Dietary Timeline

To view a brief summary of the events from each period simply drag the mouse over the dates that are listed on the left.

To view more details click on the date link and you will be transferred to another page.

Click here to return to the timeline index page

Click here to return to the timeline intro page


1991

In 1991, two studies, from USA and Canada, found that linoleic acid, the major polyunsaturated fatty acid found in vegetable oils, increased the risk of breast tumours

Carroll K K. Dietary fats and cancer. Am J Clin Nutr 1991; 53: 1064S.

France T, Brown P. Test-tube cancers raise doubts over fats. New Scientist, 7 December 1991, p 12.