In today's health matters, it's the world's first "fat tax." People in Denmark will now pay more for fatty foods. Shelves stripped bare of butter, margarine and cream.

As Danes stocked up on their favorite fatty foods ahead of a fat tax that went into effect recently. Foods containing more than 2.3 percent of saturated fat now cost more in Denmark.

A small package of butter about 50 cents more, half a kilo of cheese, about 40 cents extra. And a bag of potato chips cost 12 cents more.

Danish research shows that excessive consumption of saturated fats causes about four percent of the nation's premature deaths.

This is the world's first fat tax and scientists can't wait to find out if paying more for fatty foods will actually curb people's appetite for them.