Princess Charlotte and her brothers, Prince George and Prince Louis, are said to dine at the children's table on special occasions, like Christmas.
The royal children dine separately from adults and are supposed to do so until they reach adolescence.
Without the temptation of iPads, Kate Middleton and Prince William must rely on their children's excellent manners while dining away from them.
Former royal chef Darren McGrady, who served both Queen Elizabeth II and Princess Diana, stated that the nannies are in charge of shaping the young royals' taste buds.
McGrady described how, as youngsters, Prince William and Prince Harry were frequently enticed to eat vegetables or had greens artfully camouflaged in their favourite foods.
He told Harper's Bazaar that the royal children aren't permitted to sit with the grownups until they've "learned the art of polite conversation" - which can frequently take until they're adolescents.
He also said that Prince William and Harry had to make bargains before eating their greens.
He told Hello that the Royal Nursery was not just for training the young royals' heads, but also their palates. Nanny always had control over the menu and made sure they ate balanced meals that included not just plenty of healthful veggies but also exposed them to new grown-up cuisine."