Highlights
- Fish oil supplements during pregnancy lowers the risk of asthma in the baby.
- Until the children turned five,they had a reduced risk of developing other respiratory tract infections such as bronchitis and pneumonia.
- The supplements had 20 times more omega-3 fatty acids than the normal daily intake.
For the study the researchers gave about 700 mums either daily capsules containing 2.4g of two types of omega-3 fatty acids found in fish oil - 10 times the normal daily intake in Denmark and 20 times that in most other countries - or placebo capsules of olive oil.
The women began taking the capsules when they were 24 weeks pregnant and until their babies were a week old. The children were regularly monitored for any signs of wheezing, asthma, lower respiratory tract infections and skin conditions until they were five.
Among the children whose mothers took the fish oil supplements, 17 percent developed a persistent wheeze or asthma by the time they turned five compared with 24 percent whose mums had the alternative capsules.
The researchers said the results equated to a 30 percent relative reduction in the risk of developing asthma for children whose mums took the fish oil. The effects were strongest among children whose mums had had low levels of omega-3 fatty acids before they started taking the fish oil supplements.
The researchers noted that the incidence of asthma and wheezing disorders has more than doubled in western countries in recent decades. One in 10 Australians are estimated to have asthma and most children with the long-term lung condition have symptoms before their fifth birthday.
Source-Medindia