Best Cod Liver Oil Supplements 2026: Cost per Effective Dose
Top pick for Cod Liver Oil: NOW Foods Cod Liver Oil, 650mg, 250 Softgels — 650mg cod liver oil (softgel size) per 1 softgel, None claimed, $0.05/day.
All Cod Liver Oil Supplements Compared
| Product | Brand | Dose / Serving | Cost / Day | Certification (as labelled) | Pick | Buy |
|---|---|---|---|---|---|---|
| NOW Foods Cod Liver Oil, 650mg, 250 Softgels | NOW Foods | 650mg cod liver oil (softgel size) / 1 softgel | $0.05 | None claimed | Buy | |
| NOW Foods Cod Liver Oil Extra Strength, 1,000mg, 180 Softgels | NOW Foods | 1,000mg cod liver oil (softgel size) / 1 softgel | $0.10 | None claimed | Buy | |
| Nordic Naturals Arctic Cod Liver Oil, Lemon, 180 Softgels | Nordic Naturals | 750mg total omega-3 (EPA+DHA) / 2 softgels | $0.47 | None claimed | Buy | |
| Carlson Norwegian Cod Liver Oil, Lemon, 500mL | Carlson | 1,100mg total omega-3 (EPA+DHA) / 1 tsp (5mL) | $0.72 | None claimed | Buy |
Registry check · Cod Liver Oil
Does anyone independently verify Cod Liver Oil supplements?
We did not find any of these products in a public registry, and none of the listings names a certification mark. Where a listing names a mark, we say so in the table; where we could not find it in a registry, we say that instead.
The 4 products on this page checked against all 5,317 US NSF, USP and Informed Sport listings, 2026-08-25. Full method and limitations.
What Cod Liver Oil labels show
Priced per day, these cod liver oil products run $0.05 to $0.72 — a 14× gap between the cheapest and dearest cod liver oil here, across 3 brands.
Which row that favours is not obvious: NOW Foods NOW Foods Cod Liver Oil, 650mg, 250 Softgels is cheapest per serving at $0.05, but its serving sits below the median here, so part of that price gap is simply a smaller capsule.
In-Depth Cod Liver Oil Guides
Go deeper on cod liver oil — by goal, by form, and what the evidence actually supports:
Our Picks
Lowest Cost: NOW Foods Cod Liver Oil, 650mg, 250 Softgels
650mg cod liver oil (softgel size) per 1 softgel. None claimed. $0.05/day. 250 servings per container at $10.94.
The shelf · Cod Liver Oil
A Cod Liver Oil day costs 14.4× more at one end of this table than the other
NOW Foods Cod Liver Oil, 650mg, 250 Softgels is the cheapest day on this page at $0.05 and Carlson Norwegian Cod Liver Oil, Lemon, 500mL the priciest at $0.72. The servings are not the same size, so check what each one calls a serving before you compare the two prices.
Method: the 4 Cod Liver Oil products above, compared on label facts, serving size, servings per container, form, price. Not a dosing recommendation.
How these 4 Cod Liver Oil products were ranked
Not one of these 4 cod liver oil products could be confirmed in the NSF, USP or Informed Sport registries, so verification separates none of them and the ranking falls to cost per day at the labelled serving. Commission does not enter it: the rate is the same whichever cod liver oil you buy. Full methodology.