Homeschool Guide: These lesson plans are a guide for parents. Content may contain errors — always cross-reference with official exam board specifications.

special diets & food intolerance

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4 detailed 50-minute lessons with teaching scripts, worked examples, parent guides, and assessment criteria.

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Lesson Overview

Total Lessons: 4
Tier: Foundation and Higher
Duration: 50 minutes per lesson (200 minutes total)
Exam Boards: AQA, Edexcel, OCR, Eduqas, CCEA

Learning Objectives

Prerequisites

Materials & Equipment

Lesson 1: Introduction: special diets & food intolerance

Duration: 50 minutes

Starter Activity (5 minutes)

Quick Recall

Write down everything you already know about special diets & food intolerance. Then check against the key terms: key terms from special diets & food intolerance. Use a mini-whiteboard or paper.

Main Content (35 minutes)

Parent/Teacher Guide:
Before lesson: Read the script below. Pre-teach key vocab: key terms from special diets & food intolerance.
If stuck: Re-read the revision notes (link above), then break the content into smaller steps.
Extension: See the Stretch & Challenge ideas in Lesson 4.
Teaching Script (35 mins):
Mins 0-5 - Hook: "Today: special diets & food intolerance. By the end you will be able to answer exam questions on it unaided. It connects to the rest of Food Preparation and Nutrition because the ideas here recur across the spec."
Mins 5-20 - Direct Instruction: Work through the core ideas below one at a time; after each, ask your student to explain it back in their own words.
Mins 20-30 - Guided Practice: Model the worked example together, then let your student attempt the first practice question with guidance.
Mins 30-35 - Independent Practice: 2-3 practice questions from Lesson 3 below, with immediate feedback.
First Look

Start with the revision notes summary, then attempt: explain the key ideas of special diets & food intolerance

Plenary (5 minutes)

Check Out

Your student states one thing they learned and one question they still have about special diets & food intolerance.

Lesson 2: Core Concepts: special diets & food intolerance

Duration: 50 minutes

Starter Activity (5 minutes)

Review Previous Lesson

Quick recap: write 3 key points from Lesson 1 on special diets & food intolerance. Check them against the notes below.

Main Content (35 minutes)

Key Fact: A food allergy is an immune system reaction to a specific food protein; symptoms can be severe and include anaphylaxis (a life-threatening reaction).
Key Fact: A food intolerance is a non-immune adverse reaction to food; symptoms are usually less severe and include bloating, diarrhoea, and stomach cramps.
Key Fact: Coeliac disease is an autoimmune condition where gluten damages the small intestine lining, preventing nutrient absorption. Sufferers must follow a strict gluten-free diet.
Key Fact: Lactose intolerance is the inability to digest lactose (milk sugar) due to a lack of the enzyme lactase; symptoms include bloating and diarrhoea after consuming dairy.
Key Fact: Common food allergies include: peanuts, tree nuts, milk, eggs, fish, shellfish, soy, wheat, celery, and sesame.
Key Fact: Vegetarians do not eat meat, poultry, or fish; types include lacto-ovo (eat dairy and eggs), lacto (eat dairy), and ovo (eat eggs).

Practice (10 minutes)

Q: explain the key ideas of special diets & food intolerance

Answer:

Plenary (5 minutes)

Explain Back

Your student teaches the key points back to you without looking. Fill any gaps immediately.

Lesson 3: Application: special diets & food intolerance

Duration: 50 minutes

Starter Activity (5 minutes)

Quick Recall

Recall the key terms: key terms from special diets & food intolerance. Define each in one sentence.

Main Content (35 minutes)

Parent/Teacher Guide: Let your student attempt each question alone first, then compare with the model answer. Award method marks for correct working even if the final answer is wrong.

Work through the practice questions on the revision notes page for this topic.

Plenary (5 minutes)

Error Review

Review any questions answered incorrectly. Identify whether the error was knowledge, method, or reading the question.

Lesson 4: Exam Practice: special diets & food intolerance

Duration: 50 minutes

Starter Activity (5 minutes)

Command Words

Review what these command words require: state (one point), describe (say what happens), explain (say why), compare (both sides), evaluate (judgement).

Main Content (35 minutes)

Extended Answer

Extended question: Full-Mark Response Explain the difference between a food allergy and a food intolerance. Describe how you would adapt a cheese and pasta bake for someone with coeliac disease and someone who is lactose intolerant. (8 marks) <div class="

A food allergy involves the immune system reacting to a specific food protein. Reactions can be immediate and severe, including swelling, difficulty breathing, and anaphylaxis (a life-threatening condition treated with adrenaline). Even trace amounts of the allergen can trigger a reaction. A food intolerance does not involve the immune system; it is a difficulty digesting certain foods, causing symptoms such as bloating, stomach cramps, and diarrhoea. Intolerances are generally less dangerous but can significantly affect quality of life. To adapt a cheese and pasta bake for someone with coeliac disease, I would replace wheat-based pasta with gluten-free pasta (made from rice, corn, or quinoa flour) and use a gluten-free flour blend to thicken the cheese sauce, adding xanthan gum to replace gluten's binding properties. I would also check that all other ingredients (stock, mustard, breadcrumb topping) are gluten-free, as even small amounts of gluten can cause damage. For someone with lactose intolerance, I would replace the cow's milk in the sauce with lactose-free milk or a plant-based alternative such as oat milk, and substitute the cheese with lactose-free cheese or a small amount

Exam Tips: Always distinguish between allergy (immune, potentially fatal) and intolerance (non-immune, usually digestive) — this is a very common question. | When adapting recipes, name the specific substitute ingredient AND explain why it works (e.g. 'gluten-free flour blend plus xanthan gum to replace the binding properties of gluten'). | For vegan diets, always mention the key nutrients at risk: B12, iron, calcium, and omega-3 fatty acids. | Learn the symptoms of coeliac disease, lactose intolerance, and anaphylaxis — they are frequently tested.
Common Errors: ✗ Coeliac disease is a food allergy to gluten. ✓ Coeliac disease is an autoimmune condition, not an allergy. In coeliac disease, gluten triggers the immune system to attack the body's own small intestine lining. In a food allergy, the immune system attacks the food protein itself. ✗ Lactose intolerance means you cannot eat any dairy at all. ✓ Many people with lactose intolerance can tolerate small amounts of lactose or can consume lactose-free dairy products, hard cheeses (which contain very little lactose), and fermented products like yoghurt. ✗ Vegetarians and vegans can easily get all their nutrients from plants. ✓ Well-planned plant-based diets can meet nutritional needs, but vegans espe
Stretch & Challenge (Grade 8-9):
  • Synoptic links: explain how special diets & food intolerance connects to another Food Preparation and Nutrition topic you have studied
  • Real-world: research one real-world use or example of special diets & food intolerance
  • Critical: "What are the limitations of the models used in special diets & food intolerance?"

Plenary (5 minutes)

Assessment Criteria
  • Got it: Confident explanation + correct worked examples
  • Getting there: Main points OK, needs support with detail
  • Not yet: Confused on key concepts - re-run Lesson 2

Homework & Consolidation

Recommended Resources

🎓 Smart Lesson (Guided)