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Vitamin deficiencies linked to raised asthma risk

Deficiencies of certain vitamins are linked with an increased risk of asthma or wheeze, finds a meta-analysis of 40 studies.

The analysis from UK researchers looked at the association between dietary intake and serum levels of antioxidant vitamins A, C and E.

They found significantly lower levels of vitamin A in those with asthma, compared with those without, and a 12% increased risk of asthma in those with low dietary intakes of Vitamin C. Vitamin E intake did not appear to be related to asthma status.

Thorax 2009;

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