Section A: Nutrition covers the relationship between diet and health, nutritional needs across different life stages, energy balance, the roles and sources
Topic Synopsis
Section A: Nutrition covers the relationship between diet and health, nutritional needs across different life stages, energy balance, the roles and sources of macronutrients (protein, fat, carbohydrates) and micronutrients (vitamins, minerals), the importance of water, and the nutritional content of major commodity groups.
Key Concepts & Core Principles
- Food provenance: the origin, production, and journey of food from farm to fork, including primary and secondary processing.
- Food miles: the distance food travels from producer to consumer; high food miles increase carbon footprint.
- Seasonality: eating foods when they are naturally in season in the UK reduces environmental impact and often improves flavour and nutritional value.
- Factors affecting food choice: cultural, religious, ethical, health, economic, and social influences, including food availability and marketing.
- Sustainability: producing and consuming food in ways that protect the environment, support local economies, and ensure food security for future generations.
Exam Tips & Revision Strategies
- Use scientific terminology when describing nutrient functions and deficiency symptoms.
- Ensure you can apply nutritional knowledge to specific scenarios, such as modifying a recipe for a specific dietary group.
- Practice calculating energy values using kcal and kJ.
- Be prepared to interpret nutritional data and apply it to meal planning.
Common Misconceptions & Mistakes to Avoid
- Confusing High Biological Value (HBV) and Low Biological Value (LBV) protein sources.
- Inaccurate calculation of energy values or nutritional data.
- Failing to link nutritional theory to practical recipe modification.
- Misunderstanding the difference between BMR and PAL in energy balance calculations.
Examiner Marking Points
- Understanding of the relationship between diet and health including major diet-related diseases.
- Ability to plan balanced meals for different life stages and dietary needs.
- Knowledge of Dietary Reference Values (DRVs) and nutritional analysis.
- Understanding of energy balance (BMR and PAL) and factors influencing energy requirements.
- Knowledge of the functions, types, and sources of macronutrients and micronutrients.
- Ability to modify recipes to meet dietary guidelines.