United Nations Secretary General Ban Ki-moon has said the "UN will do everything in its power to overcome malnutrition."
He added: "We must empower women so they are well nourished before and during pregnancy so they can breast feed."
The UN chief was talking via video link at an international meeting in London with charities and companies, aimed at combating malnutrition in the developing world.
David Cameron is due to talk shortly.
More top news
The singer demanded a fan stop using a tripod during a live show and advised her to enjoy it "in real life".
Johnny Depp's band the Hollywood Vampires are due to play in Stockholm, Sweden, but face calls for the gig to be boycotted.
The launch of a medium-range missile took place around 5.20am Seoul time, off the country's east coast, an official said.