西里斯

纽约哥伦比亚大学医学中心（ColumbiaUniversityMedicalCenter）托尼•斯塔比尔骨质疏松研究中心（ToniStabileOsteoporosisCenter）主任西里斯（EthelSiris）说，问题变得令人非常费解，但其实不至于如此。

It 's gotten very confusing but it doesn 't need to be , says Ethel Siris , director of the Toni Stabile Osteoporosis Center at Columbia University Medical Center in New York .

西里斯博士和其他专家指出，可能引起心脏病和肾结石的是钙补充剂，而不是从食物中获取的钙。

The links to heart attack and kidney stones involved calcium supplements , not calcium from food sources , Dr. Siris and other experts note .

西里斯博士说，除非每天都能经口服摄入充足的钙，否则你不得不一直向骨骼借用钙，所以人一生中必须摄取足够的钙。

Unless you take in enough calcium , by mouth , every day , you have to keep borrowing it from your skeleton , so over your lifetime , you need to get enough , says Dr. Siris .