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      Lesson details

      Learning outcome

      I can explain why macronutrients, fibre and water are needed for health.

      Key learning points

      1. Food and drinks provide energy and nutrients in different amounts, and have important functions for health.
      2. Carbohydrate, protein and fat are macronutrients and have different functions and sources. They provide energy.
      3. To maintain body weight we need to balance energy intake (from food and drink) with energy expenditure (from activity).
      4. Fibre is needed to keep our digestive system healthy. It is important to eat a variety of fibre-containing foods.
      5. We need water for a variety of functions, such as regulating body temperature and being physically active.

      Keywords

      • Energy - derived from chemical combustion of food and required for us to stay alive and function

      • Macronutrients - nutrients the human body needs in larger amounts, and provide energy: fat, protein and carbohydrate

      • Fibre - carbohydrates found typically in plant foods that are resistant to digestion

      • Water - a colourless and odourless liquid, the basis of fluids in living organisms

      Common misconception

      We should eat less starchy foods, as these are 'fattening' in the diet and provide little else.

      Starchy foods should make up just over a third of the diet, as they are an important source of energy, fibre and micronutrients.

      Teacher tip

      Use food and cooking examples to bring macronutrients, fibre and water to life. For example: show food examples of the macronutrients and talk about how we consume these everyday; use food packaging to review fat and fibre provided by a range of foods; keep drinking diaries.

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Match these food items to the correct Eatwell Guide food group.

      An image in a quiz
      Correct Answer:grapes, okra,fruit and vegetables
      Correct Answer:spaghetti, yam,potatoes, bread, rice, pasta and other starchy carbohydrates
      Correct Answer:lentils, salmon,beans, pulses, fish, eggs, meat and other proteins
      Correct Answer:cheese, soya drink,dairy and alternatives
      Correct Answer:olive oil,oils and spreads

      Q2.
      Which of these is not healthy eating advice?

      Eat two portions of fish a week.
      Eat at least 5 A DAY.
      Correct answer: Eat more fat.
      Eat less salt.

      Q3.
      Starting from the largest, place these Eatwell Guide food groups in order of size.

      1 - fruit and vegetables
      2 - beans, pulses, fish, eggs, meat and other proteins
      3 - oils and spreads

      Q4.
      Food labels often use the colours of a traffic light to indicate the amounts of fat, salt and sugars. The colour __________ indicates that the food is a healthier choice.

      An image in a quiz
      red
      amber
      Correct answer: green

      Q5.
      Match the following food to their source.

      Correct Answer:potatoes, bread, rice and pasta,carbohydrate
      Correct Answer:beans, fish, eggs and meat,protein
      Correct Answer:oils, spreads, butter and cakes,fats

      Q6.
      Carbohydrate, protein and fat are known as ...

      Correct Answer: macronutrients, macro nutrients, macro-nutrients
      Q1 © Crown copyright, OHID in association with the Welsh government, Food Standards Scotland and the Food Standards Agency in Northern Ireland.

      6 Questions

      Q1.
      Which of these are macronutrients?

      minerals
      Correct answer: protein
      vitamins
      Correct answer: fat
      Correct answer: carbohydrate

      Q2.
      True or false? We should eat less starchy foods, as these are 'fattening' in the diet and provide little else.

      True
      Correct answer: False

      Q3.
      On average, we are recommended to drink __________ glasses of fluid a day to prevent dehydration.

      4-6
      Correct answer: 6-8
      8-10
      10-12

      Q4.
      Fibre helps to keep our system healthy and can help to prevent constipation.

      Correct Answer: digestive, digestion

      Q5.
      When energy intake is lower than energy output …

      Correct answer: over time this will lead to weight loss.
      over time this will lead to energy balance.
      over time this will lead to weight gain.

      Q6.
      Match the following proteins and fats to food sources:

      Correct Answer:protein (animal sources),fish, meat, eggs and dairy products
      Correct Answer:protein (plant sources),pulses, legumes and cereals
      Correct Answer:saturated fats,fatty meats, cream, butter, coconut oil and cakes
      Correct Answer:unsaturated fats,olive oil, nuts, spreads and oily fish

      To help you plan your 8 cooking and nutrition lesson on: Macronutrients, fibre and water, download all teaching resources for free and adapt to suit your pupils' needs...