A Balanced Diet
A balanced diet contains the right amounts of carbohydrates, proteins, fats, vitamins, minerals, fibre and water for health.
▶ Interact
Play with the controls to see the idea in action.
📘 Learn
A balanced diet contains the right amounts of carbohydrates, proteins, fats, vitamins, minerals, fibre and water for health.
- Lack of vitamin C causes scurvy
- Fibre helps digestion
- Energy needs vary with age and activity
🧠 Quick quiz
Three questions. Score 2 or more to complete the topic.
What is A Balanced Diet?
Within Biology, which covers cells, the human body, genetics, evolution, plants and ecosystems: the science of living things, this topic explains A Balanced Diet. Biology topics show how living things work, from the cell up to whole ecosystems, with models you can explore step by step.
Check that you can explain A Balanced Diet in your own words and give one example from everyday life. If you can do that, you have understood the core idea.
Understanding A Balanced Diet helps you explain how living things stay alive and respond to their surroundings, which is central to biology exams.
A Balanced Diet in detail
A balanced diet contains the right amounts of carbohydrates, proteins, fats, vitamins, minerals, fibre and water for the body's needs. Carbohydrates and fats provide energy, proteins for growth and repair, vitamins and minerals for health, fibre for bowel movement and water for chemical reactions and transport.
The amount of energy needed depends on age, sex and activity level. Deficiencies cause problems, such as scurvy from lack of vitamin C, rickets from vitamin D or calcium and anaemia from iron. Too much food leads to obesity, which increases the risk of diabetes and heart disease. Food labels help in choosing a balanced diet.
How the interactive helps you understand A Balanced Diet
Watch the pie chart in the interactive. Use any sliders or buttons it offers to change the values and see how the pie chart responds.
Before you change anything, predict the result. Then change one value at a time and check whether your prediction was right. This is a quick way to build a correct mental model of A Balanced Diet.
Real-life uses and examples
- Connect A Balanced Diet to health, food and medicine in everyday life.
- Use A Balanced Diet to interpret a diagram, graph or microscope image from a practical.
- Structure a longer answer about A Balanced Diet by moving from definition to example to consequence.
Common mistakes to avoid
- Listing the steps of a process without saying how one step causes the next.
- Using everyday words, such as “energy” or “bad”, without their scientific meaning.
- Learning the definition without testing it. Use the quiz and the interactive to check that you can apply the idea.
Frequently asked questions about A Balanced Diet
What is A Balanced Diet?
A balanced diet contains the right amounts of carbohydrates, proteins, fats, vitamins, minerals, fibre and water for health.
What are the most important points about A Balanced Diet?
The main points are: Lack of vitamin C causes scurvy; Fibre helps digestion; Energy needs vary with age and activity.
Why is A Balanced Diet useful?
Understanding A Balanced Diet helps you explain how living things stay alive and respond to their surroundings, which is central to biology exams.
How can I practise A Balanced Diet?
Open the interactive at the top of this page and change the controls one at a time. Predict the result before each change, then take the three-question quiz. A score of two or more marks the topic as complete on this device.
Which topics are related to A Balanced Diet?
Related topics in Biology include Absorption in the Small Intestine, Leaf Structure, Tropisms.