1. Nationally representative data was collected on body mass index (BMI) from 1985 to 2004. The graph shows overweight and obesity patterns in adult males and females from seven countries.

(a) State which country has the lowest total percentage of overweight and obese adults.

(b) Distinguish between the levels of male obesity and female obesity.

(c) Compare the overweight and obesity patterns in Australia and Morocco.

(d) Suggest two possible reasons for the differences in BMI from the reported countries.


2. (a) List two natural food sources of vitamin D in human diets.



(b) Discuss how the risk of vitamin D deficiency from insufficient exposure to sunlight can be balanced against overexposure.


3. (a) In the past, food companies have promoted artificial milk over breastfeeding.Distinguish between the composition of artificial milk used for bottle-feeding babies and human milk.

(b) Explain the possible health consequences of a high fat diet.

(c) The recommended intake of vitamin C was determined by experiments involving humans and small mammals. Outline the role of animal testing in determining the recommended levels of vitamin C.




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