The glycemic index is a listing of foods and what their impact is on blood glucose response. How is a food's glycemic index determined?
A) A comparison is made between the blood glucose response caused by 25 g of pure glucose and 25 g of a food sample.
B) Serial blood glucose levels are drawn after eating 25 g of a food sample and compared to a chart on blood glucose levels after eating 25 g of sucrose.
C) Serial blood glucose levels are drawn after eating 50 g of pure sucrose and compared to blood glucose levels after eating 50 g of a food sample.
D) A comparison is made between the blood glucose response caused by 50 g of pure glucose and 50 g of a food sample.
D
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To more accurately assess a food's impact on blood glucose response, the concept of glycemic index was developed. A food's glycemic index is determined by comparing the impact on blood glucose after 50 g of a food sample is eaten compared to the impact of 50 g of pure glucose or white bread.
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