GRE作文新增的argument题目(1)_GRE写作

GRE作文新增的argument题目(1)

　　milk and dairy products are rich in vitamin d and calcium, substances essential for building and maintaining bones. many people therefore believe that a diet rich in dairy products can help prevent osteoporosis, a disease in which the bones weaken significantly with age and that is linked to both environmental and genetic factors. but a long-term study of a large number of people has found that those who have consistently consumed dairy products throughout the years of the study have a higher rate of bone fractures than any other participants in the study. since bone fractures are a symptom of osteoporosis, this study result shows that a diet rich in dairy products may actually increase, rather than decrease, the risk of osteoporosis.

　　the following appeared in the summary of a study on headaches suffered by the residents of mentia.

　　salicylates are members of the same chemical family as aspirin, a medicine used to treat headaches. although many foods are naturally rich in salicylates, for the past several decades food-processing companies have also been adding salicylates to foods as preservatives. this rise in the commercial use of salicylates has been found to correlate with a steady decline in the average number of headaches reported by participants in our twenty-year study. recently, food-processing companies have found that salicylates can also be used as flavor additives for foods. with this new use for salicylates, we can expect a continued steady decline in the number of headaches suffered by the average citizen of mentia.