Quick answer: A fish oil label may show a large number on the front, but that number does not necessarily tell you how much EPA and DHA you receive. These are two important omega-3 fats. Read their amounts on the ingredients panel, check the serving size, and add them together before comparing products.
Two bottles can both say “1,000 mg fish oil” while supplying different amounts of EPA and DHA. The larger bottle, stronger wording or higher capsule count does not settle which one fits your needs. A few minutes with the label can make the purchase much clearer.
Anthony Ofori | Medical Graduate in General Medicine | Founder, WellNest Central
Last updated: 4 October 2026
Fish oil and EPA plus DHA are different numbers
Fish oil contains a mixture of fats. EPA and DHA are part of that mixture, so total fish oil weight is not the same as combined EPA and DHA. The NIH gives a typical example of 1,000 mg fish oil containing 180 mg EPA and 120 mg DHA. That adds up to 300 mg EPA plus DHA, not 1,000 mg. Products vary considerably.
WellNest Central support
Make sense of your supplement labels
Bring your products and your dietary goals. We can help you organise the information and prepare useful questions for your healthcare professional.
A three-step fish oil label check
- Find the serving size. Does the panel describe one softgel, two softgels or another amount?
- Find EPA and DHA separately. Add those two amounts. Keep the total fish oil amount in a separate column.
- Read the daily directions. One listed serving may differ from the manufacturer’s full daily directions.
For example, if a panel lists 700 mg EPA and 500 mg DHA per two softgels, that is 1,200 mg combined per listed serving. Dividing by two gives 600 mg per softgel. Taking two servings would double the amount again. This arithmetic explains the label; it does not establish the right dose for you.
Write the units down too. A gram is 1,000 milligrams. Comparing a number in grams with another in milligrams without converting can create an avoidable mistake.
Compare two real products
Affiliate disclosure: The links below are affiliate links. WellNest Central may earn a commission if you purchase through them, at no extra cost to you.
| Product | Current label information | What to check |
|---|---|---|
| Life Extension Super Omega-3, 60 softgels | Two softgels: 2,000 mg fish oil, providing 700 mg EPA and 500 mg DHA. | 1,200 mg EPA plus DHA per two-softgel serving; the page’s daily directions specify two softgels twice daily. |
| Body Attack Omega 3 Gold, 300 capsules | The product page states 550 mg combined EPA and DHA per capsule, with added vitamin E. | The page’s directions specify one capsule daily. Compare the amount per capsule with your agreed intake plan. |
These are options to compare, not a recommendation to take both. The Life Extension formula also contains olive extract and sesame lignans; check the full ingredients for dietary restrictions and allergies. A higher EPA-plus-DHA amount does not automatically make a product the better choice.
Labels and formulations can change. Confirm the current bottle details before ordering. Our supplement buying checklist covers other useful questions about ingredients and purpose.
Does a bigger dose give better results?
Not necessarily. Nutritional supplementation and treatment of a medical condition are different decisions. Prescription omega-3 medicines used for high triglycerides should not be replaced with an over-the-counter bottle based on similar wording. General supplements also cannot promise protection against heart attacks.
High-dose omega-3 use deserves professional review. Some trials using 4 g daily found an increased risk of atrial fibrillation in people with cardiovascular disease or high cardiovascular risk. Ask your clinician about suitability if you have a heart rhythm condition, take anticoagulants or antiplatelet medicines, or have a bleeding disorder. Do not alter prescribed medication to accommodate a supplement.
Keep food in the picture
The American Heart Association recommends two servings of fish weekly, particularly fatty fish. Salmon, sardines and herring are practical examples. A fish meal supplies protein and other nutrients as well as omega-3 fats.
If you rarely eat fish, discuss whether a supplement would help fill that dietary gap. Plant foods such as walnuts and flaxseed mainly provide ALA, another omega-3 fat; conversion to EPA and DHA is limited. People avoiding fish can compare algae-based products, checking which of EPA and DHA they actually contain.
Our omega-3 food and supplement guide explores that broader decision.
Compare value after you understand the serving
A useful shopping note has five entries: bottle price, capsule count, capsules per serving, EPA plus DHA per serving, and the intended daily use. A 60-softgel bottle lasts a different number of days at one softgel daily than at four. Include delivery charges when comparing costs.
Choose the amount that fits a clear purpose and a realistic budget. The best label is one you can understand, and the best routine is one you have a reason to follow.
WellNest Central support
Choose with a clear purpose
We can help you review your food habits, supplement labels and goals before your next discussion with a clinician or pharmacist.
This article provides general health education and does not replace individual medical advice, diagnosis or treatment.
