ALA is a shorter omega-3 fatty acid than EPA and DHA. The body can convert a small part of ALA into EPA and even less into DHA.
Plant sources are good for the rest of the diet, but they do not replace oily fish as a source of EPA and DHA.
Sources
- [source pending] Source needed: Norwegian dietary guidance on fatty fish and food sources of omega-3 (Helsedirektoratet)