Is dr berg sea kelp enhanced iodine profitable to sell on Amazon United States?

The niche generates $49K/yr across 8 tracked products. 90-day search growth is -13.5%. Flapen's verdict: Skip it (41/100).

How competitive is the dr berg sea kelp enhanced iodine niche?

8 brands and 17 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 88% of demand.

What do buyers complain about in dr berg sea kelp enhanced iodine?

Top complaints mined from reviews: Taste-Overall, Side Effects, Dosage. The return rate is 0.0%.

When does demand for dr berg sea kelp enhanced iodine peak?

Demand peaks in Nov; the busiest month runs 2.2× the quietest.

What does it cost to enter the dr berg sea kelp enhanced iodine niche?

Listings span $10.29–$33.84; the average listing price is $17.85 (sweet spot $15–$100). The average incumbent carries 1,972 reviews — the moat a new listing must climb.

dr berg sea kelp enhanced iodine

Skip it

A concentrated shelf (top 5 take 88% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible13.7%

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

Avg price

Great$17.85

avg listing price — sweet spot $15–$100

Price range

Great$10.29–$33.84

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

Review moat

Okay1,972

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

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-13.5%

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

Market size

Bad$49K

$49K/yr · 20K searches

Competition

Bad88%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, dr berg sea kelp enhanced iodine is a $49K/yr Amazon United States market (20K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Nov. Verdict: Skip it — 41/100.

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

dr berg sea kelp enhanced iodine market data

Units sold / yr: 2K–3K; avg 250–500/product
Revenue / yr: $36K–$45K; units × avg price
Conversion rate: 13.7%
Avg BSR: #907
Page quality: 0%
Prime: 100%
Sponsored: 63%
Out of stock: 1.7%
Avg brand age: 76 months
Avg seller age: 147 days

Competition & brand share

The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 falling

Sellers

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

88%

Top 20: 100%

Open market

Dr. Berg Nutritionals68%
Carlyle6%
Horbäach5%
Triquetra Health5%
Complete Natural Products4%
NOW Foods4%
Open — no brand owns it (2 brands, 8%)

Demand & seasonality

Weekly Amazon search volume, last 87 weeks — -13.5% search growth over the last 90 days.

Peak months: Nov · busiest ÷ quietest = 2.2×

Open Trend

Top dr berg sea kelp enhanced iodine search terms

seaweed supplement9K/yr -9.8%2.8% conv.
dr berg iodine4K/yr -15.7%14.5% conv.
dr berg sea kelp3K/yr -14.7%18.4% conv.
seaweed pills2K/yr -11.8%0.9% conv.
dr berg sea kelp enhanced iodine2K/yr -23.8%21.6% conv.

All search terms

Top dr berg sea kelp enhanced iodine 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 8 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Dr. Berg Sea Kelp Enhanced Iodine - 200 mcg of Premium Iodine - Seaweed Blend Includes Klamath Blue-Green Algae & Sea Kelp - 90 Capsules

Dr. Berg Nutritionals$33.844.8★612 rev

Carlyle Sea Kelp Iodine Supplement | 225mcg | 300 Tablets

Carlyle$10.294.6★2,128 rev

Horbach Brown Seaweed Extract Capsules | 200 Pills

Horbäach$17.844.5★683 rev

Organic Iodine Supplement from Sea Vegetable Complex Whole Food & Raw Form - Iodine Plus Trace Mineral Complex Contains Purest Icelandic Sea Kelp Irish Moss & Bladderwrack (250 mcg)

Triquetra Health$17.794.7★1,900 rev

CNP | Icelandic Sea Kelp Capsules 600mg - Iodine Thyroid Support Pills

Complete Natural Products$11.954.7★536 rev

Newest

by launch date

Dr. Berg Sea Kelp Enhanced Iodine - 200 mcg of Premium Iodine - Seaweed Blend Includes Klamath Blue-Green Algae & Sea Kelp - 90 Capsules

Dr. Berg Nutritionals$33.84612 rev

2y ago

Organic Iodine Supplement from Sea Vegetable Complex Whole Food & Raw Form - Iodine Plus Trace Mineral Complex Contains Purest Icelandic Sea Kelp Irish Moss & Bladderwrack (250 mcg)

Triquetra Health$17.791,900 rev

3y ago

Carlyle Sea Kelp Iodine Supplement | 225mcg | 300 Tablets

Carlyle$10.292,128 rev

4y ago

Organic Lugols Iodine Liquid Drops Supplement - 2% Thyroid Non-GMO 2 Oz

Earth Harmony Naturals$17.015,102 rev

5y ago

Horbach Brown Seaweed Extract Capsules | 200 Pills

Horbäach$17.84683 rev

7y ago

What buyers say about dr berg sea kelp enhanced iodine

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

What buyers love

Quality-Overall24%

“Excellent product”

Advertised Vs Actual Product9%

“was as advertised”

Value For Money7%

“Great Value”

Energy Level5%

“seems to help me with energy”

Vitamin5%

“It is a good supplement for me”

Hormonal Balance5%

“Bonus: sea kelp helps with managing estrogen too so it is a must have for women who are dealing with hormone fluctuations”

Dosage4%

“Small doses producing immeasurable results”

Nutritional Content4%

“is just right for daily support”

Efficiency3%

“Works well”

Regulates Digestion3%

“This really helped me along with thyroid med to be more stable”

What buyers complain about

Taste-Overall14%

“It does not taste so pleasant”

Side Effects6%

“all of a sudden I woke up with pain”

Dosage6%

“Three drops is absolutely not enough”

Value For Money4%

“Bummed it has increased in price so much”

Dilute/Watery4%

“I never realized just how watered down my iodine drops were until I bought Lugols”

Ingredients-Overall4%

“Had they not included this random extra ingredient”

Oral Hygiene3%

“Don't use liquid dropper directly on tongue”

Iron3%

“From what I see most people are iodine deficient”

Magnesium3%

“Potassium ineffective”

Leak-Proof3%

“Bottle arrived broken and leaking”

Top return reasons

Moist/Dry50%

Taste-Overall50%

Common questions

Is dr berg sea kelp enhanced iodine profitable to sell on Amazon United States?: The niche generates $49K/yr across 8 tracked products. 90-day search growth is -13.5%. Flapen's verdict: Skip it (41/100).
How competitive is the dr berg sea kelp enhanced iodine niche?: 8 brands and 17 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in dr berg sea kelp enhanced iodine?: Top complaints mined from reviews: Taste-Overall, Side Effects, Dosage. The return rate is 0.0%.
When does demand for dr berg sea kelp enhanced iodine peak?: Demand peaks in Nov; the busiest month runs 2.2× the quietest.
What does it cost to enter the dr berg sea kelp enhanced iodine niche?: Listings span $10.29–$33.84; the average listing price is $17.85 (sweet spot $15–$100). The average incumbent carries 1,972 reviews — the moat a new listing must climb.