Women who eat too little during pregnancy increase the risk of their children becoming obese in later life, experts have warned.

Researchers have discovered eating too few calories while pregnant changes the way that a baby's fat cells behave once they are born.

A new study by Dr Helen Budge, from the centre of reproduction and early life at Nottingham University, found that the fat cells in lambs, which received too few calories while in the womb, produce excessive levels of inflammation.