium Glycinate 2000mg with 400mg Elemental Plus Vitamin B6 120 Vegan Tablets High Strength Magnesium Supplements**Zipvit**£7.91**2,240 rev2y ago](https://www.amazon.co.uk/dp/B0CCSPDBWC) [**Magnesium Glycinate 3-in-1 Complex - 1800mg Supplements as Bisglycinate Citrate & Malate 90 Vegan Capsules Triple High Absorption 384mg Elemental UK Made**Nutrition Geeks**£8.11**35,795 rev3y ago](https://www.amazon.co.uk/dp/B0C9VVCL12) [**Magnesium Glycinate Supplements 1500mg & Vitamin B6-120 High Strength Capsules - 1500mg of Magnesium Providing 315mg Elemental Magnesium (Bisglycinate) - Pure Active Ingredient**SS Sport Supplies**£8.12**6,499 rev3y ago](https://www.amazon.co.uk/dp/B0BR5X8FDF) [**Magne B6 N50 Tab - Relief for Nervousness Irritability Mild Anxiety Hypomagnesemia & Cramps**Sanofi**£11.50**62 rev4y ago](https://www.amazon.co.uk/dp/B09ZNZRDXV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Solgar Formula VM-2000 - Multivitamin - Rich in Antioxidants - For when under Stress or Lack of Energy - 60 Tablets**Solgar**£14.34**4.6★**▲ 115%**](https://www.amazon.co.uk/dp/B000Z92MKC) [**Solgar Male Multiple Tablets - Pack of 60 - Supports Metabolism and Reduces Fatigue - Immunity Health and Bone Heart - Vegan**Solgar**£15.26**4.6★**▲ 39%**](https://www.amazon.co.uk/dp/B000WMV9B0) [**Solgar Extra Strength Glucosamine Chondroitin MSM Tablets - Pack of 120 - Bone Joint and Cartilage Care - Shellfish Free - Gluten-Free**Solgar**£42.01**4.3★**▲ 36%**](https://www.amazon.co.uk/dp/B0011FTC84) [**Solgar Collagen Hyaluronic Acid Complex - Reduces Fine Lines & Wrinkles - Skin Hydration - Vitamin C - 30 Tablets**Solgar**£16.59**4.5★**▲ 27%**](https://www.amazon.co.uk/dp/B000Z94Z3Y) [**Zipvit Magnesium Glycinate 2000mg with 400mg Elemental Plus Vitamin B6 120 Vegan Tablets High Strength Magnesium Supplements**Zipvit**£7.91**4.6★**▲ 17%**](https://www.amazon.co.uk/dp/B0CCSPDBWC)
**~~View all trending →~~**
## **What buyers say about calcium magnesium**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**25%
*“Does help sleep”*
**Quality-Overall**15%
*“Excellent product”*
**Value For Money**9%
*“Fair price”*
**Magnesium**9%
*“Best magnesium out there”*
**Advertised Vs Actual Product**5%
*“As Advertised”*
**Vitamin**4%
*“Really good vitamins”*
**Muscle Pain Relief**4%
*“helps muscle cramps”*
**Efficiency**3%
*“Does the job”*
**Ease Of Chewing/Swallowing**3%
*“i've found no problem in swallowing them”*
**Ease Of Use**2%
*“Easy to use”*
### **What buyers complain about **
**Sleep Quality**14%
*“unable to sleep”*
**Magnesium**8%
*“This magnesium does not work”*
**Functionality-Overall**7%
*“Unfortunately doesnt work on me”*
**Size-Overall**7%
*“Tablets are so large”*
**Acid Regulator/Stomach Ache Relief**6%
*“Gives you stomach cramps”*
**Dosage**6%
*“The dosage is far too high”*
**Side Effects**5%
*“Will make you ill”*
**Ease Of Chewing/Swallowing**4%
*“I usually struggle with swallowing tablets”*
**Advertised Vs Actual Product**3%
*“It's not as described”*
**Value For Money**3%
*“Waste of money”*
### **Top return reasons **
**Joint Pain**50%
**Magnesium**50%
## **Common questions**
- **Is calcium magnesium profitable to sell on Amazon United Kingdom?**
- The niche generates £118K/yr across 24 tracked products. 90-day search growth is -18.9%. Flapen's verdict: Skip it (45/100).
- **How competitive is the calcium magnesium niche?**
- 7 brands and 66 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 95% of demand.
- **What do buyers complain about in calcium magnesium?**
- Top complaints mined from reviews: Sleep Quality, Magnesium, Functionality-Overall. The return rate is 0.1%.
- **When does demand for calcium magnesium peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the calcium magnesium niche?**
- Listings span £4.17–£42.01; the average listing price is £13.42 (sweet spot $15–$100). The average incumbent carries 4,889 reviews — the moat a new listing must climb.
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