4 2
In 1953, a famous scientist called Ancel Keys investigated the cause of heart disease.
He noticed that the number of deaths from heart disease varied in different countries. He wondered if it was to do with diet. So he gathered some data from different countries and plotted this graph. 8 USA
7 6 number of deaths from heart disease per 1000 people 5 in the population 4
Australia
Canada
England & Wales
3 2
Italy
1 Japan 0 0
Š OCR 2012
10 20 30 40 50 percentage of the energy in the diet that comes from all types of fat