Is cod liver oil for kids profitable to sell on Amazon United States?

The niche generates $109K/yr across 19 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -39.8%. Flapen's verdict: Skip it (42/100).

How competitive is the cod liver oil for kids niche?

7 brands and 556 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 95% of demand.

What do buyers complain about in cod liver oil for kids?

Top complaints mined from reviews: Taste-Overall, Flavor, Texture/Consistency-Overall. The return rate is 0.0%.

When does demand for cod liver oil for kids peak?

Demand peaks in Mar; the busiest month runs 3.4× the quietest.

What does it cost to enter the cod liver oil for kids niche?

Listings span $10.06–$36.44; the average listing price is $25.18 (sweet spot $15–$100). The average incumbent carries 2,763 reviews — the moat a new listing must climb.

cod liver oil for kids

Skip it

Soft demand (-39.8% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$25.18

avg listing price — sweet spot $15–$100

Price range

Great$10.06–$36.44

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

Conversion

Good6.1%

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

Review moat

Okay2,762.58

avg incumbent reviews — the moat a new listing must climb

Competition

Okay64%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$109K

$109K/yr · 71K searches

Brand share

Bad95%

top-5 brand share — brand-locked demand

Growth

Bad-39.8%

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

According to Flapen's Amazon United States niche tracking, cod liver oil for kids is a $109K/yr Amazon United States market (71K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Mar. Verdict: Skip it — 42/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

cod liver oil for kids market data

Units sold / yr: 4K–5K; avg 100–250/product
Revenue / yr: $101K–$126K; units × avg price
Conversion rate: 6.1%
Avg BSR: #256
Page quality: 0%
Prime: 89%
Sponsored: 53%
Out of stock: 0.0%
Avg brand age: 75 months
Avg seller age: 170 days

Competition & brand share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

7 falling

Sellers

556

Top-5 brand share

95%

Top 20: 100%

Top-5 click share

64%

Top 20: 100%

Open market

CHILDLIFE ESSENTIALS31%
Nordic Naturals26%
Carlson22%
LILICARE10%
SCOTT'S EMULSION6%
Babivek3%
Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -39.8% search growth over the last 90 days.

Peak months: Mar · busiest ÷ quietest = 3.4×

Open Trend

Top cod liver oil for kids search terms

cod liver oil for kids47K/yr -41.5%4.3% conv.
cod liver oil kids13K/yr -36.5%5.1% conv.
kids cod liver oil11K/yr -36.9%6.0% conv.

All search terms

Top cod liver oil for kids 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

ChildLife Essentials Cod Liver Fish Oil for Kids Strawberry 8 fl Oz

CHILDLIFE ESSENTIALS$22.984.5★1,178 rev

Nordic Naturals Childrens DHA Strawberry - 8 oz for Kids - 530 mg Omega-3 with EPA & DHA - Brain Development & Function - Non-GMO - 96 Servings

Nordic Naturals$29.034.6★10,556 rev

Cod Liver Oil Gummies 1000mg for Adults & Kids 9+ w/Omega 3 (EPA & DHA) Vitamins A D3 & K2 - Cod Liver Oil Omega 3 Gummies for Immune Brain & Cognitive Support SugarFree Orange Flavor 120Cts

LILICARE$36.444.6★133 rev

Carlson - Kids Cod Liver Oil 550 mg Omega-3s Vitamins A & D3 Wild Norwegian Bubble Gum 250 mL

Carlson$31.844.6★622 rev

Carlson - Kids Cod Liver Oil 550 mg Omega-3s Vitamins A & D3 Wild Norwegian Lemon 250 mL

Carlson$30.774.7★1,368 rev

Newest

by launch date

SCOTTS EMULSION Cod Liver Oil for Kids Orange Fruits & Cherry Flavors Fish Oil for Kids with Omega 3 Vitamins A D E & B1 Cod Liver Oil Liquid 3-Pack 6.5 Fl Oz Each

SCOTT'S EMULSION$25.2011 rev

5mo ago

SCOTTS EMULSION Cod Liver Oil Liquid for Kids Fruits Flavor Supports Growth Immunity & Bone Health Rich in Omega 3 & Vitamins A+D Easy-to-Take Fish Oil 6.5 Fl Oz

SCOTT'S EMULSION$10.2991 rev

7mo ago

SCOTTS EMULSION Cod Liver Oil | Orange | 6.5 fl oz | 1-Pack

SCOTT'S EMULSION$10.23148 rev

7mo ago

Babivek Cod Liver Oil Gummies 1000mg for Adults & Kids with Omega-3 Vitamin A & D3 Fish Oil Supplement Supports Eye Health Brain Function & Bone Health Sugar-Free Non-GMO Gluten-Free 60 Count

Babivek$10.0617 rev

1y ago

Cod Liver Oil Gummies 1000mg for Adults & Kids 9+ w/Omega 3 (EPA & DHA) Vitamins A D3 & K2 - Cod Liver Oil Omega 3 Gummies for Immune Brain & Cognitive Support SugarFree Orange Flavor 120Cts

LILICARE$36.44133 rev

1y ago

What buyers say about cod liver oil for kids

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

What buyers love

Quality-Overall21%

“Overall, it is a high-quality, reliable supplement that delivers great nutritional benefits”

Taste-Overall20%

“Amazing taste”

Flavor10%

“The flavor is mild”

Vitamin5%

“This vitamin supplement is very good”

Ease Of Chewing/Swallowing5%

“happily chews them right up”

Ease Of Use3%

“easy to use”

Nutritional Content3%

“it gives me peace of mind knowing that Im supporting my daily health”

Ingredients-Overall2%

“Good ingredients”

Efficiency2%

“its effective”

Value For Money2%

“the price is affordable”

What buyers complain about

Taste-Overall20%

“The aftertaste is ROUGH”

Flavor8%

“Awful flavor”

Texture/Consistency-Overall7%

“Odd texture”

Value For Money6%

“Costly”

Smell6%

“Too much of a fishy smell and taste”

Allergies3%

“Allergic reaction”

Vitamin2%

“My only issue is that cod liver naturally contain vitamins A and D”

Leak-Proof2%

“My only con is the bottle always drips”

Ease Of Chewing/Swallowing2%

“refused to eat”

Natural Resource Wastage2%

“Waste of money”

Top return reasons

Value For Money21%

Leak-Proof14%

Ease Of Chewing/Swallowing11%

Taste-Overall11%

Adhesion/Stickiness7%

Dosage7%

Smell7%

Quality-Overall7%

Vitamin7%

Durability7%

Common questions

Is cod liver oil for kids profitable to sell on Amazon United States?: The niche generates $109K/yr across 19 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -39.8%. Flapen's verdict: Skip it (42/100).
How competitive is the cod liver oil for kids niche?: 7 brands and 556 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 95% of demand.
What do buyers complain about in cod liver oil for kids?: Top complaints mined from reviews: Taste-Overall, Flavor, Texture/Consistency-Overall. The return rate is 0.0%.
When does demand for cod liver oil for kids peak?: Demand peaks in Mar; the busiest month runs 3.4× the quietest.
What does it cost to enter the cod liver oil for kids niche?: Listings span $10.06–$36.44; the average listing price is $25.18 (sweet spot $15–$100). The average incumbent carries 2,763 reviews — the moat a new listing must climb.