Final answer:
Obesity is defined by the body mass index (BMI), which is a measure of an individual's weight-to-height ratio. The normal, or healthy, BMI range is between 18 and 24.9 kg/m². However, the proportion of overweight or obese individuals among Canadians cannot be determined from the given information.
Step-by-step explanation:
Obesity is defined by the body mass index (BMI), which is a measure of an individual's weight-to-height ratio. The normal, or healthy, BMI range is between 18 and 24.9 kg/m². Overweight is defined as a BMI of 25 to 29.9 kg/m², and obesity is considered to be a BMI greater than 30 kg/m². According to the U.S. Centers for Disease Control and Prevention, nearly 36 percent of adults over 20 years old in the United States were obese and an additional 33 percent were overweight in 2010. However, the information provided does not specify the proportion of overweight or obese individuals among Canadians. Therefore, the correct answer cannot be determined from the given information.