TRIK JITU MENGERJAKAN SOAL TOEFL(READING 3)
The history of clinical nutrition ,or the study of the relationship between health and how the body takes in and utilizes food substances,can be divided into four distinct line eras:the first began in the nineteenth century and extended into the early twentieth century when it was recognized for the first time that food contained constituents that were essential for human function and that different foods provided different amounts of these essential agents.Near the end of this era,research studues demonstrated that rapid (10) weight loss was assosiated with nitrogen imbalance and could only be rectified by providing adequate dietary protein associated with certain foods. The second era was initiated in the early decades of the twentieth century and might be called"the vit
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