The committee is expected to say next week that avoiding peanuts during pregnancy could increase the risk of allergic reaction.
The claim goes against advice issued in 1998, which recommends that pregnant women should avoid peanuts if they, the baby's father or any of their existing children has an allergic reaction to food, asthma, eczema or hay fever.
A committee source told the Evening Standard that, following a study into allergies, "we feel it's time the government advice is changed".
"Evidence suggests that countries which expose young children to peanuts have much lower or non-existent cases of peanut allergy," the source revealed according to the Daily Telegraph.
A series of studies have shown that, while the number of childhood allergies in Britain has soared in recent years, nations that wean babies on peanuts have virtually non-existent rates of allergy.