---
title: "Calcium Magnesium Zinc and Vitamin D — £110K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/calcium-magnesium-zinc-and-vitamin-d"
last_updated: "2026-07-31T09:04:41.364Z"
locale: en
meta:
description: "Niche score 41/100 · £110K/yr market · 69K searches/yr · £9.27 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · £110K/yr market · 69K searches/yr · £9.27 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Calcium Magnesium Zinc and Vitamin D — £110K/yr Amazon UK Niche (2026) - Flapen"
---
# **calcium magnesium zinc and vitamin d**
**Skip it**
Prices mostly outside the sweet spot ($4.87–$14.01) — this niche doesn't clear our bar today.
Market size 26Growth 18Conversion 98Competition 23Returns 100Price range 0Avg price 27Brand share 40Review moat 32Quality gap 38
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****17.1%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****81%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****3,332**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Okay****£9.27**
avg listing price — sweet spot $15–$100
**Market size**
**Okay****£110K**
£110K/yr · 69K searches
**Competition**
**Bad****73%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-13.1%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****£4.87–£14.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, calcium magnesium zinc and vitamin d is a £110K/yr Amazon United Kingdom market (69K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Jan–Nov. Verdict: Skip it — 41/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **calcium magnesium zinc and vitamin d market data**
- **Units sold / yr**
- **10K–13K**
- avg 500–750/product
- **Revenue / yr**
- **£93K–£116K**
- units × avg price
- **Conversion rate**
- **17.1%**
- **Avg BSR**
- **#47**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **92%**
- **Out of stock**
- **0.5%**
- **Avg brand age**
- **58 months**
- **Avg seller age**
- **164 days**
## **Competition & brand share**
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**11 **▼falling
**Sellers**
**54**
**Top-5 brand share**
**81%**
Top 20: 100%
**Top-5 click share**
**73%**
Top 20: 100%
**Open market**
**14%**
- WeightWorld32% - Solgar17% - Natures Aid12% - Nu U Nutrition11% - Nutravita9% - Horbäach5% - Open — no brand owns it (5 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 101 weeks — -13.1% search growth over the last 90 days.
4K3KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Nov · busiest ÷ quietest = 2.2×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/calcium-magnesium-zinc-and-vitamin-d/trend)
## **Top calcium magnesium zinc and vitamin d search terms**
- **calcium magnesium zinc and vitamin d**44K/yr-15.3%14.6% conv. - **calcium magnesium zinc**17K/yr-11.0%14.9% conv. - **magnesium zinc and vitamin d**5K/yr+13.2%6.6% conv. - **magnesium calcium zinc**4K/yr-25.6%14.8% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/calcium-magnesium-zinc-and-vitamin-d/search-terms)
## **Top calcium magnesium zinc and vitamin d 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%£11K20%£22K30%£33K40%£44K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Calcium Magnesium Zinc & Vitamin D Tablets | 1+ Year Supply | 400 Tablets**WeightWorld**£12.92**4.5★13,105 rev](https://www.amazon.co.uk/dp/B08TCG2RH7) [2**Natures Aid Calcium Magnesium Zinc - Supports Bones Teeth Muscle Function & Immunity - High Potency Natural Immune Health Supplement - Vegan Non-GMO Gluten-Free - 90 Tablets**Natures Aid**£5.82**4.5★4,304 rev](https://www.amazon.co.uk/dp/B000GY75V2) [3**Nu U Nutrition Calcium Magnesium Zinc & Vitamin D Supplement - 365 Vegetarian Tablets - High Strength Osteo Complex with Selenium Copper Manganese & Boron - 6 Month Supply**Nu U Nutrition**£14.01**4.5★4,167 rev](https://www.amazon.co.uk/dp/B01N295CCY) [4**Solgar Calcium Magnesium Plus Zinc Tablets - Pack of 100 - Healthy Bones Teeth & Muscles - Supports Health of Nervous System - Vegan**Solgar**£6.78**4.6★3,806 rev](https://www.amazon.co.uk/dp/B00020IC3K) [5**Nutravita Calcium Magnesium & Zinc with Vitamin D Copper Selenium Boron and Manganese - 365 Tablets - Calcium Magnesium & Zinc Supplment**Nutravita**£13.06**4.5★7,905 rev](https://www.amazon.co.uk/dp/B07PRRL737)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Calcium Tablets with Magnesium Zinc and Vitamin D | 100% Vegan | High Strength Complex | 120 Count | Supplement for Women & Men | by Horbaach**Horbäach**£5.56**161 rev2y ago](https://www.amazon.co.uk/dp/B0CVBJRYJ1) [**Calcium Magnesium Zinc and Vitamin D Plus Vitamin K2 MK-7 Supplement - 180 Vegan Tablets - High Strength Calcium Tablets Complex with Vitamin K2 Copper Manganese Selenium & Boron - UK Made**Supplement Tree**£8.27**256 rev2y ago](https://www.amazon.co.uk/dp/B0CSC4JZQ5) [**Calcium Magnesium Zinc and Vitamin D Supplement - 120 High Strength Tablets Supplement with Magnesium Vitamin D Zinc Tablets Complex Made in The UK by New Leaf**NEW LEAF PRODUCTS**£7.27**414 rev3y ago](https://www.amazon.co.uk/dp/B0C8J8LPRD) [**Holland & Barrett Calcium + Magnesium & Vitamin D 180 Tablets**Holland & Barrett**£8.63**183 rev3y ago](https://www.amazon.co.uk/dp/B0BL7JBS9B) [**Calcium Magnesium Zinc & Vitamin D Tablets | 1+ Year Supply | 400 Tablets**WeightWorld**£12.92**13,105 rev5y ago](https://www.amazon.co.uk/dp/B08TCG2RH7)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Holland & Barrett Calcium + Magnesium & Vitamin D 180 Tablets**Holland & Barrett**£8.63**4.5★**▲ 47%**](https://www.amazon.co.uk/dp/B0BL7JBS9B) [**Solgar Calcium Magnesium Plus Zinc Tablets - Pack of 100 - Healthy Bones Teeth & Muscles - Supports Health of Nervous System - Vegan**Solgar**£6.78**4.6★**▲ 44%**](https://www.amazon.co.uk/dp/B00020IC3K) [**Calcium Magnesium Zinc and Vitamin D Supplement - 120 High Strength Tablets Supplement with Magnesium Vitamin D Zinc Tablets Complex Made in The UK by New Leaf**NEW LEAF PRODUCTS**£7.27**4.4★**▲ 18%**](https://www.amazon.co.uk/dp/B0C8J8LPRD) [**Calcium Tablets with Magnesium Zinc and Vitamin D | 100% Vegan | High Strength Complex | 120 Count | Supplement for Women & Men | by Horbaach**Horbäach**£5.56**4.4★**▲ 17%**](https://www.amazon.co.uk/dp/B0CVBJRYJ1) [**Calcium Magnesium Zinc & Vitamin D Tablets | 1+ Year Supply | 400 Tablets**WeightWorld**£12.92**4.5★**▲ 13%**](https://www.amazon.co.uk/dp/B08TCG2RH7)
**~~View all trending →~~**
## **What buyers say about calcium magnesium zinc and vitamin d**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**25%
*“HELPS WITH SLEEP”*
**Quality-Overall**15%
*“Excellent product”*
**Value For Money**10%
*“Good value for money”*
**Magnesium**9%
*“best magnesium”*
**Advertised Vs Actual Product**5%
*“As Advertised”*
**Muscle Pain Relief**4%
*“helps muscle cramps”*
**Efficiency**4%
*“Works perfectly”*
**Vitamin**3%
*“The supplements really work”*
**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%
*“still cant sleep”*
**Magnesium**8%
*“This magnesium does not work”*
**Functionality-Overall**7%
*“These do not work as intended”*
**Size-Overall**7%
*“Size big”*
**Acid Regulator/Stomach Ache Relief**6%
*“Gives you stomach cramps”*
**Dosage**5%
*“The dosage is far too high”*
**Side Effects**5%
*“Will make you ill”*
**Quality-Overall**3%
*“Rubbish”*
**Ease Of Chewing/Swallowing**3%
*“A hard swallow”*
**Value For Money**3%
*“Waste of money”*
### **Top return reasons **
**Joint Pain**50%
**Magnesium**50%
## **Common questions**
- **Is calcium magnesium zinc and vitamin d profitable to sell on Amazon United Kingdom?**
- The niche generates £110K/yr across 12 tracked products. 90-day search growth is -13.1%. Flapen's verdict: Skip it (41/100).
- **How competitive is the calcium magnesium zinc and vitamin d niche?**
- 11 brands and 54 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 81% of demand.
- **What do buyers complain about in calcium magnesium zinc and vitamin d?**
- Top complaints mined from reviews: Sleep Quality, Magnesium, Functionality-Overall. The return rate is 0.1%.
- **When does demand for calcium magnesium zinc and vitamin d peak?**
- Demand peaks in Jan–Nov; the busiest month runs 2.2× the quietest.
- **What does it cost to enter the calcium magnesium zinc and vitamin d niche?**
- Listings span £4.87–£14.01; the average listing price is £9.27 (sweet spot $15–$100). The average incumbent carries 3,332 reviews — the moat a new listing must climb.
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