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Nutrition

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Question 13

A public health initiative is designing dietary guidelines tailored to different demographics within a population. The draft guidelines highlight the following points:

  • Restrict the intake of free sugars found in processed foods and sweetened beverages.
  • Maintain a high intake of non-starch polysaccharides (dietary fibre) from whole grains, legumes, and cruciferous vegetables.
  • Ensure adequate micronutrient intake, focusing on key minerals such as calcium and iron.
  • Adjust macronutrient ratios and total energy intake to match specific lifestyle demands.
a.

Explain the physiological health risks associated with the long-term consumption of diets high in free/refined sugars.

[2]
b.

Explain the biological role of dietary fibre in maintaining healthy digestive function and transit.

[2]
c.

Explain why pregnant women require a significantly higher intake of both calcium and iron in their daily diet compared to non-pregnant adults.

[2]
d.

Contrast the nutritional requirements (energy and protein) of an elite endurance athlete with those of an individual recovering on prolonged bed rest.

[2]

Nutrition Questions

  1. IGCSE
  2. /Biology
  3. /Nutrition