FN3: The Balanced Diet & Eatwell Guide
The Eatwell Guide, dietary reference values, the concept of a balanced diet, and how to apply nutritional knowledge to meal planning.
The Balanced Diet & Eatwell Guide
The Eatwell Guide, dietary reference values, the concept of a balanced diet, and how to apply nutritional knowledge to meal planning.
Key Fact: The Eatwell Guide (2016) divides food into five groups: fruit and vegetables (at least 5-a-day), starchy carbohydrates (base of each meal), dairy and alternatives (moderate amounts), proteins (beans, pulses, fish, eggs, meat), and oils and spreads (small amounts).
Key Fact: The Eatwell Guide applies to the overall diet, not individual meals. It shows the proportions of each food group that should be consumed over a day or week.
Key Fact: Dietary Reference Values (DRVs) are estimates of the energy and nutrient requirements for different population groups. They include EAR (Estimated Average Requirement), RNI (Reference Nutrient Intake), and LRNI (Lower Reference Nutrient Intake).
Key Fact: RNI is the amount of a nutrient sufficient for almost all individuals in a population group. If intake falls below LRNI, deficiency is likely.
Key Fact: Energy requirements vary by age, sex, activity level, and life stage. Adolescent boys need about 2,200-2,800 kcal/day; adolescent girls about 1,800-2,200 kcal/day.
Key Fact: Nutritional needs at different life stages: infants (rapid growth, need high energy and nutrient density), teenagers (growth spurts, increased calcium and iron needs), elderly (reduced energy needs but same micronutrient needs, vitamin D and B12 concerns).
Key Fact: Special dietary needs: vegetarians and vegans (ensure B12, iron, calcium, omega-3), coeliac disease (gluten-free), lactose intolerance (dairy alternatives), food allergies (avoid allergens, find alternatives).
Key Fact: Religious and cultural diets: halal (Muslim), kosher (Jewish), Hindu vegetarianism, Buddhist vegetarianism. Understanding these is important for inclusive meal planning.
Key Fact: The 8 government guidelines for a healthy diet: 1) Base meals on starchy carbohydrates, 2) Eat 5-a-day, 3) Eat more fish including oily, 4) Cut saturated fat and sugar, 5) Eat less salt, 6) Get active and maintain healthy weight, 7) Drink plenty of water, 8) Don't skip breakfast.
Key Fact: Meal planning should consider: nutritional balance (all food groups), energy needs, budget, time/skills available, cultural preferences, and special dietary requirements.
Key Fact: Portion sizes matter: even healthy foods contribute to weight gain in excess. The Eatwell Guide provides portion guidance for each food group.
Key Fact: Malnutrition includes both undernutrition (deficiency, wasting) and overnutrition (obesity, excess). Both are forms of malnutrition with serious health consequences.
📋 Key Vocabulary and Concepts
For The Balanced Diet & Eatwell Guide, you must know:
- Eatwell Guide
- DRV
- RNI
- EAR
- LRNI
- Balanced diet
- Malnutrition
- Undernutrition
- Overnutrition
- Portion size
- 5-a-day
- Special diet
- Life stage
- Nutrient density
❓ Practice Questions
Q: Explain the five food groups in the Eatwell Guide.
Q: What are DRVs and why are they important?
Q: Evaluate how well the UK population follows the Eatwell Guide.
✅ Answers
- 1) Fruit and vegetables — at least 5 portions a day for vitamins, minerals, and fibre. 2) Starchy carbohydrates — base every meal on these (bread, rice, potatoes, pasta) for energy and fibre. 3) Dairy and alternatives — for calcium and protein; choose lower-fat options. 4) Beans, pulses, fish, eggs, meat and other proteins — for protein, iron, and B vitamins; eat more pulses and fish. 5) Oils and spreads — small amounts; choose unsaturated fats.
- Dietary Reference Values are estimates of nutrient requirements for different population groups. RNI (Reference Nutrient Intake) is the amount sufficient for almost all individuals. EAR (Estimated Average Requirement) meets the needs of 50% of the population. LRNI is the intake below which deficiency is likely. DRVs help plan diets, formulate policy, and assess population nutritional status.
- Most UK diets deviate significantly from the Eatwell Guide: too much saturated fat, sugar, and salt; too little fibre, fruit, vegetables, and oily fish. Only about 30% of adults eat 5-a-day. Processed foods high in fat, sugar, and salt make up a large proportion of energy intake. This contributes to high rates of obesity, type 2 diabetes, and cardiovascular disease. Socioeconomic factors affect adherence — healthier foods can be more expensive and less accessible in deprived areas.
🎯 Exam Tips
- Use the Eatwell Guide proportions in meal planning questions
- Always consider life stage when discussing nutritional needs
- Link dietary advice to specific health outcomes
📝 Exam Technique
Food Preparation & Nutrition Exam Tips — The Balanced Diet & Eatwell Guide:
1. For The Balanced Diet & Eatwell Guide questions, show every step of your working clearly — method marks count even if the final answer is wrong
2. Check your answer makes sense in context (estimation, units, reasonableness)
3. Use correct mathematical notation and state formulae before substituting values
4. If a The Balanced Diet & Eatwell Guide question asks you to 'prove' or 'show', write a logical chain of reasoning with a conclusion line
5. For problem-solving, identify the topic first, then recall the relevant method
1. For The Balanced Diet & Eatwell Guide questions, show every step of your working clearly — method marks count even if the final answer is wrong
2. Check your answer makes sense in context (estimation, units, reasonableness)
3. Use correct mathematical notation and state formulae before substituting values
4. If a The Balanced Diet & Eatwell Guide question asks you to 'prove' or 'show', write a logical chain of reasoning with a conclusion line
5. For problem-solving, identify the topic first, then recall the relevant method
⚠️ Common Errors
✗ The Eatwell Guide applies to every single meal. ✓ The Eatwell Guide shows proportions for the overall diet, not individual meals. A meal doesn't need to include all five groups — it's the balance across a day or week that matters.
✗ Eating the RNI of a nutrient guarantees you won't be deficient. ✓ RNI is sufficient for almost all individuals (97.5% of the population), but individual requirements vary. Some people may need more than the RNI due to health conditions, activity levels, or absorption issues.
✗ A balanced diet means eating equal amounts of each food group. ✓ A balanced diet means eating the correct proportions of each food group — not equal amounts. The Eatwell Guide shows starchy carbohydrates should form the largest proportion, with oils and spreads the smallest.
✍️ Model Answer
Full-Mark Response
Plan a nutritionally balanced day's meals for a 15-year-old vegetarian girl. Justify your choices. [12 marks]
A nutritionally balanced day for a 15-year-old vegetarian girl must meet increased needs for iron, calcium, and protein during adolescence while addressing the limitations of a vegetarian diet. Breakfast: Porridge made with fortified plant milk, topped with berries and seeds. Porridge provides slow-release energy from complex carbohydrates. Fortified plant milk supplies calcium and vitamin D. Berries provide vitamin C (which enhances iron absorption). Seeds add omega-3 fatty acids. Lunch: Wholegrain pitta with hummus, roasted vegetables, and a side salad. The wholegrain pitta provides fibre and B vitamins. Hummus provides protein and iron from chickpeas. The salad vegetables add vitamins and fibre. Adding a glass of orange juice enhances iron absorption from the plant-based meal. Dinner: Tofu stir-fry with mixed vegetables and brown rice. Tofu provides HBV protein and calcium (if set with calcium salts). Mixed vegetables provide a range of vitamins and minerals. Brown rice adds fibre and B vitamins. Using a small amount of sesame oil provides unsaturated fat. Snack: Greek yoghurt (or fortified alternative) with walnuts. This provides calcium, protein, and omega-3 fatty acids. Key nutritional considerations: iron from plant sources (non-haem) is enhanced by vitamin C at each meal; calcium is obtained from fortified products; B12 (only found naturally in animal products) must be obtained from fortified foods or supplements; protein is achieved through complementary combinations (grains + pulses). This plan follows the Eatwell Guide proportions while addressing the specific nutritional vulnerabilities of a vegetarian adolescent.
📊 AO Deep Dive
Assessment Objective Analysis
AO1 (Knowledge & Understanding): Demonstrate knowledge and understanding of the balanced diet & eatwell guide, including nutritional principles, food science, and food safety regulations.
AO2 (Application): Apply knowledge and understanding of the balanced diet & eatwell guide to practical cooking contexts, recipe adaptation, and food choice decisions.
AO3 (Analysis & Evaluation): Analyse and evaluate the balanced diet & eatwell guide in relation to nutritional needs, food safety, sustainability, and cultural factors. Justify decisions with reasoned arguments and evidence.
📝 Exam Questions by Topic
- AQA Past Papers - Topic Questions -- AQA
- Edexcel Past Papers - Topic Questions -- Edexcel
- OCR Past Papers - Topic Questions -- OCR
- Eduqas Past Papers - Topic Questions -- Eduqas
🎬 Video Resources
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