Omega 3 fatty acids and cardiovascular disease
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《英国医生杂志》
EDITOR—In their review of omega 3 fatty acids and cardiovascular disease Din et al ignored the plant derived omega 3 fatty acids beyond the initial definitions.1
In figure 3 they say that the omega 3 fatty acids from fish oils are metabolites of linolenic acid (the plant derived source of omega 3 fatty acids). However, they did not say whether linolenic acid is as effective as oily fish in the beneficial effects described. Is this because no trials exist or trials show less effect?
Din et al comment on concerns about depleting fish stocks and environmental contamination of certain fish. Would suggesting a trial of linolenic acid supplements or a diet rich in the plant sources of this oil be an option for future research as well as their proposed trial of fish oil supplements?
Olga N Garrard, consultant in child and adolescent psychiatry
Canada House, Gillingham ME7 4JL olga.garrard@icc.wkentmht.nhs.uk
Competing interests: None declared.
References
Din JN, Newby DE, Flapan AD. Omega 3 fatty acids and cardiovascular disease—fishing for a natural treatment. BMJ 2003;328: 30-5. (3 January.)
In figure 3 they say that the omega 3 fatty acids from fish oils are metabolites of linolenic acid (the plant derived source of omega 3 fatty acids). However, they did not say whether linolenic acid is as effective as oily fish in the beneficial effects described. Is this because no trials exist or trials show less effect?
Din et al comment on concerns about depleting fish stocks and environmental contamination of certain fish. Would suggesting a trial of linolenic acid supplements or a diet rich in the plant sources of this oil be an option for future research as well as their proposed trial of fish oil supplements?
Olga N Garrard, consultant in child and adolescent psychiatry
Canada House, Gillingham ME7 4JL olga.garrard@icc.wkentmht.nhs.uk
Competing interests: None declared.
References
Din JN, Newby DE, Flapan AD. Omega 3 fatty acids and cardiovascular disease—fishing for a natural treatment. BMJ 2003;328: 30-5. (3 January.)