Food & Cooking · Unit 13

Nutrition and the Body

What food does once you have eaten it

Nutrition is a field where the science is genuinely unsettled in places and where confident advice is often ahead of the evidence.

The unit covers carbohydrate, fat and protein, vitamins and minerals, energy balance and appetite, different dietary patterns, and how to read a nutritional claim critically.

This unit breaks down into 18 short steps and 109 questions, starting at difficulty 3 and building to 4. Below you can see exactly what it covers, how the path is structured, and worked examples with explanations.

Steps: 18
Questions: 109
Difficulty: 3-4

What this unit covers

Diets and Choices
Carbohydrate, Fat and Protein
Vitamins and Minerals
Energy and Appetite
Reading Nutrition Claims

Where this fits

Follows What We Eat. Connects to Biology's Digestion and Nutrition.

Where people slip

Nutrition studies are mostly observational, which makes causal claims hard to support. Foods described as causing or preventing something are usually associated with it in a population.

How the unit is structured

Nutrition and the Body runs as 18 short steps that unlock in order. 13 are practice rounds and 5 are challenge rounds that pull together everything before them. Questions start at difficulty 3 and climb to 4 as you progress.

Step 1 · easierStep 18 · harder

Challenge rounds

Example questions

30 real questions from this unit, with the answer and the reason behind it, grouped by what they practise. There are 109 in the unit altogether.

Carbohydrate, Fat and Protein

Choose all that applyLevel 3
1. Which foods are rich in carbohydrate? Pick all that apply.
- Breadcorrect
- Ricecorrect
- Potatoescorrect
- Olive oil
Bread, rice and potatoes are all starchy carbohydrate foods.
Fact or fibLevel 3
2. All fats are bad for you.
Answer: False
False. The body needs some fat, and different fats have very different effects.
Multiple choiceLevel 3
3. What is fibre?
- Indigestible plant material that helps the gutcorrect
- A type of protein
- A kind of fat
- A mineral
Plant material the body cannot digest, which helps the gut work well.
Sort into groupsLevel 3
4. Sort each food by its main macronutrient.
Answer: Pasta = Mostly carbohydrate; Bread = Mostly carbohydrate; Butter = Mostly fat; Olive oil = Mostly fat
Most foods are richest in one macronutrient.
True or falseLevel 3
5. Protein is used to build and repair the body.
Answer: True
True. Muscles, enzymes and many other structures are built from protein.
Build the sentenceLevel 4
6. Build a sentence about nutrition science.
Answer: Evidence from many studies guides dietary advice
Evidence from many studies guides dietary advice.

Diets and Choices

Choose all that applyLevel 3
7. Which are common food allergies? Pick all that apply.
- Peanutscorrect
- Milkcorrect
- Shellfishcorrect
- Water
Peanuts, milk and shellfish are all common allergens.
Fact or fibLevel 3
8. Food intolerance and food allergy are the same condition.
Answer: False
False. Allergy is an immune response and can be life threatening.
Multiple choiceLevel 3
9. What does vegan mean?
- Eating no animal products at allcorrect
- Eating only fish
- Eating no sugar
- Eating only raw food
A vegan eats no animal products at all, including dairy and eggs.
Odd one outLevel 3
10. Which of these would a vegan NOT eat?
- Cheesecorrect
- Lentils
- Rice
- Apples
Cheese is made from milk, an animal product.
True or falseLevel 3
11. People choose different diets for health, religion, ethics or taste.
Answer: True
True. Many different reasons shape what people eat.
Put in orderLevel 4
12. Put these levels of nutrition evidence in order from weakest to strongest.
Answer: Personal anecdote -> Observational study -> Randomised controlled trial -> Systematic review of trials
Anecdote, observation, trial, systematic review.

Energy and Appetite

Choose all that applyLevel 3
13. Which increase how much energy someone needs? Pick all that apply.
- Hard exercisecorrect
- Growing quicklycorrect
- Being very coldcorrect
- Sleeping in a warm bed
Exercise, growth and being cold all raise energy needs.
Fact or fibLevel 3
14. All calories affect the body in exactly the same way regardless of source.
Answer: False
False. Absorption, satiety and metabolic response differ between foods.
Fill the blankLevel 3
15. The energy your body uses at complete rest is called your ____ metabolic rate.
- basalcorrect
- maximum
- active
- digestive
Basal metabolism keeps the body running.
Multiple choiceLevel 3
16. What unit is food energy usually measured in?
- Kilocaloriescorrect
- Metres
- Litres
- Degrees
Kilocalories, often just called calories, measure food energy.
Picture questionLevel 3
17. 🍏 What does this food mainly give your body?
- Vitamins, fibre and some energy
- Only protein
- Only fat
- Nothing useful
Fruit provides vitamins, fibre and some natural sugar for energy.
Put in orderLevel 3
18. Put these steps of using food energy in order.
Answer: Eat the food -> Digest it in the gut -> Absorb nutrients into the blood -> Use the energy in the body
Eat, digest, absorb, use.

Reading Nutrition Claims

Build the sentenceLevel 3
19. Build a sentence about labels.
Answer: Compare foods using the per hundred grams column
Compare foods using the per hundred grams column.
Choose all that applyLevel 3
20. Which appear on a nutrition panel? Pick all that apply.
- Energycorrect
- Fatcorrect
- Saltcorrect
- The chef's name
Energy, fat, sugar and salt are all listed.
Fill the blankLevel 3
21. Food energy is usually measured in ____.
- kilocaloriescorrect
- kilometres
- litres
- grams of light
Kilocalories are shown on nutrition panels.
Multiple choiceLevel 3
22. Why should you be careful with the word healthy on packaging?
- It is often marketing rather than a strict measurecorrect
- It is always legally checked
- It means organic
- It means low price
It is often marketing language rather than a strict measure.
True or falseLevel 3
23. A food can be low in fat but still high in sugar.
Answer: True
True, which is why the whole panel is worth reading.
Type the answerLevel 3
24. What are the coloured labels showing high, medium or low levels of fat, sugar and salt called?
Answer: traffic light labels
Traffic light labels give a quick guide.

Vitamins and Minerals

Build the sentenceLevel 3
25. Build a sentence about nutrients.
Answer: Vitamins and minerals are needed in small amounts
Vitamins and minerals are needed in small amounts.
Choose all that applyLevel 3
26. Which are good sources of vitamin C? Pick all that apply.
- Orangescorrect
- Red pepperscorrect
- Broccolicorrect
- White rice
Oranges, peppers and broccoli are all rich in vitamin C.
Match the pairsLevel 3
27. Match each nutrient to what it helps with.
Answer: Calcium = Bones and teeth; Iron = Carrying oxygen; Vitamin C = Healing and immunity; Fibre = Gut health
Different nutrients do different jobs.
Multiple choiceLevel 3
28. What are vitamins and minerals together called?
- Micronutrientscorrect
- Macronutrients
- Calories
- Fibres
They are micronutrients, needed in small amounts.
Put in orderLevel 3
29. Put these stages of nutrient use in order.
Answer: Food is digested -> Nutrients cross the gut wall -> They travel in the blood -> Cells use or store them
Digest, absorb, transport, use or store.
Sort into groupsLevel 3
30. Sort each nutrient by whether the body can store it substantially.
Answer: Vitamin A = Stored substantially; Vitamin D = Stored substantially; Vitamin C = Little stored; Most B vitamins = Little stored
Storage capacity affects how often intake matters.

Where these questions come from. Each unit starts as a plan of the concepts it should cover and the difficulty it should span. Questions are written against that plan with AI assistance, then checked by a validator that rejects anything without a single defensible answer, an explanation, or plausible wrong options. How we write questions sets out the whole process, and corrections are fixed in the bank and reach the site and the app the same day.

How you practise

This unit mixes 12 different question formats, so you are recalling and applying rather than recognising the same layout every time.

Build the sentence
Choose all that apply
Fact or fib
Fill the blank
Match the pairs
Multiple choice
Odd one out
Picture question
Put in order
Sort into groups
True or false
Type the answer

Practise Nutrition and the Body

109 questions across 18 steps. Start with step one and crawl at your own pace.

Play this unit

Read about Nutrition and the Body

Explainers from our blog on what this unit covers. Each one ends with real questions from the bank.

What Are Vitamins? The Thirteen Molecules the Body Cannot MakeVitamins are small organic compounds the body needs in tiny amounts and cannot make itself. What each does, how they were discovered, and whether pills help.September 14, 2026 · 4 min read

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