Scientists have found ways to drastically reduce the risk of developing peanut allergy in children
Parents should introduce their children to peanut products as early as four months of age to prevent allergies, experts say.
The number of people suffering from allergic reactions to peanuts has tripled in recent decades, and in severe cases, the consequences can be fatal.
Approximately one in 50 children is currently affected, leading to lifelong anxiety about the ingredients in their food.
But British researchers found a “window of opportunity” between four and six months of age, which they say is the best time to introduce children to peanuts.
It could reduce cases of peanut allergy by as much as 77 percent, they said.

Experts found that introducing peanut products to babies at four and six months of age reduced the incidence of peanut allergy later in life by 77 percent (stock image).
A team of scientists from King’s College London and the University of Southampton said most cases of peanut allergy have already developed by the time a child is one year old.
They reviewed data from the Tolerance Study (EAT) and the Peanut Allergy Early Study (LEAP).
The Leap study included 640 children at high risk of developing peanut allergy and examined the early introduction of peanut products.
The Eat project has recruited over 1,300 three-month-old babies in England and Wales. They were followed for several years to investigate the early introduction of six allergenic foods – milk, peanuts, sesame, fish, eggs and wheat.
An analysis published in the Journal of Allergy and Clinical Immunology found that it is best to introduce children to peanut products at four to six months of age.
It can reduce the incidence of peanut allergy by 77 percent compared to 33 percent when given to a one-year-old child.
They added that children at higher risk of developing allergies — for example, if they already have eczema — should start closer to four months.
The NHS currently says that nuts and peanuts can be introduced from six months of age if they are crushed, ground, or as a smooth nut or peanut butter.
Based on their findings, the scientists are urging the government to consider the latest evidence.
Lead author Professor Graham Roberts said: “Existing recommendations suggest that peanuts should be introduced from about six months of age.
“The latest government report on the introduction of food into infant diets was published in 2018. Since then, a number of studies have been published that suggest that introducing peanuts and other foods earlier may help prevent allergies from developing.
“We believe the government should review the current guidance on when to introduce peanuts to infants. In our opinion, peanuts should be introduced earlier if infants are developmentally ready for solid foods.”
He explained that a peanut allergy occurs when the body mistakes peanuts for something dangerous and reacts to them.
“The reaction can be all over your body — your lips can swell, you can get an itchy rash, and you can have trouble breathing,” he said.
The child’s immune system must learn to distinguish food from dangerous microbes that need to be kept out of the body.
“The body does this through the form in which it sees things. If he sees peanuts in large enough quantities in his intestines, he will consider them safe food and he will not develop an allergy.”
Children’s nutritionist Mary Feeney at King’s College London said their findings suggest giving children a heaping teaspoon of peanut butter three times a week to reduce the chance of them developing an allergy to it.
She warned that infants or preschool children should never be given whole or chopped nuts, as they carry a risk of choking.
She added that children should be prepared to transition to solid foods when peanut products are introduced.
Professor Gideon Lack of King’s College London and the Guy and St. Thomas NHS Foundation Trust said: “The benefits of including peanut products in children’s diets decrease as they get older.
“This reflects the experience of Israel, a culture where peanut products are commonly introduced early in the diet of infants and peanut allergy is rare.
“There is a narrow window of opportunity for preventing the development of allergies.
“Introducing peanut products between four and six months of age can significantly reduce the number of children who develop peanut allergies.”