Diet and good health
What's covered
Key facts
Diet-related diseases
Coronary heart disease is caused by narrowing of the coronary arteries, linked to saturated-fat intake.
Energy balance
Active people need more energy than sedentary people of the same age and sex.
Factors affecting choice
Advertising influences school-age children by making branded, high-sugar foods feel more desirable.
Food labelling
UK law requires allergens to be highlighted (e.g. bold) in the ingredient list of prepacked food.
Healthy eating
Age is one of the factors that affects BMR.
Special diets and life stages
Children under 5 need a higher proportion of energy from fat than adults because of growth and energy demand; from about 5 they move towards the adult diet.
Diet-related diseases
High blood pressure damages artery walls, making blood clots and strokes more likely.
Energy balance
BMR (Basal Metabolic Rate) is the energy the body burns at complete rest.
Factors affecting choice
Advertising and marketing influence consumer food choices, especially in children.
Food labelling
Best-before dates are about quality, not food safety.
Practice questions with answers
A taste of the 98 questions in this topic, answers marked. Sign up to practise the full set with spaced repetition.
Which disease is caused by fatty deposits narrowing the arteries that supply the heart muscle?
- ✓coronary heart disease
- •iron-deficiency anaemia
- •osteoporosis
- •type 2 diabetes
What unit is energy in food usually measured in?
- •grams or kilograms
- ✓kilocalories or kilojoules
- •litres or millilitres
- •watts or volts
Which list contains only factors that affect food choice?
- •allergy, label, oven shelf
- ✓cost, religion, allergy
- •cost, season, fridge colour
- •religion, brand, cutlery colour
Name three things legally required on a food label.
- •calories, exercise, recipe
- ✓name, ingredients, allergens
- •price, brand, packaging
- •supermarket, country, photo
Why do guidelines distinguish free sugars from sugars in whole foods?
- •free sugars contain more calories per gram
- ✓intrinsic sugars come with fibre; free sugars give only energy
- •only free sugars trigger insulin release
- •the body cannot digest free sugars efficiently
Which nutrient do older adults need sufficient amounts of to maintain bone density?
- ✓calcium
- •iron
- •sodium
- •vitamin C
Three minutes a day. Knowledge that sticks.
Practise all 98 Diet and good health questions with spaced repetition, so what you revise today is still there in the exam. Free to use, no card needed.