Foods in the everyday diet
Compare the food groups named in the syllabus by their sources, nutrient contributions, storage and role in varied meal planning.
Section 5 · Foods in the everyday diet
Exam scope and assessment notes
This original StudyForA lesson maps Cambridge IGCSE Food & Nutrition 0648 topic 5 for examinations in 2026–2029. These are not Cambridge questions, mark schemes or official grades. The practical examination is a real, centre-administered cooking test with a planning session and assessed preparation, time management, results and quality. These screen-based lessons can teach the theory and help rehearse planning and evaluation, but they cannot provide a kitchen, verify safe food handling or practical skill, replace teacher-supervised cooking, award the practical mark, or guarantee an exam grade. Follow your centre’s instructions, local food-safety rules, medical advice and emergency procedures. Any meal examples are for syllabus practice, not individual dietary or medical advice.
Before you begin
Work on paper. Try each question before revealing help, and explain why your method works.
Quick readiness check
Before you start: Why is it useful to classify foods by source?
What you will learn
- Classify common foods by source
- Compare what protein foods and cereals contribute
- Explain the value of fruit, vegetables, pulses, nuts, fats and oils
- Use food-group evidence without assuming a food has only one nutrient
Protein foods and cereals
Dairy products, eggs, fish, meat and soya are protein sources; they differ in fat, micronutrients, cost, storage and suitability. Animal sources often provide high-biological-value protein, while soya is a useful plant protein. Pulses and nuts also contribute protein. A food can fit several groups, and portion size affects the nutrients supplied.
Maize, millets, oats, rice and wheat are cereals. They commonly provide carbohydrate for energy; wholegrain forms may contribute more NSP and some micronutrients than refined forms. Processing, fortification and preparation change the nutritional profile. Compare like portions and use label or food-composition data when a numerical comparison is requested.
Fruit, vegetables, pulses, nuts, fats and oils
Fruit and vegetables provide water and a range of vitamins, minerals and dietary fibre; the exact nutrient contribution differs by type and preparation. Pulses are seeds such as beans, lentils and peas, and can provide protein, carbohydrate and fibre. Nuts can contribute protein, fats, fibre and micronutrients and are also a significant allergen for some people.
Fats and oils are concentrated energy sources and support flavour and texture in cooking. They can be visible, such as cooking oil, or present within foods. Choices for a recipe depend on function, heat, cost, availability, taste and dietary requirements; do not assume all fats behave identically or that a single food group makes a complete diet.
Sources for this lesson
Pause and explain
Which statement about lentils is most accurate?
Worked example
A menu contains rice, lentils, vegetables and a small amount of oil. Explain how it combines several food sources and identify two checks before calling it balanced.
Show the worked solution
- Rice is a cereal and a carbohydrate source; lentils are pulses and provide protein and fibre.
- Vegetables add a range of micronutrients and fibre; oil provides fat and energy.
- Check portions, the full day’s diet and people’s needs before claiming balance.
Answer The menu combines cereal, pulses, vegetables and oil, which contribute different nutrients. Balance cannot be judged from food names alone: portions, the rest of the diet, needs and any restrictions must also be considered.
Try a topic test
Choose Easy, Normal or Difficult. Save your answers and open worked review after finishing.
Test this topic →From guided practice to a new situation
Write your answer and reasoning first. Use a hint only if you are stuck. The model solution is for self-checking; your written work is not automatically marked.
Compare rice and lentils as meal ingredients, naming their main food groups and one way their contributions differ.
Give me a hint
Classify each food and mention more than one nutrient where appropriate.
Compare my reasoning
- Classify rice as a cereal and identify carbohydrate as a main contribution.
- Classify lentils as pulses and identify protein and fibre among their contributions.
- Avoid saying either food contains only one nutrient.
Rice is a cereal and is mainly a carbohydrate source. Lentils are pulses and can supply protein, carbohydrate and fibre. Both foods contain mixtures of nutrients, and their precise contributions depend on variety, processing and portion size.
Look for these in your work
- Classifies both foods
- Compares main contributions
- Qualifies the comparison
A recipe uses nuts to add texture. What nutritional contribution might they make, and what important planning issue must be checked?
Give me a hint
Consider protein, fats and fibre as well as allergy risk.
Compare my reasoning
- Name plausible nutrients supplied by nuts.
- Check whether anyone eating the food has a nut allergy.
- Use reliable ingredient and cross-contact information.
Nuts can contribute protein, fats, fibre and micronutrients, but their composition varies. They are also a serious allergen for some people, so the planner must confirm requirements and prevent cross-contact where needed.
Look for these in your work
- Names plausible nutrients
- Recognises allergen risk
- Checks ingredients and handling
A shopper compares two cereal products using package labels. Describe a fair comparison and one reason the result may not tell the whole story.
Give me a hint
Use matching serving quantities or per-100 g values, then consider the rest of the diet and product context.
Compare my reasoning
- Compare values using the same mass or serving basis.
- Check ingredients, fortification and preparation instructions.
- Explain that one label comparison does not assess the whole diet.
Compare the products per 100 g or for realistic equal servings, checking nutrient units and whether values refer to the food as sold or prepared. Fortification and recipe context may differ, and the result says nothing by itself about the person’s whole diet or needs.
Look for these in your work
- Uses a consistent basis
- Checks product details
- States what the comparison cannot show
Common mistakes
- Treating food groups as mutually exclusive
- Assuming every fruit or cereal has the same nutrient profile
- Ignoring allergies or storage needs when selecting foods
What can you explain now?
Which statement about lentils is most accurate?
Compare with the explanation
They are pulses and can provide protein, carbohydrate and fibre
Use the syllabus concept, connect it to the stated evidence or needs, and explain any limit on your conclusion.
After trying it yourself, choose your next review. This is your self-assessment.
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Make it stick
How can two foods in different groups contribute to the same meal in different ways?
If you needed the solution, close it and solve the problem again from a blank page. A correct answer is stronger when you can explain the reason for each step.