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Long-term intake of vegetables and fruits and subjective cognitive function in US men
The aim of this 2019 study was to inspect the prospective relationship between long-term fruit and vegetable consumption with late-life subjective cognitive function (SCF). The number of participants totalled 27,842 men (average age 51) in 1986, who were examined on dietary intake through repeated food frequency questionnaires (5) collected every 4 years until 2002. SCF score was evaluated twice in 2008 and 2012 using a 6-item questionnaire and the mean score of the 2 tests were used to categorize scores as good, moderate, and poor SCF. After controlling for major non-dietary factors and total energy intake in the multinomial logistic regression analysis, several significant associations were revealed between higher consumptions of vegetables, fruits, and fruit juice, with reduced risk of having moderate or poor SCF, although the total fruit intake interaction was weakened by adjusting for major dietary factors. When this additional adjustment was made, the top quintile for vegetable intake was 17% and 34% less likely to have moderate (OR=0.83, p<0.001) and poor (OR=0.66, p<0.001) SCFs, respectively, compared with the bottom quintile. Those subjects that drank orange juice daily had lower odds of scoring poor on SCF (OR=0.53, p<0.001) relative to those individuals who drink <1 serving per month. Furthermore, the greater consumption of fruits and vegetables 18-22 years before SCF assessment were less likely to show low SCF, regardless of more recent intake. The data suggests a long-term beneficial impact of vegetable, fruit, and orange juice consumption on SCF. [NPID: cognition, FV intake, fruit, vegetables, late-life, elderly, cognitive function]
Year: 2019
