---
title: "Calcium and Vitamin D Tablets — £155K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/calcium-and-vitamin-d-tablets"
last_updated: "2026-07-31T09:01:19.303Z"
locale: en
meta:
description: "Niche score 47/100 · £155K/yr market · 134K searches/yr · £9.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · £155K/yr market · 134K searches/yr · £9.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Calcium and Vitamin D Tablets — £155K/yr Amazon UK Niche (2026) - Flapen"
---
# **calcium and vitamin d tablets**
**Skip it**
Soft demand (-20.9% this quarter) — this niche doesn't clear our bar today.
Market size 33Growth 15Conversion 95Competition 32Returns 100Price range 17Avg price 29Brand share 63Review moat 41Quality gap 47
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.1%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****67%**
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****2,448.8**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****£155K**
£155K/yr · 134K searches
**Competition**
**Okay****66%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Okay****£9.54**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****£2.50–£17.58**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-20.9%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, calcium and vitamin d tablets is a £155K/yr Amazon United Kingdom market (134K searches/yr). The top 5 brands hold 67% of demand. Verdict: Skip it — 47/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **calcium and vitamin d tablets market data**
- **Units sold / yr**
- **15K–20K**
- avg 750–1,000/product
- **Revenue / yr**
- **£143K–£191K**
- units × avg price
- **Conversion rate**
- **12.1%**
- **Avg BSR**
- **#50**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **75%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **61 months**
- **Avg seller age**
- **161 days**
## **Competition & brand share**
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**19 **▲rising
**Sellers**
**87**
**Top-5 brand share**
**67%**
Top 20: 100%
**Top-5 click share**
**66%**
Top 20: 100%
**Open market**
**28%**
- Vitabiotics Ultra25% - Vitamin Store20% - NEW LEAF PRODUCTS8% - AA Merchant7% - Nu U Nutrition7% - WeightWorld5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -20.9% search growth over the last 90 days.
4K3KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/calcium-and-vitamin-d-tablets/trend)
## **Top calcium and vitamin d tablets search terms**
- **calcium and vitamin d tablets**87K/yr-1.1%11.2% conv. - **vitamin d and calcium**18K/yr-33.5%8.6% conv. - **calcium and vitamin d**9K/yr-57.6%10.4% conv. - **vitamin d and calcium tablets**6K/yr-64.7%10.5% conv. - **calcium vitamin d**4K/yr-20.5%9.0% conv. - **vitamin d calcium**5K/yr-69.1%8.1% conv. - **vitamin d with calcium**3K/yr-17.0%10.5% conv. - **adcal**2K/yr-17.3%4.3% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/calcium-and-vitamin-d-tablets/search-terms)
## **Top calcium and vitamin d tablets 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%£15K20%£31K30%£46K40%£62K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Calcium and Vitamin D Tablets Vitabiotics Ultra (Pack of 1)**Vitabiotics Ultra**£2.50**4.5★3,038 rev](https://www.amazon.co.uk/dp/B06VY5DFT2) [2**Vitamin Store Calcium + Vitamin D Food Supplement 180 Tablets per Tub Pack of 2 Tubs 6 Months Supply**Vitamin Store**£7.38**4.6★864 rev](https://www.amazon.co.uk/dp/B096SSQJ9S) [3**2 x Calcium & Vitamin D Tablets 200 Tablets High Strength Supplement for Bone Health Immune Support & Muscle Function Vegetarian Easy-to-Swallow Essential Daily Calcium and Vitamin D3.**AA Merchant**£6.72**4.5★129 rev](https://www.amazon.co.uk/dp/B0DJFK3Q1L) [4**Calcium and Vitamin D3 Tablets - Calcium Supplement - 120 High Strength Tablets with Vitamin D3 - Made in The UK by New Leaf Bone & Muscle Health**NEW LEAF PRODUCTS**£8.36**4.4★250 rev](https://www.amazon.co.uk/dp/B0DX27WPBG) [5**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)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Calcium Supplement with Calcium Citrate Magnesium Zinc and Vitamin D3 K2 to Support Strong Bones Muscle Function Energy Metabolism and Overall Health (60 Servings 2 Month Supply)**Nootro Labs**£13.47**47 rev9mo ago](https://www.amazon.co.uk/dp/B0FXGX2419) [**Calcium with Magnesium Zinc & Vitamin D - 90 Tablets for 3 Months - Bone Muscle & Immune Support - Energy & Metabolism Boost - Gluten & Lactose Free - High Strength Supplement - Vitavea**Vitavea**£8.81**70 rev10mo ago](https://www.amazon.co.uk/dp/B0FR9B2DFX) [**Calcium and Vitamin D Tablets | 800mg Calcium & 200iu Vitamin D3 | Chewable Vegan Supplement | 120 Tablets - Tropical Berry Flavour | by Horbaach**Horbäach**£6.68**79 rev1y ago](https://www.amazon.co.uk/dp/B0FFN2Z96V) [**Calcium 1000mg & Vitamin D3 400iu | Supports Bone & Teeth Health | Contributes to Normal Muscle Function | Vegan & Vegetarian Friendly | 180 Tablets = 3 Months Supply | GMP-Certified & UK-Made**Simply Supplements**£10.06**33 rev1y ago](https://www.amazon.co.uk/dp/B0FC6QYY86) [**Calcium and Vitamin D3 Tablets - Calcium Supplement - 120 High Strength Tablets with Vitamin D3 - Made in The UK by New Leaf Bone & Muscle Health**NEW LEAF PRODUCTS**£8.36**250 rev1y ago](https://www.amazon.co.uk/dp/B0DX27WPBG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Calcium and Vitamin D3 Tablets - Calcium Supplement - 240 High Strength Calcium Tablets Supplement Calcium Vitamin D3 Tablets - Calcium Complex Made in The UK by New Leaf**NEW LEAF PRODUCTS**£14.51**4.4★**▲ 300%**](https://www.amazon.co.uk/dp/B0DT1G72V7) [**Calcium Supplement with Calcium Citrate Magnesium Zinc and Vitamin D3 K2 to Support Strong Bones Muscle Function Energy Metabolism and Overall Health (60 Servings 2 Month Supply)**Nootro Labs**£13.47**4.4★**▲ 171%**](https://www.amazon.co.uk/dp/B0FXGX2419) [**Calcium & Vitamin D3 500mg & 200IU High Strength Supplements Maintaining Healthy Bones Teeth & Nails | 60 Capsules**NutriVolv**£3.16**4.6★**▲ 113%**](https://www.amazon.co.uk/dp/B08Y88PWFV) [**Holland & Barrett Calcium + Magnesium & Vitamin D 180 Tablets**Holland & Barrett**£8.63**4.5★**▲ 95%**](https://www.amazon.co.uk/dp/B0BL7JBS9B) [**Calcium with Magnesium Zinc & Vitamin D - 90 Tablets for 3 Months - Bone Muscle & Immune Support - Energy & Metabolism Boost - Gluten & Lactose Free - High Strength Supplement - Vitavea**Vitavea**£8.81**4.2★**▲ 51%**](https://www.amazon.co.uk/dp/B0FR9B2DFX)
**~~View all trending →~~**
## **What buyers say about calcium and vitamin d tablets**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Excellent product”*
**Value For Money**15%
*“Best price”*
**Vitamin**13%
*“Effective vitamin”*
**Ease Of Chewing/Swallowing**10%
*“Chewable”*
**Advertised Vs Actual Product**6%
*“As advertised”*
**Ease Of Use**4%
*“which is really convenient”*
**Efficiency**3%
*“Very Effective”*
**Side Effects**3%
*“dont leave any aftertaste”*
**Calcium**2%
*“The calcium tablets worked effectively”*
**Dosage**2%
*“Dosage was convenient for me as well”*
### **What buyers complain about **
**Size-Overall**16%
*“Tablet is quite large”*
**Dosage**9%
*“it looks as if the dosage is very high”*
**Vitamin**8%
*“Whatever is in these either isn't Vitamin D or if it is”*
**Ease Of Chewing/Swallowing**7%
*“A hard swallow”*
**Side Effects**4%
*“doesnt have these effects”*
**Functionality-Overall**4%
*“Doesn't seem to work”*
**Nutritional Content**3%
*“Other products in the Nutrition Geeks line are a scam”*
**Calcium**3%
*“Very misleading, seems like to get 800 mg of calcium you have to take 2 a day”*
**Advertised Vs Actual Product**3%
*“and NONE of them are what they claim”*
**Quality-Overall**3%
*“which made me question its quality from the start”*
### **Top return reasons **
**Vitamin**100%
## **Common questions**
- **Is calcium and vitamin d tablets profitable to sell on Amazon United Kingdom?**
- The niche generates £155K/yr across 20 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -20.9%. Flapen's verdict: Skip it (47/100).
- **How competitive is the calcium and vitamin d tablets niche?**
- 19 brands and 87 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 67% of demand.
- **What do buyers complain about in calcium and vitamin d tablets?**
- Top complaints mined from reviews: Size-Overall, Dosage, Vitamin. The return rate is 0.1%.
- **When does demand for calcium and vitamin d tablets peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the calcium and vitamin d tablets niche?**
- Listings span £2.50–£17.58; the average listing price is £9.54 (sweet spot $15–$100). The average incumbent carries 2,449 reviews — the moat a new listing must climb.
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