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Learning objective

Identify the main dietary sources and explain the significance of: (a) carbohydrates (b) fats and oils (c) proteins (d) vitamins, specifically C and D (e) mineral ions, specifically calcium and iron (f) fibre (roughage) (g) water.

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  • Practise with linked questions.
Cambridge IGCSE Combined ScienceHuman nutritionCore content

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Quick explanation

Identify the main dietary sources and explain the significance of: (a) carbohydrates (b) fats and oils (c) proteins (d) vitamins, specifically C and D (e) mineral ions, specifically calcium and iron (f) fibre (roughage) (g) water

  • This point belongs to Diet, especially Diet outcomes.
  • You need to be able to identify the main dietary sources and explain the significance of: (a) carbohydrates (b) fats and oils (c) proteins (d) vitamins, specifically C and D (e) mineral ions, specifically calcium and iron (f) fibre (roughage) (g) water.
  • The key ideas to know are State and Describe.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

StateDescribe

Why it matters

This objective helps connect Diet outcomes to exam-style questions, flashcards, and revision notes for Diet.

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Paper 3 structured question: Diet

Paper 3Theory (Core)2 marks

Description

Nutritional Components

A balanced diet includes carbohydrates, proteins, fats, vitamins, minerals, fibre, and water. Each component plays a vital role in maintaining health.

  1. a

    Explain the significance of proteins in the diet.

    Aim for approximately 2 distinct marking points.

    [2]
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Cambridge IGCSECombined Science resources