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PARIS - Women who follow the famous Mediterranean diet while pregnant may also be shielding their baby from childhood asthma and allergy, a study published on Tuesday says.
Doctors recruited 507 women who attended an antenatal clinic on the Mediterranean island of Menorca in 1997, and quizzed them at length about their dietary habits.
More than six years later, they examined the women's children for asthma and wheezing and carried out a skin-prick test to see if the youngsters had a response to six common allergens.
The investigation found that the children's dietary intake at this age appeared to have little impact on whether they had these problems.
What made a difference, though, was what their mothers had eaten while pregnant.
One third of the mums-to-be had a low rating on the Mediterranean Diet Score, a measurement of consumption of fruits and vegetables, olive oil, fish, wholegrain cereals, legumes and nuts. Two-thirds had a high score.
Children from the "low score" group were between three and four times likelier to develop asthmatic symptoms than counterparts from the "high score" group, and almost twice as likely to develop allergies.
Consumption of vegetables more than eight times a week, fish more than three times a week, and beans or peas more than once a week seemed to be especially protective.
But consumption of red meat more than three or four times a week seemed to boost the risks.
The paper, published in the specialist British journal Thorax, points to two key components of the Mediterranean diet: antioxidants -- vitamin compounds that mop up damaging molecules called free radicals -- and polyunsaturated fatty acids, typically found in olive oil and fish oil.
Antioxidants are known to have a protective effect against asthma in young children, while the fatty acids shield against inflammation, a key factor in the complex problem of asthma, say the authors.
The Mediterranean diet, which is also associated with longevity, also incorporates moderate amounts of red wine.
Alcohol consumption is prohibited in pregnancy and was not included in the study.
The research was headed by Leda Chatzi, a doctor at the Department of Social Medicine at the University of Crete, Greece. - AFP/ar
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