But because the research on the overall benefits of omega-3s is so conflicting, it’s hard to know whether these supplements are necessary for vegans. While we are not convinced that they are, we’re also not convinced that the lower blood levels of DHA and EPA in vegans is unimportant. Until we know more, supplementing with very small amounts, around 200 to 300 milligrams of DHA every two or three days is a reasonable approach for those vegans who wish to err on the side of caution.
