Is calcium citrate powder profitable to sell on Amazon United States?

The niche generates $66K/yr across 11 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +0.8%. Flapen's verdict: Skip it (44/100).

How competitive is the calcium citrate powder niche?

9 brands and 18 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 88% of demand.

What do buyers complain about in calcium citrate powder?

Top complaints mined from reviews: Calcium, Value For Money, Dosage. The return rate is 0.0%.

When does demand for calcium citrate powder peak?

Demand is steady year-round — the busiest month runs 1.6× the quietest.

What does it cost to enter the calcium citrate powder niche?

Listings span $8.11–$31.39; the average listing price is $15.96 (sweet spot $15–$100). The average incumbent carries 1,013 reviews — the moat a new listing must climb.

calcium citrate powder

Skip it

A concentrated shelf (top 5 take 82% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Great10.9%

search→purchase rate — share of searches ending in a sale

Avg price

Great$15.96

avg listing price — sweet spot $15–$100

Price range

Good$8.11–$31.39

cheapest to priciest tracked listing — scored on the share inside $15–$100

Review moat

Good1,012.73

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay88%

top-5 brand share — brands hold most of the demand

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Okay+0.8%

90-day search growth — must beat 0% to launch

Market size

Bad$66K

$66K/yr · 38K searches

Competition

Bad82%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, calcium citrate powder is a $66K/yr Amazon United States market (38K searches/yr). The top 5 brands hold 88% of demand. Verdict: Skip it — 44/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

calcium citrate powder market data

Units sold / yr: 4K–5K; avg 500–750/product
Revenue / yr: $64K–$80K; units × avg price
Conversion rate: 10.9%
Avg BSR: #1,007
Page quality: 0%
Prime: 91%
Sponsored: 91%
Out of stock: 12.8%
Avg brand age: 92 months
Avg seller age: 178 days

Competition & brand share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 rising

Sellers

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

NOW Foods34%
Nutricost28%
BulkSupplements11%
Best Naturals8%
PURE ORIGINAL INGREDIENTS6%
mGanna3%
Open — no brand owns it (3 brands, 9%)

Demand & seasonality

Weekly Amazon search volume, last 60 weeks — +0.8% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.6×

Open Trend

Top calcium citrate powder 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

NOW Foods Supplements Calcium Citrate Powder Highly Bioavailable Calcium Supports Bone Health* 8-Ounce

NOW Foods$10.654.6★1,573 rev

Nutricost Calcium Citrate Powder (250 Grams) Unflavored

Nutricost$11.924.4★757 rev

BulkSupplements.com Calcium Citrate Powder - Calcium Supplement High Bioavailable - Unflavored & Gluten Free 4.5g per Serving 250g (8.8 oz) (Pack of 1)

BulkSupplements$15.924.4★1,744 rev

Nutricost Calcium Citrate Powder (Unflavored) 500 Grams Gluten-Free

Nutricost$17.684.4★757 rev

Best Naturals Calcium Citrate Powder - Calcium Supplement High Bioavailable 3000 mg per Serving (600 mg Elemental Calcium) - Unflavored & Gluten Free - 1 Pound

Best Naturals$15.014.5★48 rev

Newest

by launch date

Vitamatic Calcium Citrate Powder 3000 mg per Serving Provides 720 mg Elemental Calcium 500 g (17.6 oz) Unflavored Dietary Supplement

Vitamatic$14.9918 rev

3mo ago

Calcium Citrate Powder USP - 1 kg (2.2 lb) - Preservative Ingredient & Natural Antacid - Electrolyte Salt - Anticaking Agent Tablet Capsule Vitamin Supplement Excipient

Vivion$24.921 rev

7mo ago

Best Naturals Calcium Citrate Powder - Calcium Supplement High Bioavailable 3000 mg per Serving (600 mg Elemental Calcium) - Unflavored & Gluten Free - 1 Pound

Best Naturals$15.0148 rev

1y ago

mGanna 100% Calcium Citrate Powder (Food Grade) Versatile Highly Absorbable Calcium Source 0.5 lbs/ 227 g

mGanna$10.0215 rev

1y ago

Pure Original Ingredients Calcium Citrate (1lb) Calcium Supplement No Additives or Fillers

PURE ORIGINAL INGREDIENTS$15.01133 rev

5y ago

What buyers say about calcium citrate powder

What buyers praise and complain about, mined from review topics.

What buyers love

Calcium27%

“Great pure calcium”

Quality-Overall18%

“Excellent, clean, well-made supplement”

Value For Money6%

“Good value”

Ease Of Chewing/Swallowing6%

“A great alternative if you find it difficult to swallow capsules”

Ease Of Use5%

“Super easy to use”

Solubility5%

“The powder dissolves very well”

Vitamin4%

“Good brand, good supplement, good price”

Taste-Overall3%

“doesn't add any strange taste to my drinks”

Advertised Vs Actual Product3%

“As advertised and on time”

Ingredients-Overall2%

“I also like the clean ingredient list without a bunch of unnecessary extras”

What buyers complain about

Calcium10%

“Using other calcium citrate supplements didn't work”

Value For Money7%

“Too pricey”

Dosage6%

“An eight pill per day regime to reach that therapeutic dosing is very frustrating and expensive”

Size-Overall4%

“they are huge”

Taste-Overall4%

“This broke open a capsule broke up and leaked and it just the whole ruined the whole thing it just tasted inside to throw it out and I had to get a refund through Amazon because it did it about halfway through the bottle”

Solubility4%

“Doesnt mix well”

Acid Regulator/Stomach Ache Relief3%

“I do have stomach sensitivities”

Side Effects3%

“Does Have Side Effects”

Flavor3%

“It has no flavor”

Quality-Overall2%

“I don't think that the quality of the product is any good”

Top return reasons

Calcium56%

Vitamin33%

Hard Feel6%

Ease Of Use6%

Common questions

Is calcium citrate powder profitable to sell on Amazon United States?: The niche generates $66K/yr across 11 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +0.8%. Flapen's verdict: Skip it (44/100).
How competitive is the calcium citrate powder niche?: 9 brands and 18 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in calcium citrate powder?: Top complaints mined from reviews: Calcium, Value For Money, Dosage. The return rate is 0.0%.
When does demand for calcium citrate powder peak?: Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the calcium citrate powder niche?: Listings span $8.11–$31.39; the average listing price is $15.96 (sweet spot $15–$100). The average incumbent carries 1,013 reviews — the moat a new listing must climb.