This study was published in the Journal of Alzheimers Disease 2012;32(2):329-39
Study title and authors:
Relative intake of macronutrients impacts risk of mild cognitive impairment or dementia.
Roberts RO, Roberts LA, Geda YE, Cha RH, Pankratz VS, O'Connor HM, Knopman DS, Petersen RC.
Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA. roberts.rosebud@mayo.edu
This study can be accessed at: http://www.ncbi.nlm.nih.gov/pubmed/22810099
The objective of the study was to investigate the association between fat, protein & carbohydrate intake and mild cognitive impairment or dementia. The study lasted for 3.7 years and included 937 elderly people, average age 79.5 years, who had normal cognition at the start of the study.
The study found:
(a) Those who consumed the most fat had a 44% reduced risk of mild cognitive impairment or dementia.
(b) Those who consumed the most protein had a 21% reduced risk of mild cognitive impairment or dementia.
(c) Those who consumed the most carbohydrate had a 89% increased risk of mild cognitive impairment or dementia.
The study reveals that a high-fat diet reduces the risk of mild cognitive impairment or dementia.
