Healthy midlife diet may prevent dementia laterHealthy dietary choices in midlife may prevent dementia in later years according a doctoral thesis published at the University of Eastern Finland. The results showed that those who ate the healthiest diet at the average age of 50 had an almost 90 per cent lower risk of dementia in a 14-year follow-up study than those whose diet was the least healthy. The study was the first in the world to investigate the relationship between a healthy diet as early as in midlife and the risk of developing dementia later on.The researchers assessed the link between diet and dementia using a healthy diet index based on the consumption of a variety of foods. Vegetables berries and fruits fish and unsaturated fats from milk products and spreads were some of the healthy components whereas sausages eggs sweets sugary drinks salty fish and saturated fats from milk products and spreads were indicated as unhealthy.Previous studies on diet and dementia have mainly focused on the impact of single dietary components. But nobody's diet is based on one single food and there may be interactions between nutrients so it makes more sense to look at the entire dietary pattern says Ms Marjo Eskelinen MSc who presented the results in her doctoral thesis in the field of neurology.Higher intake of saturated fats linked to poorer cognitive functions and increased risk of dementiaThe impact of dietary fats on cognitive performance and the risk of dementia was studied separately as well. A high intake of saturated fats was linked to poorer cognitive and memory functions and to an increased risk of mild cognitive impairment in a 21-year follow-up. It was also shown that a higher saturated fat intake was associated with an increased risk of dementia among those carrying a genetic risk factor of Alzheimer's disease the epsilon 4 variant of the apolipoprotein E (ApoE) gene. Even those who are genetically susceptible can at least delay the onset of the disease by favouring vegetable oils oil-based spreads and fatty fish in their diet Ms Eskelinen says.In addition those consuming 3 to 5 cups of coffee daily had a smaller risk of dementia than those consuming less or more.Story Source:The above story is based on materials provided by University of Eastern Finland. Note: Materials may be edited for content and length.