Is zinc gluconate profitable to sell on Amazon United States?

The niche generates $244K/yr across 19 tracked products. 90-day search growth is -9.5%. Flapen's verdict: Skip it (45/100).

How competitive is the zinc gluconate niche?

10 brands and 90 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 90% of demand.

What do buyers complain about in zinc gluconate?

Top complaints mined from reviews: Dosage, Side Effects, Acid Regulator/Stomach Ache Relief. The return rate is 0.0%.

When does demand for zinc gluconate peak?

Demand peaks in Sep; the busiest month runs 28.7× the quietest.

What does it cost to enter the zinc gluconate niche?

Listings span $3.83–$40.20; the average listing price is $13.91 (sweet spot $15–$100). The average incumbent carries 16,779 reviews — the moat a new listing must climb.

zinc gluconate

Skip it

A deep review moat (16,779 avg reviews) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Great10.6%

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

Price range

Good$3.83–$40.20

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

Avg price

Good$13.91

avg listing price — sweet spot $15–$100

Market size

Okay$244K

$244K/yr · 165K searches

Competition

Okay67%

top-5 click share — leaders hold, buyers still browse

Brand share

Bad90%

top-5 brand share — brand-locked demand

Growth

Bad-9.5%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Review moat

Bad16,778.79

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, zinc gluconate is a $244K/yr Amazon United States market (165K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Sep. Verdict: Skip it — 45/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

zinc gluconate market data

Units sold / yr: 20K–25K; avg 1,000–1,250/product
Revenue / yr: $278K–$348K; units × avg price
Conversion rate: 10.6%
Avg BSR: #172
Page quality: 0%
Prime: 100%
Sponsored: 63%
Out of stock: 0.0%
Avg brand age: 97 months
Avg seller age: 158 days

Competition & brand share

The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 rising

Sellers

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

67%

Top 20: 100%

Open market

NOW Foods59%
Nutricost17%
Nature's Bounty6%
Pure Encapsulations5%
Amazing Nutrition4%
BulkSupplements3%
Open — no brand owns it (4 brands, 6%)

Demand & seasonality

Weekly Amazon search volume, last 102 weeks — -9.5% search growth over the last 90 days.

Peak months: Sep · busiest ÷ quietest = 28.7×

Open Trend

Top zinc gluconate search terms

zinc gluconate70K/yr -19.7%7.0% conv.
now zinc35K/yr -3.0%17.3% conv.
zinc now17K/yr -15.0%13.0% conv.
zinc gluconate 50mg14K/yr -7.3%12.1% conv.
zinc supplement now4K/yr +130.7%0.8% conv.
now foods zinc6K/yr +3.7%11.7% conv.
now zinc vitamins for adults3K/yr +115.1%0.4% conv.
now zinc 50mg6K/yr -19.2%26.7% conv.
gluconato de zinc3K/yr +6.4%1.8% conv.
zinc now foods3K/yr -6.7%10.5% conv.

All search terms

Top zinc gluconate 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 19 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

NOW Foods Supplements Zinc (Zinc Gluconate) 50 mg Supports Enzyme Functions* Immune Support* 250 Tablets

NOW Foods$10.054.8★1,124 rev

NOW Foods Supplements Zinc (Zinc Gluconate) 50 mg Supports Enzyme Functions* Immune Support* 100 Tablets

NOW Foods$4.944.7★12,912 rev

Nutricost Zinc Gluconate 240 Vegetarian Capsules (50mg) Gluten-Free

Nutricost$14.784.7★2,111 rev

Natures Bounty Zinc 50mg Immune Support & Antioxidant Supplement Promotes Skin Health 1 Caplet Per Day Gluten Free 250 Vegetarian Caplets

Nature's Bounty$8.544.7★215,458 rev

Now Supplements Zinc Picolinate 50 mg Supports Enzyme Functions Immune Support Non-GMO Kosher Suitable for Vegans - 240 Vegetarian Capsules

NOW Foods$19.544.8★438 rev

Newest

by launch date

BulkSupplements.com Zinc Gluconate Capsules - Zinc Supplements for Immune Support - Gluten Free 1 Capsule per Serving 365 Count (Pack of 1)

BulkSupplements$16.39202 rev

1y ago

Now Supplements Zinc Picolinate 50 mg Supports Enzyme Functions Immune Support Non-GMO Kosher Suitable for Vegans - 240 Vegetarian Capsules

NOW Foods$19.54438 rev

2y ago

Natures Bounty Zinc 50mg Immune Support & Antioxidant Supplement Promotes Skin Health 1 Caplet Per Day Gluten Free 250 Vegetarian Caplets

Nature's Bounty$8.54215,458 rev

5y ago

Nutrivein Premium Zinc Gluconate 100mg - 120 Capsules - Immunity Defense Boosts Immune System & Powerful Antioxidant - Promotes Healthy Skin and Acne Defense - Essential Elements for Absorption

Nutrivein$16.20573 rev

6y ago

Nutricost Zinc Gluconate 240 Vegetarian Capsules (50mg) Gluten-Free

Nutricost$14.782,111 rev

8y ago

What buyers say about zinc gluconate

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

What buyers love

Quality-Overall21%

“Great products all around”

Value For Money14%

“Money well spent”

Vitamin10%

“I like these vitamins a lot they are noted for great guality potency”

Advertised Vs Actual Product9%

“Works as indicated”

Ease Of Chewing/Swallowing5%

“easy to swallow caplets”

Immunity Booster4%

“This has helped with boosting my immune system”

Nutritional Content3%

“High quality supplement”

Cold Relief3%

“Helps fight away colds and flu”

Dosage3%

“Perfect dose in a capsule for daily intake”

Efficiency2%

“Functional”

What buyers complain about

Dosage14%

“Beware: dosage is too high”

Side Effects12%

“Side effects”

Acid Regulator/Stomach Ache Relief8%

“Nauseous”

Ease Of Use5%

“The capsule cant be opened”

Size-Overall5%

“Tiny”

Sleep Quality4%

“I couldnt sleep at night”

Nutritional Content3%

“this isn't healthy”

Quality-Overall3%

“Cheap”

Smell2%

“Absolutely horrible taste and smell”

Taste-Overall2%

“Tastes awful”

Top return reasons

Dosage36%

Functionality-Overall17%

Vitamin11%

Joint Pain6%

Taste-Overall6%

Contamination6%

Strength6%

Smell6%

Acid Regulator/Stomach Ache Relief6%

Ease Of Chewing/Swallowing3%

Common questions

Is zinc gluconate profitable to sell on Amazon United States?: The niche generates $244K/yr across 19 tracked products. 90-day search growth is -9.5%. Flapen's verdict: Skip it (45/100).
How competitive is the zinc gluconate niche?: 10 brands and 90 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 90% of demand.
What do buyers complain about in zinc gluconate?: Top complaints mined from reviews: Dosage, Side Effects, Acid Regulator/Stomach Ache Relief. The return rate is 0.0%.
When does demand for zinc gluconate peak?: Demand peaks in Sep; the busiest month runs 28.7× the quietest.
What does it cost to enter the zinc gluconate niche?: Listings span $3.83–$40.20; the average listing price is $13.91 (sweet spot $15–$100). The average incumbent carries 16,779 reviews — the moat a new listing must climb.