Eating a diet high in processed(加工) food increases the risk of depression(抑郁), research suggests. What's more, people who ate plenty of vegetables, fruit and fish actually had a lower risk of depression, the University College London team found. Data on diet among 3,500 middle-aged civil servants were compared with their emotional state five years later, a British journal reported. They split the participants into two types of diet--those who ate a diet largely based on whole food,which includes lots of fruit, vegetables and fish,and those who ate a mainly processed food diet, such as sweetened desserts, fried food, processed meat,refined(精制的) grains and high fat dairy products After accounting for factors such as gender, age, education, physical activity, smoking habits and chronic(慢性的) diseases, they found a significant difference in the future depression risk with the different diets. Those who ate the most wholefood(全天然食物) had a 26% lower risk of future depression than those who ate the least wholefood. By contrast, people with a diet high in processed food had a 58% higher risk of depression than those who ate a diet low in processed foods. Study author Dr. Archana Singh Manoux pointed out there was a chance that the finding could be explained by lifestyle factor they had not accounted for.(解释原因) He also pointed in a paper that a Mediterranean(地中海) diet was associated(有关) with a lower risk of depression, but the problem with that is if you live in Britain, the likelihood (可能)of you eating a Mediterranean diet is not very high. Dr.Andrew McCulloeh, chief executive of the Mental Health Foundation, said, this study adds to an existing body of solid research that shows the strong links between what we eat and our mental health. He added people's diets were becoming increasingly unhealthy. The UK population is consuming (消费)less nutritious, fresh produce and more saturated(饱和) fats and sugars. 小题1:The text is mainly about______.
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