Fish oil guides, brand by brand

Last reviewed July 2026.

Every brand we track, plus the general method guides. Value pages rank a brand on cost per gram of lab-measured EPA+DHA; testing pages check whether its certificate is public.

Cost per gram, by brand

• California Gold Nutrition fish oil — cost per gram & is it worth it
• Carlson fish oil — cost per gram & is it worth it
• Life Extension fish oil — cost per gram & is it worth it
• Sports Research fish oil — cost per gram & is it worth it
• Wiley S Finest fish oil — cost per gram & is it worth it

Is it third-party tested? by brand

• Is California Gold Nutrition third-party tested?
• Is Carlson third-party tested?
• Is Life Extension third-party tested?
• Is Solaray third-party tested?
• Is Solgar third-party tested?
• Is Sports Research third-party tested?
• Is Wiley S Finest third-party tested?

Method & background

• What is TOTOX (fish-oil freshness)?
• What does an IFOS 5-star rating mean?
• Third-party tested omega-3, explained

This page summarizes published third-party testing data and makes no health, benefit, or treatment claims. A certificate describes one tested batch, not a permanent grade.