Top 10 fish oil (omega-3) brands on Amazon (estimated revenue)

Ranked by estimated monthly revenue from Amazon's Fish Oil (Omega-3) Best Sellers top 100. Updated October 15, 2026.

Sports Research is the top-selling fish oil (omega-3) brand on Amazon by estimated revenue, at about $1.9M/mo from 3 products in the Fish Oil (Omega-3) Best Sellers top 100. That is about 19% more than #2 Carlson Labs (~$1.6M/mo). The list is fragmented: the top 3 brands take about 29% of its estimated sales and the top 10 about 63%, spread across 52 brands in total. All figures are modeled estimates, not Amazon data.

#BrandEst. revenue/moShare of listEst. units/moProductsBest rank
1Sports Research11% share · best #1$1.9M11%61.3K3#1
2Carlson Labs9% share · best #10$1.6M9%34.1K5#10
3Nature Made8% share · best #3$1.3M8%74.3K6#3
4Nordic Naturals7% share · best #22$1.2M7%22.1K4#22
5Nature's Bounty7% share · best #2$1.2M7%91.1K4#2
6Pure Encapsulations6% share · best #15$995K6%13.4K2#15
7Viva Naturals5% share · best #4$909K5%16.2K1#4
8Dr. Tobias3% share · best #8$525K3%13.1K1#8
9Wiley's3% share · best #27$442K3%10.9K2#27
10GNC3% share · best #30$423K3%8.8K2#30
Estimates, not official Amazon data. Rankings and revenue are modeled from public Amazon Best Sellers lists and list prices (units × price, before returns, discounts and fees; not profit) and may differ from real sales. How it works.

The top 10, brand by brand

1. Sports Research

~$1.9M/mo est. revenue (11% of this list) and ~61.3K units/mo from 3 products; best position #1. Its highest-ranked product here is Sports Research® Omega-3 Fish Oil 1250mg from Wild Alaska Pollock, 90 Count… at #1. Overall it ranks #13 of 3,452 brands.

2. Carlson Labs

~$1.6M/mo est. revenue (9% of this list) and ~34.1K units/mo from 5 products; best position #10. Its highest-ranked product here is Carlson The Very Finest Fish Oil, 1600 mg, Omega-3s, 500 mL (16.9 Fl. Oz)… at #10. Overall it ranks #63 of 3,452 brands.

3. Nature Made

~$1.3M/mo est. revenue (8% of this list) and ~74.3K units/mo from 6 products; best position #3. Its highest-ranked product here is Nature Made Fish Oil Omega 3 Supplements, 1000mg Softgels, 250 Softgels | Omega… at #3. Overall it ranks #4 of 3,452 brands.

4. Nordic Naturals

~$1.2M/mo est. revenue (7% of this list) and ~22.1K units/mo from 4 products; best position #22. Its highest-ranked product here is Nordic Naturals ProOmega, 1280 mg Omega-3, High Potency, Lemon, 180 Count… at #22. Overall it ranks #19 of 3,452 brands.

5. Nature's Bounty

~$1.2M/mo est. revenue (7% of this list) and ~91.1K units/mo from 4 products; best position #2. Its highest-ranked product here is Nature's Bounty Fish Oil 1200 Mg, Omega-3, 200 Softgels (Pack of 1) | Omega 3… at #2. Overall it ranks #7 of 3,452 brands.

6. Pure Encapsulations

~$995K/mo est. revenue (6% of this list) and ~13.4K units/mo from 2 products; best position #15. Its highest-ranked product here is Pure Encapsulations O.N.E. Omega, 60 Softgel Capsules | Fish Oil Supplement for… at #15. Overall it ranks #3 of 3,452 brands.

7. Viva Naturals

~$909K/mo est. revenue (5% of this list) and ~16.2K units/mo from 1 product; best position #4. Its highest-ranked product here is Viva Naturals Omega 3 Fish Oil Supplement for Women and Men - 2500 mg Triple… at #4. Overall it ranks #144 of 3,452 brands.

8. Dr. Tobias

~$525K/mo est. revenue (3% of this list) and ~13.1K units/mo from 1 product; best position #8. Its highest-ranked product here is Dr. Tobias Omega 3 Fish Oil 2000mg Triple Strength | 180 Softgels | Heart… at #8. Overall it ranks #318 of 3,452 brands.

9. Wiley's

~$442K/mo est. revenue (3% of this list) and ~10.9K units/mo from 2 products; best position #27. Its highest-ranked product here is Wiley's Finest Wild Alaskan Easy Swallow Minis, 120 Count (Pack of 1) | Wild… at #27. Overall it ranks #897 of 3,452 brands.

10. GNC

~$423K/mo est. revenue (3% of this list) and ~8.8K units/mo from 2 products; best position #30. Its highest-ranked product here is GNC Triple Strength Fish Oil Mini, 1000mg EPA & DHA, 240 Mini Softgels… at #30. Overall it ranks #36 of 3,452 brands.

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