Re: Food-frequency questionnaire for assessing long-chain ω-3 fatty-acid intake.

To the Editor: I agree with Kuratko that there is a need for tailored food frequency questionnaires (FFQ), particularly for nutrients that have limited food sources, such as long chain ω-3 polyunsaturated fatty acids (LC ω-3 PUFA). Fish are the best food source of LC ω-3 PUFA, and oily fish such as sardines and Atlantic salmon contain approximately 10 times more LC ω-3 PUFA than lean fish, such as fish cakes/patties. Fish oil supplements are also a rich source of LC ω-3 PUFA, but in Australia they only contribute approximately 8% to total LC ω-3 PUFA intake [1]. Other foods, such as meat and eggs also contain LC ω-3 PUFA, as well as LC ω-3 PUFA-enriched foods such as bread, milk, and yogurt [1].