Scientists believe that omega 3 fatty acids passed on via the placenta affect the unborn baby’s immune system which protects against eczema.
The British Medical Journal has called for more research to see if fish oils protect against asthma and hay fever.
The current government recommendations are for pregnant women not to eat more than four portions of fish a week as high levels of mercury can be dangerous to the baby.
Scientists are advising that taking fish oils during pregnancy could protect your unborn baby from eczema. Tests done have shown that children whose mothers took omega 3 were three times less likely to develop the condition.