The royal warrant should be used more selectively on products high in fat, salt and sugar, the Food Commission has said.

The warrant, which can be displayed on products used by the royal family, is used on sugar, chocolate, and fizzy drinks, despite high profile campaigns encouraging people to eat fewer sugar foods, the Daily Telegraph reported.

“Royal patronage can be a valuable marketing tool for those companies which are lucky enough to get it,” the Food Commission said.

“Although foods and drinks with poor nutritional profiles are an inevitable part of our everyday diet, it is questionable whether the Queen should be granting her warrant, and the status associated with royalty, to such products.”