Are we going to eat more blueberries when celebrities say they do?

This is how we know that Mark Rutte eats blueberries every day. As well as celebrities like former Beatle Ringo Starr (over 80!) claim that blueberries keep him young and fit. But also a Kate Hudson and Miranda Kerroew their good conditio nto eating blueberries.

It turns out that we prefer to watch a commerical  with a well-known Dutch celebrity than unknown people. Many prefer to even identify with these people and try to do this by buying products that they also see these Dutch celebrities use.

It must be believable.

The results of a study into the effect of a celebrity in advertising showed that only 10% of the Dutch have more confidence in a commercial  if a celebrity is associated with it.