Fish oil supplements are among the most widely used sources of omega-3 fatty acids, particularly EPA and DHA. These essential fats play important roles in the body and are naturally found in oily fish such as salmon, sardines, mackerel and anchovies.
For people who do not regularly eat fish, supplements may provide another way to obtain omega-3s. However, not every fish oil supplement is the same.
Why Omega-3s Matter
EPA and DHA are involved in several important biological processes. They contribute to normal cell function and play roles in cardiovascular, brain and eye health.
The amount of EPA and DHA varies considerably between supplements, so consumers should look at the actual omega-3 content rather than simply choosing a product with a large “fish oil” number on the front of the package.
11 Types of Fish Oil Supplements to Consider
Rather than assuming that one product is best for everyone, these categories can help shoppers compare supplements.
1. Standard Fish Oil Capsules
These are among the most common options and usually contain a combination of EPA and DHA.
2. Concentrated Fish Oil
Concentrated formulas provide higher amounts of EPA and DHA in fewer capsules, which may be convenient for some users.
3. Enteric-Coated Fish Oil
These capsules are designed to dissolve further down the digestive tract and may be useful for people who experience fishy aftertaste or burps.
4. Triglyceride-Form Fish Oil
Some supplements provide omega-3s in triglyceride or re-esterified triglyceride forms. Consumers can compare the EPA and DHA amounts as well as the product’s quality testing.
5. Fish Oil With Higher EPA
Some formulations contain a greater proportion of EPA and may appeal to people specifically looking for this omega-3.
6. Fish Oil With Higher DHA
DHA-focused products may be useful for people seeking a supplement with a greater proportion of DHA.
7. Liquid Fish Oil
Liquid products can be useful for people who have difficulty swallowing capsules. They also allow users to adjust the serving size.
8. Flavoured Fish Oil
Flavoured varieties can make liquid supplements easier to consume by reducing the natural fishy taste.
9. Sustainably Sourced Fish Oil
Consumers concerned about environmental impact can look for products that provide information about responsible sourcing and fisheries.
10. Third-Party Tested Fish Oil
Independent testing can help verify product quality, purity and the accuracy of labelled contents.
11. Small-Fish-Based Omega-3 Supplements
Products made from smaller fish such as anchovies and sardines are another option. These fish are commonly used as sources of omega-3 oil.
What Should You Look For?
Before buying a supplement, check the label for the amount of EPA and DHA per serving. Also consider whether the product has been independently tested for contaminants and oxidation.
Storage is important too. Fish oil can oxidise when exposed to heat, light and air, so follow the manufacturer’s storage instructions.
Who Should Be Careful?
Fish oil supplements can interact with some medicines, particularly certain blood-thinning medications. People with medical conditions or those taking prescription drugs should speak with a healthcare professional before starting a supplement.
Supplements should not be considered a replacement for a balanced diet rich in fish, vegetables, fruits, whole grains and other nutritious foods.
Bottom Line
The best fish oil supplement depends on individual dietary needs, EPA/DHA content, product quality and tolerance. Comparing labels carefully and choosing independently tested products can help consumers make a more informed decision.
