calcium citrate
Worth a lookShows low returns (0.1%), but soft demand (-8.0% this quarter) keeps it on the watch list.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great9.4%search→purchase rate — share of searches ending in a sale
Review moat
Good648.87avg incumbent reviews — the moat a new listing must climb
Brand share
Good69%top-5 brand share — brands hold most of the demand
Avg price
Good£12.96avg listing price — sweet spot $15–$100
Price range
Good£5.62–£27.43cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay55%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Bad£90K£90K/yr · 74K searches
Growth
Bad-8.0%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, calcium citrate is a £90K/yr Amazon United Kingdom market (74K searches/yr). The top 5 brands hold 69% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
calcium citrate market data
- Units sold / yr
- 6K–8K
- avg 100–250/product
- Revenue / yr
- £78K–£104K
- units × avg price
- Conversion rate
- 9.4%
- Avg BSR
- #72
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 74%
- Out of stock
- 5.8%
- Avg brand age
- 61 months
- Avg seller age
- 171 days
Competition & brand share
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.Brands
17 flat
Sellers
40
Top-5 brand share
69%
Top 20: 100%
Top-5 click share
55%
Top 20: 97%
Open market
26%
- Solgar32%
- ECO-VITS17%
- SOLARAY9%
- NEO-NUTRITION6%
- Best Naturals5%
- FürstenMED5%
Demand
Weekly Amazon search volume, last 33 weeks — -8.0% search growth over the last 90 days.Top calcium citrate search terms
- calcium citrate51K/yr
- calcium citrate supplements3K/yr
- calcium citrate with vitamin d34K/yr
- calcium citrate 500mg5K/yr
- solgar calcium citrate with vitamin d32K/yr
- solgar calcium3K/yr
- calcium citrate 1000mg5K/yr
Top calcium citrate 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.
All 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Solgar Calcium Citrate with Vitamin D3 - Healthy Bones & Teeth - High Potency Formula - 240 Tablets
Solgar£17.584.4★1,083 rev
ECO-VITS Calcium Citrate 1000mg 60 Tablets Highly Absorbable Form for Strong Bones & Teeth
ECO-VITS£7.774.5★57 rev
Solgar Calcium Citrate with Vitamin D3 Tablets - Pack of 60 - Healthy Bones & Teeth - High Potency Formula - Gluten Free
Solgar£5.624.4★491 rev
Solaray Calcium Citrate with Vitamin D3 90 Capsules Bone & Joint Support
SOLARAY£7.454.3★123 rev
Neo Calcium Citrate Capsules - High Dose of Pure Calcium Citrate for Strong Bones & Teeth - 60 Capsules - Vegan & Additive-Free
NEO-NUTRITION£7.714.6★20 rev
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£13.4747 rev
Neo Calcium Citrate Capsules - High Dose of Pure Calcium Citrate for Strong Bones & Teeth - 60 Capsules - Vegan & Additive-Free
NEO-NUTRITION£7.7120 rev
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£8.36250 rev
Calcium Citrate 330 mg 100 Capsules | High-Absorption Supplement for Bones Teeth and Muscle Function by BIOHERBA
BIOHERBA£10.0416 rev
FürstenMED Calcium Citrate Capsules - High Dose of Pure Calcium Citrate for Strong Bones & Teeth - 120 Capsules - Vegan & Additive-Free
FürstenMED£17.60352 rev
Trending
90-day click momentumCalcium 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£13.474.4★
Calcium Citrate 500mg 90 Vegan Capsules - Calcium Tablets Supplement for Bones Teeth Muscle Function Energy-Yielding Metabolism Nerve Health UK Made Premium Quality | Just Vitamins
Just Vitamins£9.934.6★
Neo Calcium Citrate Capsules - High Dose of Pure Calcium Citrate for Strong Bones & Teeth - 60 Capsules - Vegan & Additive-Free
NEO-NUTRITION£7.714.6★
Calcium Citrate 330 mg 100 Capsules | High-Absorption Supplement for Bones Teeth and Muscle Function by BIOHERBA
BIOHERBA£10.044.1★
Solgar Calcium Citrate with Vitamin D3 - Healthy Bones & Teeth - High Potency Formula - 240 Tablets
Solgar£17.584.4★
What buyers say about calcium citrate
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality tablets”
“Good quality calcium”
“I like that it also includes B vitamins”
“is absolutely worth the money”
“It helps my brittle bone problems”
“The product is as advertised”
“They were fine as a food supplement”
“The capsules are easy to take”
“Surprisingly effective”
“Well pleased with fast delivery and the dosage”
What buyers complain about
“Hard to swallow”
“These tablets are absolutely huge”
“thinking I was getting my daily calcium needs as I cannot eat any dairy at all”
“because trying to get the things down in one go - two goes, actually, as each giant bullet is only half a dose - is difficult”
“Hard to swallow”
“I felt absolutely no different after taking these vitamin D tablets”
“felt unsettled at night”
“a bit pricey”
“Very misleading listing”
“I can feel them go all the way down when washed down with a grape”
Common questions
- Is calcium citrate profitable to sell on Amazon United Kingdom?
- The niche generates £90K/yr across 23 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -8.0%. Flapen's verdict: Worth a look (53/100).
- How competitive is the calcium citrate niche?
- 17 brands and 40 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 69% of demand.
- What do buyers complain about in calcium citrate?
- Top complaints mined from reviews: Ease Of Chewing/Swallowing, Size-Overall, Calcium. The return rate is 0.1%.
- What does it cost to enter the calcium citrate niche?
- Listings span £5.62–£27.43; the average listing price is £12.96 (sweet spot $15–$100). The average incumbent carries 649 reviews — the moat a new listing must climb.